draft-ietf-ospf-cidr-route-mib-04.txt   draft-ietf-ospf-cidr-route-mib-05.txt 
DRAFT IP Forwarding Table MIB March 1995 draft IP Forwarding Table MIB March 1995
IP Forwarding Table MIB IP Forwarding Table MIB
Fri Mar 17 12:32:57 PST 1995 Fri Mar 24 11:17:22 PST 1995
draft-ietf-ospf-cidr-route-mib-04.txt draft-ietf-ospf-cidr-route-mib-05.txt
Fred Baker Fred Baker
Cisco Systems Cisco Systems
fred@cisco.com fred@cisco.com
Status of this Memo Status of this Memo
This document is an Internet Draft. Internet Drafts are This document is an Internet Draft. Internet Drafts are
working documents of the Internet Engineering Task Force working documents of the Internet Engineering Task Force
(IETF), its Areas, and its Working Groups. Note that other (IETF), its Areas, and its Working Groups. Note that other
groups may also distribute working documents as Internet groups may also distribute working documents as Internet
Drafts. Drafts.
Internet Drafts are valid for a maximum of six months and may Internet Drafts are valid for a maximum of six months and may
be updated, replaced, or obsoleted by other documents at any be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet Drafts as reference time. It is inappropriate to use Internet Drafts as reference
material or to cite them other than as a "work in progress". material or to cite them other than as a "work in progress".
DRAFT IP Forwarding Table MIB March 1995 draft IP Forwarding Table MIB March 1995
1. Introduction 1. Introduction
This memo defines an update to RFC 1354, "IP Forwarding Table This memo defines an update to RFC 1354, "IP Forwarding Table
MIB", for Classless Inter-Domain Routing (CIDR). That MIB", for Classless Inter-Domain Routing (CIDR). That
document was developed by the Router Requirements Working document was developed by the Router Requirements Working
Group as an update to RFC 1213's ipRouteTable, with the Group as an update to RFC 1213's ipRouteTable, with the
display of multiple routes as a primary objective. The display of multiple routes as a primary objective. The
significant difference between this MIB and RFC 1354 is the significant difference between this MIB and RFC 1354 is the
recognition (explicitly discussed but by consensus left to recognition (explicitly discussed but by consensus left to
future work) that CIDR routes may have the same network number future work) that CIDR routes may have the same network number
but different network masks. but different network masks.
DRAFT IP Forwarding Table MIB March 1995 draft IP Forwarding Table MIB March 1995
2. The SNMPv2 Network Management Framework 2. The SNMPv2 Network Management Framework
The SNMPv2 Network Management Framework consists of four major The SNMPv2 Network Management Framework consists of four major
components. They are: components. They are:
o RFC 1441 which defines the SMI, the mechanisms used for o RFC 1441 which defines the SMI, the mechanisms used for
describing and naming objects for the purpose of describing and naming objects for the purpose of
management. management.
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termed the Management Information Base or MIB. Objects in the termed the Management Information Base or MIB. Objects in the
MIB are defined using the subset of Abstract Syntax Notation MIB are defined using the subset of Abstract Syntax Notation
One (ASN.1) defined in the SMI. In particular, each object One (ASN.1) defined in the SMI. In particular, each object
object type is named by an OBJECT IDENTIFIER, an object type is named by an OBJECT IDENTIFIER, an
administratively assigned name. The object type together with administratively assigned name. The object type together with
an object instance serves to uniquely identify a specific an object instance serves to uniquely identify a specific
instantiation of the object. For human convenience, we often instantiation of the object. For human convenience, we often
use a textual string, termed the descriptor, to refer to the use a textual string, termed the descriptor, to refer to the
object type. object type.
DRAFT IP Forwarding Table MIB March 1995 draft IP Forwarding Table MIB March 1995
3. Overview 3. Overview
The MIB consists of two tables and two global objects. The MIB consists of two tables and two global objects.
(1) The object ipForwardNumber indicates the number of (1) The object ipForwardNumber indicates the number of
current routes. This is primