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Mobile Ad hoc Networking (MANET)                              T. Clausen
Internet-Draft                          LIX, Ecole Polytechnique, France
Intended status: Standards Track                             C. Dearlove
Expires: May 17, 2008                    BAE Systems Advanced Technology
                                                                  Centre
                                                                 J. Dean
                                               Naval Research Laboratory
                                                                C. Adjih
                                                      INRIA Rocquencourt
                                                       November 14, 2007


                Generalized MANET Packet/Message Format
                      draft-ietf-manet-packetbb-11

Status of this Memo

   By submitting this Internet-Draft, each author represents that any
   applicable patent or other IPR claims of which he or she is aware
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   This Internet-Draft will expire on May 17, 2008.

Copyright Notice

   Copyright (C) The IETF Trust (2007).








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Abstract

   This document specifies a multi-message packet format that may be
   used by mobile ad hoc network routing and other protocols.


Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  3
   2.  Terminology  . . . . . . . . . . . . . . . . . . . . . . . . .  5
   3.  Applicability Statement  . . . . . . . . . . . . . . . . . . .  6
   4.  Protocol Overview and Functioning  . . . . . . . . . . . . . .  7
   5.  Signaling Framework  . . . . . . . . . . . . . . . . . . . . .  8
     5.1.  Packets  . . . . . . . . . . . . . . . . . . . . . . . . .  8
     5.2.  Messages . . . . . . . . . . . . . . . . . . . . . . . . . 10
     5.3.  Packet and Message Versioning  . . . . . . . . . . . . . . 12
     5.4.  Address Blocks . . . . . . . . . . . . . . . . . . . . . . 12
     5.5.  TLVs and TLV Blocks  . . . . . . . . . . . . . . . . . . . 15
       5.5.1.  TLVs . . . . . . . . . . . . . . . . . . . . . . . . . 15
       5.5.2.  TLV Inclusion and Constraints  . . . . . . . . . . . . 18
     5.6.  Malformed Elements . . . . . . . . . . . . . . . . . . . . 19
     5.7.  Padding  . . . . . . . . . . . . . . . . . . . . . . . . . 20
   6.  IANA Considerations  . . . . . . . . . . . . . . . . . . . . . 21
     6.1.  Message Types  . . . . . . . . . . . . . . . . . . . . . . 21
     6.2.  Packet TLV Types . . . . . . . . . . . . . . . . . . . . . 21
     6.3.  Message TLV Types  . . . . . . . . . . . . . . . . . . . . 22
     6.4.  Address Block TLV Types  . . . . . . . . . . . . . . . . . 22
   7.  Security Considerations  . . . . . . . . . . . . . . . . . . . 24
     7.1.  Security Suggestions . . . . . . . . . . . . . . . . . . . 24
   8.  References . . . . . . . . . . . . . . . . . . . . . . . . . . 25
     8.1.  Normative References . . . . . . . . . . . . . . . . . . . 25
     8.2.  Informative References . . . . . . . . . . . . . . . . . . 25
   Appendix A.   Examples . . . . . . . . . . . . . . . . . . . . . . 26
     A.1.  Address Block Examples . . . . . . . . . . . . . . . . . . 26
     A.2.  TLV Examples . . . . . . . . . . . . . . . . . . . . . . . 28
   Appendix B.   Illustrations  . . . . . . . . . . . . . . . . . . . 31
   Appendix B.1. Packet . . . . . . . . . . . . . . . . . . . . . . . 31
   Appendix B.2. Message and Padding  . . . . . . . . . . . . . . . . 36
   Appendix B.3. Message Body . . . . . . . . . . . . . . . . . . . . 42
   Appendix B.4. Address Block  . . . . . . . . . . . . . . . . . . . 43
   Appendix B.5. TLV Block  . . . . . . . . . . . . . . . . . . . . . 50
   Appendix B.6. TLV  . . . . . . . . . . . . . . . . . . . . . . . . 50
   Appendix C.   Complete Example . . . . . . . . . . . . . . . . . . 56
   Appendix D.   Contributors . . . . . . . . . . . . . . . . . . . . 58
   Appendix E.   Acknowledgements . . . . . . . . . . . . . . . . . . 59
   Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 60
   Intellectual Property and Copyright Statements . . . . . . . . . . 61




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1.  Introduction

   This document specifies the syntax of a general purpose multi-message
   packet format for information exchange between MANET routers.
   Messages consist of a message header, which is designed for control
   of message dissemination, and a message body, which contains protocol
   information.  Only the syntax of the packet and messages is
   specified.  All syntactical entities, including packets and messages,
   are specified using regular expressions.

   This document specifies:

   o  A packet format, allowing zero or more messages to be contained
      within a single transmission, and optionally including a packet
      header.  A packet with zero messages may be sent in case the only
      information to exchange is contained in the packet header.

   o  A message format, where a message is composed of a message header
      and a message body.

   o  A message header format, which contains information which may be
      sufficient to allow a protocol using this specification to make
      processing and forwarding decisions.

   o  A message body format, containing attributes associated with the
      message or the originator of the message, as well as blocks of
      addresses with associated attributes.

   o  An address block format, where an address block represents sets of
      network addresses in a compact (compressed) form.

   o  A generalized type-length-value (TLV) format representing
      attributes.  Multiple TLVs can be included and each associated
      with a packet, a message, an address, or a set of addresses.

   The specification has been explicitly designed with the following
   properties, listed in no particular order, in mind:

   Parsing logic  - the regular expression specification facilitates
      generic, protocol independent, parsing logic.

   Extensibility  - packets and messages defined by a protocol using
      this specification are extensible through defining new message
      types and new TLVs.  Existing protocol specifications using this
      specification will be able to correctly identify and skip such new
      message types and TLVs, while correctly parsing the remainder of
      the packet and message.




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   Efficiency  - when reported addresses share common bit sequences
      (e.g. prefixes or IPv6 interface identifiers) the address block
      representation allows for a compact representation.  Compact
      message headers are ensured through permitting inclusion of only
      required message header elements, unless indicated otherwise.  The
      structure of packet and message encoding allows parsing,
      verifying, and identifying individual elements in a single pass.

   Separation of forwarding and processing  - a protocol using this
      specification can be designed such that duplicate detection and
      controlled scope message forwarding decisions can be made using
      information contained in the message header, without processing
      the message body.






































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2.  Terminology

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
   document are to be interpreted as described in RFC 2119. [1].

   Additionally, this document uses the following terminology:

   Packet  - the top level entity in this specification.  Packets are
      transmitted over a single logical hop and are not forwarded.  A
      packet contains zero or more messages, and may contain a packet
      header.

   Message  - the fundamental entity carrying protocol information, in
      the form of addresses and TLVs.  Messages are designed to be able
      to be forwarded over one or more logical hops.

   Address  - a number of octets of the same length as the source IP
      address in the IP datagram carrying the packet.  The meaning of an
      address is defined by the protocol using this specification.

   Network Address  - An address plus a prefix length between zero and
      the length of an address in bits, inclusive.

   TLV  - a Type-Length-Value structure.  This is a generic way in which
      an attribute can be represented and correctly parsed, without the
      parser having to understand the attribute.

   Element  - a syntactic entity defined in the regular expression
      specification, represented using the notation <foo>.

   <foo>  - if <foo> is an 8 or 16 bit field then <foo> is also used to
      represent the value of that field.

   ?  - zero or one occurrences of the preceding element.

   *  - zero or more occurrences of the preceding element.

   bar  - a variable, usually obtained through calculations based on the
      value(s) of field(s).  Variables are introduced into the
      specification solely as a means to clarify the description.

   address-length  - a variable whose value is the length of an address
      in octets, it is 4 if using IPv4, 16 if using IPv6.







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3.  Applicability Statement

   This specification describes a generic multi-message packet format,
   for carrying MANET routing protocol signals.  The specification has
   been developed from that used by OLSR (The Optimized Link State
   Routing Protocol) [4].

   The specification is designed with IP (IPv4/IPv6) in mind.  All
   addresses within a control message are assumed to be of the same
   size, deduced from IP.  In the case of mixed IPv6 and IPv4 addresses,
   IPv4 addresses are represented as IPv4-mapped IPv6 addresses as
   specified in [2].

   The messages defined by this specification are designed to carry
   routing protocol signals between MANET routers, and to support scope
   limited diffusion, as well as point to point signaling in a multi-hop
   network.

   The packets defined by this specification are designed to carry a
   number of messages in a single transmission.  The packets may be
   unicast or multicast, may be transmitted as appropriate to the
   protocol using this specification and may travel over a single
   logical hop which might consist of one or more IP hops.

   This specification is particularly appropriate for extensible
   protocols.  It offers external extensibility in the form of new
   message types.  It offers internal extensibility in the form of TLVs,
   which may be added to existing message types.

   A protocol using the multi-message packet format defined by this
   specification may constrain the syntax (for example requiring a
   specific set of message header fields) and features (for example
   specifying the suggested diffusion mechanism) that the protocol will
   employ.

















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4.  Protocol Overview and Functioning

   This specification does not describe a protocol.  It describes a
   packet format, which may be used by any mobile ad hoc network routing
   or other protocol.














































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5.  Signaling Framework

   This section provides syntactical specification of a packet,
   represented by the element <packet> and the elements from which it is
   composed.  The specification is given in the form of regular
   expressions.  Illustrations of specified elements are given in
   Appendix B.

5.1.  Packets

   <packet> is defined by:

       <packet> = {<pkt-header><pad-octet>*}?
                  {<message><pad-octet>*}*

   where <message> is defined in Section 5.2, and <pad-octet> is defined
   in Section 5.7.  Successful parsing is terminated when all octets
   (defined using the variable pkt-size below) are used.  A packet MUST
   contain either a <pkt-header> or at least one <message>.

   <pkt-header> is defined by:

       <pkt-header> = <zero>
                      <pkt-semantics>
                      <pkt-version>?
                      <pkt-size>?
                      <pkt-seq-num>?
                      <tlv-block>?

   where:

   <zero>  is an 8 bit field with all bits cleared ('0').  This field
      serves to identify that the packet starts with a <pkt-header>.

   <pkt-semantics>  is an 8 bit field, specifying the composition of the
      <pkt-header>:

      bit 0 (phasversion):  If cleared ('0'), then <pkt-version> is not
         included in the <pkt-header>.  If set ('1'), then <pkt-version>
         is included in the <pkt-header>.

      bit 1 (phassize):  if cleared ('0'), then <pkt-size> is not
         included in the <pkt-header>. if set ('1'), then <pkt-size> is
         included in the <pkt-header>.







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      bit 2 (pnoseqnum):  if cleared ('0'), then <pkt-seq-num> is
         included in the <pkt-header>.  If set ('1'), then <pkt-seq-num>
         is not included in the <pkt-header>.

      bit 3 (phastlv):  if cleared ('0'), then <tlv-block> is not
         included in the <pkt-header>.  If set ('1'), then <tlv-block>
         is included in the <pkt-header>.

      bit 4 (pnouniord):  if cleared ('0'), then the packet TLV block
         MUST conform to the constraints in Section 5.5.2.  If set
         ('1'), then the packet TLV block is not subject to the
         constraints in Section 5.5.2.  Additional constraints MAY be
         imposed by a protocol using this specification.

      bits 5-7:  are RESERVED, and MUST each be cleared ('0') to be in
         conformance with this version of the specification.

   <pkt-version>  is omitted if the phasversion bit is cleared ('0'),
      otherwise is an 8 bit field, specifying the version of this
      specification.

   <pkt-size>  is omitted if the phassize bit is cleared ('0'),
      otherwise is a 16 bit field, specifying the size of the <packet>
      counted in octets.

   <pkt-seq-num>  is omitted if the pnoseqnum bit is set ('1'),
      otherwise is a 16 bit field, specifying a packet sequence number.

   <tlv-block>  is omitted if the phastlv bit is cleared ('0'), and is
      otherwise as defined in Section 5.5.

   Note that since the message type zero is not used (see Section 6),
   the presence or absence of a packet header can be determined by
   inspecting the first octet of the packet.

   pkt-version  is a variable, defined to equal <pkt-version> if
      present, or 0 otherwise.  See Section 5.3.

   pkt-size  is a variable, defined to equal <pkt-size> if present, or
      the size of the payload of the network or transport protocol
      employed otherwise.  (If not present, and the payload size is
      unknown, then the packet cannot be parsed, and is considered
      malformed.)








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5.2.  Messages

   Information is carried through messages.  Messages contain:

   o  A message header.

   o  A message TLV block that contains zero or more TLVs, associated
      with the whole message.

   o  Zero or more address blocks, each containing one or more
      addresses.

   o  An address TLV block, containing zero or more TLVs, following each
      address block.

   <message> is defined by:

       <message>    = <msg-header>
                      <tlv-block>
                      {<addr-block><tlv-block>}*

       <msg-header> = <msg-type>
                      <msg-semantics>
                      <msg-version>?
                      <msg-size>
                      <msg-orig-addr>?
                      <msg-hop-limit>?
                      <msg-hop-count>?
                      <msg-seq-num>?

   where:

   <tlv-block>  is as defined in Section 5.5.

   <addr-block>  is as defined in Section 5.4.

   <msg-type>  is an 8 bit field, specifying the type of message.  A
      type with all bits cleared ('0') MUST NOT be used.

   <msg-semantics>  is an 8 bit field, specifying the interpretation of
      the remainder of the message header:

      bit 0 (mhasversion):  If cleared ('0'), then <msg-version> is not
         included in the <msg-header>.  If set ('1'), then <msg-version>
         is included in the <msg-header>.






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      bit 1 (mnoorig):  If cleared ('0'), then <msg-orig-addr> is
         included in the <msg-header>.  If set ('1'), then <msg-orig-
         addr> is not included in the <msg-header>.

      bit 2 (mnohoplimit):  If cleared ('0'), then <msg-hop-limit> is
         included in the <msg-header>.  If set ('1'), then <msg-hop-
         limit> is not included in the <msg-header>.

      bit 3 (mnohopcount):  If cleared ('0'), then <msg-hop-count> is
         included in the <msg-header>.  If set ('1'), then <msg-hop-
         count> is not included in the <msg-header>

      bit 4 (mnoseqnum):  If cleared ('0'), then <msg-seq-num> is
         included in the <msg-header>.  If set ('1'), then <msg-seq-num>
         is not included in the <msg-header>.

      bit 5 (mistypedep):  If cleared ('0'), then the message sequence
         number in the message is type-independent.  If set ('1'), then
         the message sequence number contained in the message is type
         dependent (the message originator maintains a sequence number
         specific to <msg-type>).  This bit MUST be cleared ('0') if the
         mnoorig bit is set ('1').

      bit 6 (mnouniord):  if cleared ('0'), then the message TLV block
         and all address TLV blocks in the message MUST conform to the
         constraints in Section 5.5.2.  If set ('1'), then the message
         TLV block and all address TLV blocks in the message are not
         subject to the constraints in Section 5.5.2.  Additional
         constraints MAY be imposed by a protocol using this
         specification.

      bit 7:  is RESERVED and MUST be cleared ('0') to be in conformance
         with this version of the specification.

      If bit 1 (mnoorig) and bit 4 (mnoseqnum) are both cleared, then
      the message header provides for duplicate suppression.

      If bit 2 (mnohoplimit) is cleared, then the message header
      provides for scope-delimited forwarding.

   <msg-version>  is omitted if the mhasversion bit is cleared ('0'),
      otherwise is an 8 bit field, specifying the version of this
      specification.

   <msg-size>  is a 16 bit field, specifying the size of the <message>,
      counted in octets.





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   <msg-orig-addr>  is omitted if the mnoorig bit is set ('1'),
      otherwise is an identifier of length equal to address-length,
      which serves to uniquely identify the node that originated the
      message.

   <msg-hop-limit>  is omitted if the mnohoplimit bit is set ('1'),
      otherwise is an 8 bit field, which contains the maximum number of
      logical hops that the message should be further transmitted.
      (<msg-hop-limit> SHOULD be decremented if the message is
      forwarded.)

   <msg-hop-count>  is omitted if the mnohopcount bit is set ('1'),
      otherwise is an 8 bit field, which contains the number of logical
      hops that the message has traveled. (<msg-hop-count> SHOULD be
      incremented if the message is forwarded.)

   <msg-seq-num>  is omitted if the mnoseqnum bit is set ('1'),
      otherwise is a 16 bit field, which contains a unique number,
      generated by the message's originator node.  The <msg-orig-addr>,
      <msg-seq-num>, and, if the mistypedep bit in the <msg-semantics>
      field is set, the <msg-type> of a message serves to uniquely
      identify the message in the network (within the time period until
      <msg-seq-num> wraps around to a matching value).

   msg-version  is a variable, defined to equal <msg-version> if
      present, or to pkt-version otherwise.  See Section 5.3.

5.3.  Packet and Message Versioning

   This specification defines packets and messages of version 0 (zero),
   so that pkt-version and each msg-version MUST equal zero.  This
   SHOULD be indicated by clearing the phasversion and mhasversion bits
   in <pkt-semantics> and <msg-semantics>, respectively.

   A protocol using this specification, or any future version (i.e.
   where pkt-version or msg-version are different from zero) of this
   specification MUST specify appropriate behavior in the case where an
   incoming packet or message indicates a pkt-version or msg-version
   different from the one used by that protocol, e.g. by discarding the
   packet or message.

5.4.  Address Blocks

   An address block may specify one or more addresses, or one or more
   network addresses (address plus prefix length).  An address is
   specified as a sequence of address-length octets of the form head:
   mid:tail.  An address block is an ordered set of addresses sharing
   the same head and tail, and having individual mids.  An address block



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   may specify network addresses either with a single prefix length for
   all network addresses, or with a prefix length for each network
   address.

   <address-block> is defined by:

       <address-block> = <num-addr>
                         <addr-semantics>
                         <head-length>?
                         <head>?
                         <tail-length>?
                         <tail>?
                         <mid>*
                         <prefix-length>*

   where:

   <num-addr>  is an 8 bit field containing the number of addresses
      represented in the address block, which MUST NOT be zero.

   <addr-semantics>  is an 8 bit field specifying the interpretation of
      the remainder of the address block:

      bit 0 (anohead):  if cleared ('0'), then <head-length> is included
         in the <address-block>, and <head> may be included in the
         <address-block>.  If set ('1'), then <head-length> and <head>
         are not included in the <address-block>.

      bit 1 (anotail) and bit 2 (ahaszerotail):  MUST NOT both be set
         ('1').  Otherwise, they are interpreted according to Table 1.

       +---------+--------------+---------------+-----------------+
       | anotail | ahaszerotail | <tail-length> |      <tail>     |
       +---------+--------------+---------------+-----------------+
       |    0    |       0      |    included   | may be included |
       |         |              |               |                 |
       |    1    |       0      |  not included |   not included  |
       |         |              |               |                 |
       |    0    |       1      |    included   |   not included  |
       +---------+--------------+---------------+-----------------+

                                     Table 1

      bit 3 (ahassingleprelen) and bit 4 (ahasmultiprelen):  MUST NOT
         both be set ('1').  Otherwise, they are interpreted according
         to Table 2.





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   +------------+------------+--------------------+--------------------+
   | ahassingle |  ahasmulti |      number of     |     nth network    |
   |   prelen   |   prelen   |   <prefix-length>  |   address prefix   |
   |            |            |       fields       |       length       |
   +------------+------------+--------------------+--------------------+
   |      0     |      0     |        zero        | 8 * address-length |
   |            |            |                    |                    |
   |      1     |      0     |         one        |   <prefix-length>  |
   |            |            |                    |                    |
   |      0     |      1     |     <num-addr>     |         nth        |
   |            |            |                    |   <prefix-length>  |
   +------------+------------+--------------------+--------------------+

                                     Table 2

      bits 5-7:  are RESERVED and MUST each be cleared ('0') to be in
         accordance with this version of the specification.

   <head-length>  if present is an 8 bit field, which contains the total
      length (in octets) of the head of all of the addresses.

   head-length  is a variable, defined to equal <head-length> if
      present, or 0 otherwise.

   <head>  is omitted if head-length == 0, otherwise it is a field of
      the head-length leftmost octets of all the addresses.

   <tail-length>  if present is an 8 bit field, which contains the total
      length (in octets) of the tail of all of the addresses.

   tail-length  is a variable, defined to equal <tail-length> if
      present, or 0 otherwise.

   <tail>  is omitted if tail-length == 0 or if the ahaszerotail bit is
      set ('1'), otherwise it is a field of the tail-length rightmost
      octets of all the addresses.  If the ahaszerotail bit is set ('1')
      then the tail-length rightmost octets of all the addresses are all
      0.

   mid-length  is a variable, which MUST be non-negative, defined by:

      *  mid-length = address-length - head-length - tail-length

   <mid>  is omitted if mid-length == 0, otherwise each <mid> is a field
      of length mid-length octets, representing the mid of the
      corresponding address in the address block.





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   <prefix-length>  is an 8 bit field containing the length, in bits, of
      the prefix length of a network address.  If the ahassingleprelen
      bit is set ('1') then a single <prefix-length> field contains the
      prefix length of all addresses in the address block.  If the
      ahasmultiprelen bit is set ('1') then each of the <num-addr>
      <prefix-length> fields contains the prefix length of the
      corresponding address in the address block (in the same order).
      Otherwise no <prefix-length> fields are present; each address may
      be considered to have a prefix length equal to 8 * address-length
      bits.  The address block is malformed if any <prefix-length> field
      has a value greater than 8 * address-length.

5.5.  TLVs and TLV Blocks

   A TLV block is defined by:

       <tlv-block> = <tlvs-length>
                     <tlv>*

   where:

   <tlvs-length>  is a 16 bit field, which contains the total length (in
      octets) of all of the immediately following <tlv> elements.

   <tlv>  is as defined in Section 5.5.1.

5.5.1.  TLVs

   There are three kinds of TLV, each represented by an element <tlv>:

   o  A packet TLV, included in the packet TLV block in a packet header.

   o  A message TLV, included in the message TLV block in a message,
      before the first address block.

   o  An address block TLV, included in an address TLV block following
      an address block.  An address block TLV applies to:

      *  all addresses in the address block; OR

      *  any continuous sequence of addresses in the address block; OR

      *  a single address in the address block.

   <tlv> is defined by:






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       <tlv> = <tlv-type>
               <tlv-semantics>
               <tlv-type-ext>?
               <index-start>?
               <index-stop>?
               <length>?
               <value>?

   where:

   <tlv-type>  is an 8 bit field, specifying the type of the TLV,
      specific to the TLV kind (i.e. packet, message, or address block
      TLV).

   <tlv-semantics>  is an 8 bit field specifying the interpretation of
      the remainder of the TLV:

      bit 0 (thastypeext):  if cleared ('0'), then <tlv-type-ext> is not
         included in the <tlv>.  If set ('1'), then <tlv-type-ext> is
         included in the <tlv>.

      bit 1 (thasextlen) and bit 2 (tnovalue):  MUST NOT both be set
         ('1').  Otherwise, they are interpreted according to Table 3.

          +------------+----------+--------------+--------------+
          | thasextlen | tnovalue |   <length>   |    <value>   |
          +------------+----------+--------------+--------------+
          |      0     |     0    |    8 bits    |   included   |
          |            |          |              |              |
          |      1     |     0    |    16 bits   |   included   |
          |            |          |              |              |
          |      0     |     1    | not included | not included |
          +------------+----------+--------------+--------------+

                                     Table 3

      bit 3 (tnoindex) and bit 4 (thassingleindex):  MUST NOT both be
         set ('1').  The former MUST be set ('1') and the latter MUST be
         cleared ('0') for packet or message TLVs.  They are interpreted
         according to Table 4.











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       +----------+-----------------+---------------+--------------+
       | tnoindex | thassingleindex | <index-start> | <index-stop> |
       +----------+-----------------+---------------+--------------+
       |     0    |        0        |    included   |   included   |
       |          |                 |               |              |
       |     1    |        0        |  not included | not included |
       |          |                 |               |              |
       |     0    |        1        |    included   | not included |
       +----------+-----------------+---------------+--------------+

                                     Table 4

      bit 5 (tismultivalue):  this bit serves to specify how the <value>
         field is interpreted, as specified below.  This bit MUST be
         cleared ('0') for packet or message TLVs, if the
         thassingleindex bit is set ('1'), or if the tnovalue bit is set
         ('1').

      bits 6-7:  are RESERVED and MUST each be cleared ('0') to be in
         accordance with this version of the specification.

   <tlv-type-ext>  is an 8 bit field, specifying an extension of the TLV
      type, specific to the TLV type and kind (i.e. packet, message, or
      address block TLV).

   tlv-type-ext  is a variable, defined to equal <tlv-type-ext> if
      present, or 0 otherwise.

   tlv-fulltype  is a variable, defined by:

      *  tlv-fulltype = 256 * <tlv-type> + tlv-type-ext;

   <index-start> and <index-stop>  when present are each an 8 bit field,
      interpreted as follows.

   index-start and index-stop  are variables, defined according to
      Table 5.  The variable end-index is defined as follows:

      *  For message and packet TLVs:

         +  end-index = 0

      *  For address block TLVs:

         +  end-index = <num-addr> - 1






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      +----------+-----------------+---------------+---------------+
      | tnoindex | thassingleindex | index-start = |  index-stop = |
      +----------+-----------------+---------------+---------------+
      |     0    |        0        | <index-start> |  <index-stop> |
      |          |                 |               |               |
      |     1    |        0        |       0       |   end-index   |
      |          |                 |               |               |
      |     0    |        1        | <index-start> | <index-start> |
      +----------+-----------------+---------------+---------------+

                                   Table 5

      For an address block TLV, the TLV applies to the addresses from
      position index-start to position index-stop (inclusive) in the
      address block, where the first address has position zero.

   number-values  is a variable, defined by:

      *  number-values = index-stop - index-start + 1

   <length>  is omitted or is an 8 or 16 bit field according to Table 3.
      If the tismultivalue bit is set ('1') then <length> MUST be an
      integral multiple of number-values, and the variable single-length
      is defined by:

      *  single-length = <length> / number-values

      If the tismultivalue bit is cleared ('0'), then the variable
      single-length is defined by:

      *  single-length = <length>

   <value>  if present (see Table 3) is a field of length <length>
      octets.  In an address block TLV, <value> is associated with the
      addresses from index-start to index-stop, inclusive.  If the
      tismultivalue bit is cleared ('0') then the whole of this field is
      associated with each of the indicated addresses.  If the
      tismultivalue bit is set ('1') then this field is divided equally
      into number-values fields, each of length single-length octets and
      these are associated, in order, with the indicated addresses.

5.5.2.  TLV Inclusion and Constraints

   A TLV associates an attribute with a packet, a message or one or more
   consecutive network addresses in an address block.  The
   interpretation and processing of this attribute, and the relationship
   (including order of processing) between different attributes
   associated with the same entity MUST be defined by a protocol which



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   uses this specification.

   If the appropriate semantics bit (pnouniord for a packet TLV block,
   mnouniord for a message TLV block or an address TLV block) is clear
   ('0'), then the following constraints MUST be respected.  These bits
   MUST always be clear ('0') unless a protocol using this specification
   defines otherwise.  Protocols SHOULD only define use of these bits
   when necessary, and then MUST indicate what constraints do apply if
   each of the indicated bits is set ('1'); each of these constraints
   SHOULD be retained unless otherwise necessary.

   o  TLVs in the same TLV block are sorted in non-descending tlv-
      fulltype order.

   o  Two or more address TLVs with the same tlv-fulltype in the same
      message are not associated with the same network address.

   o  TLVs with the same tlv-fulltype associated with the same address
      block are sorted in ascending index-start order.

   In addition, packet and message TLVs MUST be defined so as to
   indicate whether two such TLVs with the same tlv-fulltype are, or are
   not, allowed in the same packet or message TLV block, respectively.

   Note that the above constrains only the encoding of TLVs in a TLV
   block for transmission, and do specifically NOT mandate any given
   order of processing or interpretation by a protocol of the TLVs and
   the entities to which these are associated.

   Respecting the constraints above allows parsing and verification of a
   TLV block in a single pass and allows terminating the search for a
   TLV with a specific type without traversing the entire TLV block.

   The constraints on address block TLVs ensure that encoded information
   (entity-attributes) can be unambiguously decoded.

5.6.  Malformed Elements

   An element is malformed if it cannot be parsed according to its
   syntactical specification (including if there are insufficient octets
   available when a length is specified, in particular if there are
   fewer than pkt-size octets overall) or if a constraint (including,
   but not only, those specified in Section 5.5.2) specified as one
   which MUST be satisfied, is not.  A protocol using this specification
   MUST specify the action, or choice of actions, to be taken when a
   packet containing such elements is received.  Typical examples will
   include discarding any affected message(s), or discarding the
   complete packet.



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5.7.  Padding

   Packet headers and messages MAY be padded to ensure 32 bit alignment
   of each message contained within the packet and of the overall packet
   length.  Padding MAY also be used to ensure that all packets and/or
   messages have the same size.

   All elements are an integer multiple of octets, hence padding can be
   accomplished by inserting an integer number of <pad-octet> elements
   after the element that is to be 32 bit aligned.

   The number of <pad-octet> elements required to achieve this 32 bit
   alignment is the smallest number (0 to 3) that, when added to the
   size of the preceding elements, produces an integer multiple of 4.

   <pad-octet>  is an 8 bit field with all bits cleared ('0').

   There is no need to indicate if padding is included, since a <pad-
   octet> will always precede either a message or the end of the packet.
   In the former case, the start of a message is indicated by the next
   non-zero octet parsed.

   The padding after a message may be freely changed when a message is
   forwarded without affecting the message.



























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6.  IANA Considerations

6.1.  Message Types

   A new registry for message types must be created with initial
   assignments as specified in Table 6.  Future values in the range
   5-127 can be allocated using standards action [3].  Additionally,
   values in the range 128-255 are reserved for private/local use.

                     +------+------------------------+
                     | Type | Description            |
                     +------+------------------------+
                     |   0  | MUST NOT be allocated. |
                     |      |                        |
                     |  1-4 | RESERVED               |
                     +------+------------------------+

                                  Table 6

   Message type 0 MUST NOT be allocated because a zero-octet signifies a
   packet header and zero-octets are used for padding.  Message types 1
   to 4 are reserved because they are used by OLSR [4], which uses a
   compatible packet/message header format.

6.2.  Packet TLV Types

   A new registry for packet TLV types must be created, with no initial
   assignments.

   Future values in the range 0-127 can be allocated using standards
   action [3], respecting the following guidelines:

   values 0-7  - MUST NOT be assigned except when a documented need
      exists that TLVs of a given type are required to appear before all
      other TLVs in the TLV block as encoded for transmission.  Note
      that the need for a TLV to be processed before other TLVs does not
      however automatically translate into a need for the TLV to appear
      before all other TLVs in the TLV block - the order in which TLVs
      are to be processed MUST be defined, if applicable, in the
      protocols using this specification.

   values 8-127  - no constraints.

   Additionally, values in the range 128-255 are reserved for private/
   local use.  If a packet TLV type is allocated then a new registry for
   type extensions of that type must be created.  A document which
   defines a packet TLV type MUST also specify the mechanism by which
   its type extensions are allocated, from among those in [3].



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6.3.  Message TLV Types

   A new registry for message TLV types must be created with no initial
   assignments.

   Future values in the range 0-127 can be allocated using standards
   action [3], respecting the following guidelines:

   values 0-7  - MUST NOT be assigned except when a documented need
      exists that TLVs of a given type are required to appear before all
      other TLVs in the TLV block as encoded for transmission.  Note
      that the need for a TLV to be processed before other TLVs does not
      however automatically translate into a need for the TLV to appear
      before all other TLVs in the TLV block - the order in which TLVs
      are to be processed MUST be defined, if applicable, in the
      protocols using this specification.

   values 8-127  - no constraints.

   Additionally, values in the range 128-255 are reserved for private/
   local use.  If a message TLV type is allocated then a new registry
   for type extensions of that type must be created.  A document which
   defines a message TLV type MUST also specify the mechanism by which
   its type extensions are allocated, from among those in [3].

6.4.  Address Block TLV Types

   A new registry for address block TLV types must be created, with no
   initial assignments.

   Future values in the range 0-127 can be allocated using standards
   action [3], respecting the following guidelines:

   values 0-7  - MUST NOT be assigned except when a documented need
      exists that TLVs of a given type are required to appear before all
      other TLVs in the TLV block as encoded for transmission.  Note
      that the need for a TLV to be processed before other TLVs does not
      however automatically translate into a need for the TLV appearing
      before all other TLVs in the TLV block - the order in which TLVs
      are to be processed MUST be defined, if applicable, in the
      protocols using this specification.

   values 8-127  - no constraints.

   Additionally, values in the range 128-255 are reserved for private/
   local use.  If an address block TLV type is allocated then a new
   registry for type extensions of that type must be created.  A
   document which defines an address block TLV type MUST also specify



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   the mechanism by which its type extensions are allocated, from among
   those in [3].

















































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7.  Security Considerations

   This specification does not describe a protocol; it describes a
   packet format.  As such it does not specify any security
   considerations, these are matters for a protocol using this
   specification.  However two mechanisms which are enabled by this
   specification, and may form part of a security approach in a protocol
   using this specification, are described in Section 8.1.  There is
   however no requirement that a protocol using this specification
   should use either.

7.1.  Security Suggestions

   The security suggestions made here, are based on that:

   o  Messages are designed to be carriers of protocol information and
      MAY, at each hop, be forwarded and/or processed by the protocol
      using this specification.

   o  Packets are designed to carry a number of messages between
      neighboring nodes in a single transmission and over a single
      logical hop.

   Consequently:

   o  For forwarded messages where the message is unchanged by
      forwarding nodes, then end-to-end security MAY be implemented,
      between nodes with an existing security association, by including
      a suitable message TLV containing a cryptographic signature in the
      message.  Since <hop-count> and <hop-limit> are the only fields
      that may be modified when such a message is forwarded in this
      manner, this signature can be calculated based on the entire
      message, including the message header, with the <hop-count> and
      <hop-limit> fields set to zero ('0') if present.

   o  Hop-by-hop packet level security MAY be implemented, between nodes
      with an existing security association, by including a suitable
      packet TLV containing a cryptographic signature to the packet.
      Since packets are received as transmitted, this signature can be
      calculated based on the entire packet, or on parts thereof as
      appropriate.










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8.  References

8.1.  Normative References

   [1]  Bradner, S., "Key words for use in RFCs to Indicate Requirement
        Levels", RFC 2119, BCP 14, March 1997.

   [2]  Hinden, R. and S. Deering, "IP Version 6 Addressing
        Architecture", RFC 4291, February 2006.

   [3]  Narten, T. and H. Alvestrand, "Guidelines for Writing an IANA
        Considerations Section in RFCs", RFC 2434, BCP 26, October 1998.

8.2.  Informative References

   [4]  Clausen, T. and P. Jacquet, "The Optimized Link State Routing
        Protocol", RFC 3626, October 2003.


































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Appendix A.  Examples

   This appendix contains some examples of parts of this specification.

A.1.  Address Block Examples

   The following examples illustrate how some combinations of addresses
   may be efficiently included in address blocks.  These examples are
   for IPv4, with address-length equal to 4. a, b, c etc. represent
   distinct, non-zero, octet values.

   Note that it is permissible to use a less efficient representation,
   in particular one in which the anohead and anotail bits of the
   semantics octet are set, and hence head-length = 0, tail-length = 0,
   mid-length = address-length, and the address block consists of the
   number of addresses, the semantics octet with value 3, and a list of
   the uncompressed addresses.  This is also the most efficient way to
   represent a single address, and the only way to represent, for
   example, a.b.c.d and e.f.g.h in one address block.

   Examples:

   o  To include a.b.c.d, a.b.e.f and a.b.g.h:

      *  head-length = 2;

      *  tail-length = 0;

      *  mid-length = 2;

      *  <addr-semantics> has anotail set (value 2);

      *  <tail-length> and <tail> are omitted.

      The address block is then 3 2 2 a b c d e f g h (11 octets).

   o  To include a.b.c.g and d.e.f.g:

      *  head-length = 0;

      *  tail-length = 1;

      *  mid-length = 3;

      *  <addr-semantics> has anohead set (value 1);

      *  <head-length> and <head> are omitted.




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      The address block is then 2 1 1 g a b c d e f (10 octets).

   o  To include a.b.d.e and a.c.d.e:

      *  head-length = 1;

      *  tail-length = 2;

      *  mid-length = 1;

      *  <addr-semantics> = 0.

      The address block is then 2 0 1 a 2 d e b c (9 octets).

   o  To include a.b.0.0, a.c.0.0, and a.d.0.0:

      *  head-length = 1;

      *  tail-length = 2;

      *  mid-length = 1;

      *  <addr-semantics> has ahaszerotail set (value 4);

      *  <tail> is omitted.

      The address block is then 3 4 1 a 2 b c d (8 octets).

   o  To include a.b.0.0 and c.d.0.0:

      *  head-length = 0;

      *  tail-length = 2;

      *  mid-length = 2;

      *  <addr-semantics> has anohead and ahaszerotail set (value 5);

      *  <head> and <tail> are omitted.

      The address block is then 2 5 2 a b c d (7 octets).

   o  To include a.b.0.0/n and c.d.0.0/n:

      *  head-length = 0;

      *  tail-length = 2;




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      *  mid-length = 2;

      *  <addr-semantics> has anohead, ahaszerotail and ahassingleprelen
         set (value 13);

      *  <head> and <tail> are omitted.

      The address block is then 2 13 2 a b c d n (8 octets).

   o  To include a.b.0.0/n and c.d.0.0/m:

      *  head-length = 0;

      *  tail-length = 2;

      *  mid-length = 2;

      *  <addr-semantics> has anohead, ahaszerotail and ahasmultiprelen
         set (value 21);

      *  <head> and <tail> are omitted.

      The address block is then 2 21 2 a b c d n m (9 octets).

A.2.  TLV Examples

   Assuming the definition of an address block TLV with type EXAMPLE1
   (and no type extension) which has single octet single values, then if
   values a, a, b and c are to be associated with the four addresses in
   the preceding address block, where c is a default value that can be
   omitted, then this can be done in a number of ways.  Possible
   examples are:

   o  Using one multivalue TLV covering all of the addresses:

      *  <tlv-semantics> has tnoindex and tismultivalue set (value 40);

      *  <index-start> and <index-stop> are omitted;

      *  <length> = 4 (single-length = 1).

      *  The TLV is then EXAMPLE1 40 4 a a b c (7 octets).

   o  Using one multivalue TLV omitting the last address:

      *  <tlv-semantics> has tismultivalue set (value 32);





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      *  <index-start> = 0;

      *  <index-stop> = 2

      *  <length> = 3 (single-length = 1).

      *  The TLV is then EXAMPLE1 32 0 2 3 a a b (8 octets).

   o  Using two single value TLVs, omitting the last address.  First:

      *  <tlv-semantics> = 0;

      *  <index-start> = 0;

      *  <index-stop> = 1;

      *  <length> = 1;

      *  <value> = a.

      *  The TLV is then EXAMPLE1 0 0 0 1 1 a (6 octets).

      Second:

      *  <tlv-semantics> has thassingleindex set (value 16);

      *  <index-start> = 2;

      *  <index-stop> is omitted;

      *  <length> = 1;

      *  <value> = b.

      *  The TLV is then EXAMPLE1 16 2 1 b (5 octets).

      Total length of TLVs is 11 octets.

   In this case the first of these is the most efficient.  In other
   cases patterns such as the others may be preferred.  Regardless of
   efficiency, any of these may be used.

   Assuming the definition of an address block TLV with type EXAMPLE2
   (and no type extension) which has no value, which is to be associated
   with the second and third addresses in an address block, then this
   can be indicated with a single TLV:





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   o  <tlv-semantics> has tnovalue set (value 4);

   o  <index-start> = 1;

   o  <index-stop> = 2;

   o  <length> and <value> are omitted.

   o  The TLV is then EXAMPLE2 4 1 2 (4 octets).

   Assuming the definition of a message TLV with type EXAMPLE3 (and no
   type extension) which can take a value field of any length, for such
   a TLV with 8 octets of data (a to h):

   o  <tlv-semantics> has tnoindex set (value 8);

   o  <index-start> and <index-stop> are omitted;

   o  <length> = 8.

   o  The TLV is then EXAMPLE3 8 8 a b c d e f g h (11 octets).

   If, in this example, the number of data octets were 256 or greater
   then <tlv-semantics> would also have thasextlen set and have value
   10.  The length would require two octets (most significant first).
   The TLV length would be 4 + N octets, where N is the number of data
   octets (it can be 3 + N octets if N is 255 or less).
























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Appendix B.  Illustrations

   This informative appendix illustrates the elements, which are
   normatively specified in Section 5 using regular expressions.
   Examples with version fields are omitted, as not needed when using
   this version of this specification (although permitted).

   Bits labeled Rsv or R must be cleared ('0').  Bits labeled C, N, or M
   may be cleared ('0') or set ('1').  Octets labeled Padding must be
   zero ('0'), and are optional.  (They have been omitted where not
   needed for alignment.)

Appendix B.1.  Packet

      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |0 0 0 0 0 0 0 0| Rsv |C|0|0|0|0|    Packet Sequence Number     |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                                                               |
     |                       Message + Padding                       |
     |                                                               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                                                               |
     :                              ...                              :
     |                                                               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                                                               |
     |                       Message + Padding                       |
     |                                                               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+




















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      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |0 0 0 0 0 0 0 0| Rsv |C|0|0|1|0|          Packet Size          |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |    Packet Sequence Number     |            Padding            |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                                                               |
     |                       Message + Padding                       |
     |                                                               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                                                               |
     :                              ...                              :
     |                                                               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                                                               |
     |                       Message + Padding                       |
     |                                                               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+


      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |0 0 0 0 0 0 0 0| Rsv |C|0|1|0|0|            Padding            |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                                                               |
     |                       Message + Padding                       |
     |                                                               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                                                               |
     :                              ...                              :
     |                                                               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                                                               |
     |                       Message + Padding                       |
     |                                                               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+













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      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |0 0 0 0 0 0 0 0| Rsv |C|0|1|1|0|          Packet Size          |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                                                               |
     |                       Message + Padding                       |
     |                                                               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                                                               |
     :                              ...                              :
     |                                                               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                                                               |
     |                       Message + Padding                       |
     |                                                               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+


      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |0 0 0 0 0 0 0 0| Rsv |C|1|0|0|0|    Packet Sequence Number     |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                                                               |
     |                       Packet TLV Block                        |
     |                                                               |
     |                               +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                               |            Padding            |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                                                               |
     |                       Message + Padding                       |
     |                                                               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                                                               |
     :                              ...                              :
     |                                                               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                                                               |
     |                       Message + Padding                       |
     |                                                               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+









Clausen, et al.           Expires May 17, 2008                 [Page 33]

Internet-Draft             MANET packet format             November 2007


      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |0 0 0 0 0 0 0 0| Rsv |C|1|0|1|0|          Packet Size          |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |    Packet Sequence Number     |                               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+                               |
     |                                                               |
     |                       Packet TLV Block                        |
     |                                                               |
     |                               +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                               |            Padding            |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                                                               |
     |                       Message + Padding                       |
     |                                                               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                                                               |
     :                              ...                              :
     |                                                               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                                                               |
     |                       Message + Padding                       |
     |                                                               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+


























Clausen, et al.           Expires May 17, 2008                 [Page 34]

Internet-Draft             MANET packet format             November 2007


      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |0 0 0 0 0 0 0 0| Rsv |C|1|1|0|0|                               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+                               |
     |                                                               |
     |                       Packet TLV Block                        |
     |                                                               |
     |                               +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                               |            Padding            |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                                                               |
     |                       Message + Padding                       |
     |                                                               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                                                               |
     :                              ...                              :
     |                                                               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                                                               |
     |                       Message + Padding                       |
     |                                                               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+


      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |0 0 0 0 0 0 0 0| Rsv |C|1|1|1|0|          Packet Size          |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                                                               |
     |                       Packet TLV Block                        |
     |                                                               |
     |                               +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                               |            Padding            |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                                                               |
     |                       Message + Padding                       |
     |                                                               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                                                               |
     :                              ...                              :
     |                                                               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                                                               |
     |                       Message + Padding                       |
     |                                                               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+



Clausen, et al.           Expires May 17, 2008                 [Page 35]

Internet-Draft             MANET packet format             November 2007


      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                                                               |
     |                       Message + Padding                       |
     |                                                               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                                                               |
     :                              ...                              :
     |                                                               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                                                               |
     |                       Message + Padding                       |
     |                                                               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

Appendix B.2.  Message and Padding

      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     | Message Type  |R|C|N|0|0|0|0|0|         Message Size          |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                      Originator Address                       |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |   Hop Limit   |   Hop Count   |    Message Sequence Number    |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                                                               |
     |                         Message Body                          |
     |                                                               |
     |                               +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                               |            Padding            |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+


      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     | Message Type  |R|C|0|0|0|0|1|0|         Message Size          |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |   Hop Limit   |   Hop Count   |    Message Sequence Number    |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                                                               |
     |                         Message Body                          |
     |                                                               |
     |                               +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                               |            Padding            |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+



Clausen, et al.           Expires May 17, 2008                 [Page 36]

Internet-Draft             MANET packet format             November 2007


      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     | Message Type  |R|C|N|0|0|1|0|0|         Message Size          |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                      Originator Address                       |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |   Hop Count   |    Message Sequence Number    |               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+               |
     |                                                               |
     |                         Message Body                          |
     |                                                               |
     |                               +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                               |            Padding            |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+


      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     | Message Type  |R|C|0|0|0|1|1|0|         Message Size          |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |   Hop Count   |    Message Sequence Number    |               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+               |
     |                                                               |
     |                         Message Body                          |
     |                                                               |
     |                               +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                               |            Padding            |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+


      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     | Message Type  |R|C|N|0|1|0|0|0|         Message Size          |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                      Originator Address                       |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |   Hop Limit   |    Message Sequence Number    |               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+               |
     |                                                               |
     |                         Message Body                          |
     |                                                               |
     |                               +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                               |            Padding            |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+




Clausen, et al.           Expires May 17, 2008                 [Page 37]

Internet-Draft             MANET packet format             November 2007


      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     | Message Type  |R|C|N|0|1|0|1|0|         Message Size          |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |   Hop Limit   |    Message Sequence Number    |               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+               |
     |                                                               |
     |                         Message Body                          |
     |                                                               |
     |                               +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                               |            Padding            |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+


      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     | Message Type  |R|C|N|0|1|1|0|0|         Message Size          |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                      Originator Address                       |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |    Message Sequence Number    |                               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+                               |
     |                                                               |
     |                         Message Body                          |
     |                                                               |
     |                               +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                               |            Padding            |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+


      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     | Message Type  |R|C|N|0|1|1|1|0|         Message Size          |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |    Message Sequence Number    |                               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+                               |
     |                                                               |
     |                         Message Body                          |
     |                                                               |
     |                               +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                               |            Padding            |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+






Clausen, et al.           Expires May 17, 2008                 [Page 38]

Internet-Draft             MANET packet format             November 2007


      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     | Message Type  |R|C|N|1|0|0|0|0|         Message Size          |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                      Originator Address                       |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |   Hop Limit   |   Hop Count   |                               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+                               |
     |                                                               |
     |                         Message Body                          |
     |                                                               |
     |                               +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                               |            Padding            |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+


      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     | Message Type  |R|C|N|1|0|0|1|0|         Message Size          |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |   Hop Limit   |   Hop Count   |                               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+                               |
     |                                                               |
     |                         Message Body                          |
     |                                                               |
     |                               +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                               |            Padding            |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+


      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     | Message Type  |R|C|N|1|0|1|0|0|         Message Size          |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                      Originator Address                       |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |   Hop Count   |                                               |
     +-+-+-+-+-+-+-+-+                                               |
     |                         Message Body                          |
     |                                                               |
     |                               +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                               |            Padding            |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+





Clausen, et al.           Expires May 17, 2008                 [Page 39]

Internet-Draft             MANET packet format             November 2007


      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     | Message Type  |R|C|N|1|0|1|1|0|         Message Size          |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |   Hop Count   |                                               |
     +-+-+-+-+-+-+-+-+                                               |
     |                         Message Body                          |
     |                                                               |
     |                               +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                               |            Padding            |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+


      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     | Message Type  |R|C|N|1|1|0|0|0|         Message Size          |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                      Originator Address                       |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |   Hop Limit   |                                               |
     +-+-+-+-+-+-+-+-+                                               |
     |                         Message Body                          |
     |                                                               |
     |                               +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                               |            Padding            |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+


      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     | Message Type  |R|C|N|1|1|0|1|0|         Message Size          |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |   Hop Limit   |                                               |
     +-+-+-+-+-+-+-+-+                                               |
     |                         Message Body                          |
     |                                                               |
     |                               +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                               |            Padding            |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+









Clausen, et al.           Expires May 17, 2008                 [Page 40]

Internet-Draft             MANET packet format             November 2007


      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     | Message Type  |R|C|N|1|1|1|0|0|         Message Size          |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                      Originator Address                       |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                                                               |
     |                         Message Body                          |
     |                                                               |
     |                               +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                               |            Padding            |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+


      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     | Message Type  |R|C|N|1|1|1|1|0|         Message Size          |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                                                               |
     |                         Message Body                          |
     |                                                               |
     |                               +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                               |            Padding            |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

























Clausen, et al.           Expires May 17, 2008                 [Page 41]

Internet-Draft             MANET packet format             November 2007


Appendix B.3.  Message Body

      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                                                               |
     |                       Message TLV Block                       |
     |                                               +-+-+-+-+-+-+-+-+
     |                                               |               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+               |
     |                                                               |
     |                         Address Block                         |
     |                                                               |
     |               +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |               |                                               |
     +-+-+-+-+-+-+-+-+                                               |
     |                       Address TLV Block                       |
     |                                                               |
     |                               +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                               |                               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+                               |
     |                                                               |
     :                              ...                              :
     |                                                               |
     |                                               +-+-+-+-+-+-+-+-+
     |                                               |               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+               |
     |                                                               |
     |                         Address Block                         |
     |                                                               |
     |                               +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                               |                               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+                               |
     |                                                               |
     |                       Address TLV Block                       |
     |                                                               |
     |                               +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+












Clausen, et al.           Expires May 17, 2008                 [Page 42]

Internet-Draft             MANET packet format             November 2007


Appendix B.4.  Address Block

      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     | Number Addrs  | Rsv |0|0|0|0|0|  Head Length  |     Head      |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |  Head (cont)  |  Tail Length  |             Tail              |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |              Mid              |                               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+                               |
     |                                                               |
     :                              ...                              :
     |                                                               |
     |                               +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                               |              Mid              |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+


      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     | Number Addrs  | Rsv |0|0|0|0|1|  Tail Length  |     Tail      |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |  Tail (cont)  |              Mid              |               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+               |
     |                                                               |
     :                              ...                              :
     |                                                               |
     |               +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |               |              Mid              |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+


      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     | Number Addrs  | Rsv |0|0|0|1|0|  Head Length  |     Head      |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |  Head (cont)  |              Mid              |               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+               |
     |                                                               |
     :                              ...                              :
     |                                                               |
     |               +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |               |              Mid              |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+




Clausen, et al.           Expires May 17, 2008                 [Page 43]

Internet-Draft             MANET packet format             November 2007


      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     | Number Addrs  | Rsv |0|0|0|1|1|              Mid              |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |          Mid (cont)           |                               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+                               |
     |                                                               |
     :                              ...                              :
     |                                                               |
     |                               +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                               |              Mid              |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |          Mid (cont)           |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+


      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     | Number Addrs  | Rsv |0|0|1|0|0|  Head Length  |     Head      |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |  Head (cont)  |  Tail Length  |              Mid              |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                                                               |
     :                              ...                              :
     |                                                               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |              Mid              |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+


      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     | Number Addrs  | Rsv |0|0|1|0|1|  Tail Length  |      Mid      |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |  Mid (cont)   |                                               |
     +-+-+-+-+-+-+-+-+                                               |
     |                                                               |
     :                              ...                              :
     |                                                               |
     |               +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |               |              Mid              |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+






Clausen, et al.           Expires May 17, 2008                 [Page 44]

Internet-Draft             MANET packet format             November 2007


      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     | Number Addrs  | Rsv |0|1|0|0|0|  Head Length  |     Head      |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |  Head (cont)  |  Tail Length  |             Tail              |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |              Mid              |                               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+                               |
     |                                                               |
     :                              ...                              :
     |                                                               |
     |                               +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                               |              Mid              |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     | Prefix Length |
     +-+-+-+-+-+-+-+-+


      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     | Number Addrs  | Rsv |0|1|0|0|1|  Tail Length  |     Tail      |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |  Tail (cont)  |              Mid              |               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+               |
     |                                                               |
     :                              ...                              :
     |                                                               |
     |               +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |               |              Mid              | Prefix Length |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+


      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     | Number Addrs  | Rsv |0|1|0|1|0|  Head Length  |     Head      |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |  Head (cont)  |              Mid              |               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+               |
     |                                                               |
     :                              ...                              :
     |                                                               |
     |               +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |               |              Mid              | Prefix Length |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+




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      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     | Number Addrs  | Rsv |0|1|0|1|1|              Mid              |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |          Mid (cont)           |                               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+                               |
     |                                                               |
     :                              ...                              :
     |                                                               |
     |                               +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                               |              Mid              |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |          Mid (cont)           | Prefix Length |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+


      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     | Number Addrs  | Rsv |0|1|1|0|0|  Head Length  |     Head      |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |  Head (cont)  |  Tail Length  |              Mid              |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                                                               |
     :                              ...                              :
     |                                                               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |              Mid              | Prefix Length |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+


      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     | Number Addrs  | Rsv |0|1|1|0|1|  Tail Length  |      Mid      |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |  Mid (cont)   |                                               |
     +-+-+-+-+-+-+-+-+                                               |
     |                                                               |
     :                              ...                              :
     |                                                               |
     |               +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |               |              Mid              | Prefix Length |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+






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      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     | Number Addrs  | Rsv |1|0|0|0|0|  Head Length  |     Head      |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |  Head (cont)  |  Tail Length  |             Tail              |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |              Mid              |                               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+                               |
     |                                                               |
     :                              ...                              :
     |                                                               |
     |                               +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                               |              Mid              |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     | Prefix Length |                                               |
     +-+-+-+-+-+-+-+-+                                               |
     :                              ...                              :
     |                                               +-+-+-+-+-+-+-+-+
     |                                               | Prefix Length |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+


      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     | Number Addrs  | Rsv |1|0|0|0|1|  Tail Length  |     Tail      |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |  Tail (cont)  |              Mid              |               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+               |
     |                                                               |
     :                              ...                              :
     |                                                               |
     |               +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |               |              Mid              | Prefix Length |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                                                               |
     :                              ...                              :
     |                                                               |
     |                               +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                               | Prefix Length |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+









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      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     | Number Addrs  | Rsv |1|0|0|1|0|  Head Length  |     Head      |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |  Head (cont)  |              Mid              |               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+               |
     |                                                               |
     :                              ...                              :
     |                                                               |
     |               +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |               |              Mid              | Prefix Length |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                                                               |
     :                              ...                              :
     |                                                               |
     |                               +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                               | Prefix Length |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+


      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     | Number Addrs  | Rsv |1|0|0|1|1|              Mid              |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |          Mid (cont)           |                               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+                               |
     |                                                               |
     :                              ...                              :
     |                                                               |
     |                               +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                               |              Mid              |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |          Mid (cont)           | Prefix Length |               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+               |
     |                                                               |
     :                              ...                              :
     |                                                               |
     |               +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |               | Prefix Length |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+









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      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     | Number Addrs  | Rsv |1|0|1|0|0|  Head Length  |     Head      |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |  Head (cont)  |  Tail Length  |              Mid              |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                                                               |
     :                              ...                              :
     |                                                               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |              Mid              | Prefix Length |               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+               |
     |                                                               |
     :                              ...                              :
     |                                                               |
     |               +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |               | Prefix Length |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+


      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     | Number Addrs  | Rsv |1|0|1|0|1|  Tail Length  |      Mid      |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |  Mid (cont)   |                                               |
     +-+-+-+-+-+-+-+-+                                               |
     |                                                               |
     :                              ...                              :
     |                                                               |
     |               +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |               |              Mid              | Prefix Length |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                                                               |
     :                              ...                              :
     |                                                               |
     |                               +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                               | Prefix Length |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+











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Appendix B.5.  TLV Block

      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |            Length             |                               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+                               |
     |                                                               |
     |                              TLV                              |
     |                                               +-+-+-+-+-+-+-+-+
     |                                               |               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+               |
     |                                                               |
     :                              ...                              :
     |                                                               |
     |                               +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                               |                               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+                               |
     |                                                               |
     |                              TLV                              |
     |                                               +-+-+-+-+-+-+-+-+
     |                                               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

Appendix B.6.  TLV

      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |     Type      |Rsv|M|0|0|0|0|0|  Index Start  |  Index Stop   |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |    Length     |                                               |
     +-+-+-+-+-+-+-+-+                                               |
     |                             Value                             |
     |                                                               |
     |               +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |               |
     +-+-+-+-+-+-+-+-+













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      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |     Type      |Rsv|M|0|0|0|0|1|   Type Ext    |  Index Start  |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |  Index Stop   |    Length     |                               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+                               |
     |                                                               |
     |                             Value                             |
     |                                                               |
     |               +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |               |
     +-+-+-+-+-+-+-+-+


      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |     Type      |Rsv|M|0|0|0|1|0|  Index Start  |  Index Stop   |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |            Length             |                               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+                               |
     |                                                               |
     |                             Value                             |
     |                                                               |
     |               +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |               |
     +-+-+-+-+-+-+-+-+


      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |     Type      |Rsv|M|0|0|0|1|1|   Type Ext    |  Index Start  |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |  Index Stop   |            Length             |               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+               |
     |                                                               |
     |                             Value                             |
     |                                                               |
     |               +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |               |
     +-+-+-+-+-+-+-+-+








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      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |     Type      |Rsv|0|0|0|1|0|0|  Index Start  |  Index Stop   |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+


      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |     Type      |Rsv|0|0|0|1|0|1|   Type Ext    |  Index Start  |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |  Index Stop   |
     +-+-+-+-+-+-+-+-+


      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |     Type      |Rsv|M|0|1|0|0|0|    Length     |               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+               |
     |                                                               |
     |                             Value                             |
     |                                                               |
     |               +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |               |
     +-+-+-+-+-+-+-+-+


      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |     Type      |Rsv|M|0|1|0|0|1|   Type Ext    |    Length     |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                                                               |
     |                             Value                             |
     |                                                               |
     |               +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |               |
     +-+-+-+-+-+-+-+-+











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      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |     Type      |Rsv|M|0|1|0|1|0|            Length             |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                                                               |
     |                             Value                             |
     |                                                               |
     |               +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |               |
     +-+-+-+-+-+-+-+-+


      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |     Type      |Rsv|M|0|1|0|1|1|   Type Ext    |    Length     |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     | Length (cont) |                                               |
     +-+-+-+-+-+-+-+-+                                               |
     |                             Value                             |
     |                                                               |
     |               +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |               |
     +-+-+-+-+-+-+-+-+


      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |     Type      |Rsv|0|0|1|1|0|0|
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+


      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |     Type      |Rsv|0|0|1|1|0|1|   Type Ext    |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+












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      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |     Type      |Rsv|0|1|0|0|0|0|  Index Start  |    Length     |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                                                               |
     |                             Value                             |
     |                                                               |
     |               +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |               |
     +-+-+-+-+-+-+-+-+


      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |     Type      |Rsv|0|1|0|0|0|1|   Type Ext    |  Index Start  |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |    Length     |                                               |
     +-+-+-+-+-+-+-+-+                                               |
     |                             Value                             |
     |                                                               |
     |               +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |               |
     +-+-+-+-+-+-+-+-+


      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |     Type      |Rsv|0|1|0|0|1|0|  Index Start  |    Length     |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     | Length (cont) |                                               |
     +-+-+-+-+-+-+-+-+                                               |
     |                                                               |
     |                             Value                             |
     |                                                               |
     |               +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |               |
     +-+-+-+-+-+-+-+-+











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      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |     Type      |Rsv|0|1|0|0|1|1|   Type Ext    |  Index Start  |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |            Length             |                               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+                               |
     |                                                               |
     |                             Value                             |
     |                                                               |
     |               +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |               |
     +-+-+-+-+-+-+-+-+


      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |     Type      |Rsv|0|1|0|1|0|0|  Index Start  |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+


      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |     Type      |Rsv|0|1|0|1|0|1|   Type Ext    |  Index Start  |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
























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Appendix C.  Complete Example

   An example packet, using IPv4 addresses (length four octets) is
   shown.  This packet has a header, indicated by the initial octet 0.
   The packet header has semantics octet 0, and hence has version zero,
   a packet sequence number, but no packet TLV block.

   The packet contains a single message.  This message has semantics
   octet 0, and hence has a complete message header, other than version
   (which is zero), including originator address, hop limit, hop count
   and message sequence number (which is type independent).  The message
   has a message TLV block with content length 9 octets, containing a
   single message TLV.  This TLV has the tnoindex bit of its semantics
   octet 8 set, and has value length 6 octets.  The message then has two
   address blocks each with a following address TLV block.

   The first address block contains 2 network addresses.  It has the
   anohead, ahaszerotail and ahassingleprelen bits of its semantics
   octet 13 set, and has tail length 2 octets, hence mid length two
   octets.  The two tail octets of each address are zero.  The address
   block has a single prefix length.  The following address TLV block is
   empty (content length 0 octets).

   The second address block contains 3 addresses, without prefix
   lengths.  It has the anotail bit of its semantics octet 2 set, and
   has head length 2 octets, hence mid length two octets.  It is
   followed by an address TLV block, with content length 9 octets,
   containing two address block TLVs.  The first of these TLVs has the
   tnoindex bit of its semantics octet 8 set, and has a single value of
   length 2 octets, which applies to all of the addresses in the address
   block.  The second of these TLVs has the tnovalue bit of its
   semantics octet 4 set, and hence has no length or value fields.  It
   does have index fields, which indicate those addresses this TLV
   applies to.

   There is one final padding octet value 0 that is not included in the
   message length of 55 octets.














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      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |0 0 0 0 0 0 0 0|0 0 0 0 0 0 0 0|    Packet Sequence Number     |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     | Message Type  |0 0 0 0 0 0 0 0|0 0 0 0 0 0 0 0 0 0 1 1 0 1 1 1|
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                      Originator Address                       |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |   Hop Limit   |   Hop Count   |    Message Sequence Number    |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1|   TLV Type    |0 0 0 0 1 0 0 0|
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |0 0 0 0 0 1 1 0|                     Value                     |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                 Value (cont)                  |0 0 0 0 0 0 1 0|
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |0 0 0 0 1 1 0 1|0 0 0 0 0 0 1 0|              Mid              |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |              Mid              | Prefix Length |0 0 0 0 0 0 0 0|
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |0 0 0 0 0 0 0 0|0 0 0 0 0 0 1 1|0 0 0 0 0 0 1 0|0 0 0 0 0 0 1 0|
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |             Head              |              Mid              |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |              Mid              |              Mid              |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1|   TLV Type    |0 0 0 0 1 0 0 0|
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |0 0 0 0 0 0 1 0|             Value             |   TLV Type    |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |0 0 0 0 0 1 0 0|  Index Start  |  Index Stop   |0 0 0 0 0 0 0 0|
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+


















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Appendix D.  Contributors

   This specification is the result of the joint efforts of the
   following contributors from the OLSRv2 Design Team -- listed
   alphabetically.

   o  Cedric Adjih, INRIA, France, <Cedric.Adjih@inria.fr>

   o  Emmanuel Baccelli, INRIA, France, <Emmanuel.Baccelli@inria.fr>

   o  Thomas Heide Clausen, LIX, Ecole Polytechnique, France,
      <T.Clausen@computer.org>

   o  Justin W. Dean, NRL, USA<jdean@itd.nrl.navy.mil>

   o  Christopher Dearlove, BAE Systems, UK,
      <chris.dearlove@baesystems.com>

   o  Satoh Hiroki, Hitachi SDL, Japan, <h-satoh.yj@sdl.hitachi.co.jp>

   o  Philippe Jacquet, INRIA, France, <Philippe.Jacquet@inria.fr>

   o  Monden Kazuya, Hitachi SDL, Japan, <monden.vw@sdl.hitachi.co.jp>




























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Appendix E.  Acknowledgements

   The authors would like to acknowledge the team behind OLSRv1, as
   specified in RFC 3626, including Anis Laouiti, Pascale Minet, Laurent
   Viennot (all at INRIA, France), and Amir Qayyum (Center for Advanced
   Research in Engineering, Pakistan) for their contributions.

   The authors would like to gratefully acknowledge the following people
   for intense technical discussions, early reviews and comments on the
   specification and its components: Joe Macker (NRL), Alan Cullen (BAE
   Systems), Ian Chakeres (Motorola), Charlie E. Perkins (Nokia),
   Andreas Schjonhaug (LIX), Florent Brunneau (LIX), Yasunori Owada
   (Niigata University), Teco Boot (Infinity Networks) and the entire
   IETF MANET working group.





































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Authors' Addresses

   Thomas Heide Clausen
   LIX, Ecole Polytechnique, France

   Phone: +33 6 6058 9349
   Email: T.Clausen@computer.org
   URI:   http://www.thomasclausen.org/


   Christopher M. Dearlove
   BAE Systems Advanced Technology Centre

   Phone: +44 1245 242194
   Email: chris.dearlove@baesystems.com
   URI:   http://www.baesystems.com/


   Justin W. Dean
   Naval Research Laboratory

   Phone: +1 202 767 3397
   Email: jdean@itd.nrl.navy.mil
   URI:   http://pf.itd.nrl.navy.mil/


   Cedric Adjih
   INRIA Rocquencourt

   Phone: +33 1 3963 5215
   Email: Cedric.Adjih@inria.fr
   URI:   http://menetou.inria.fr/~adjih/



















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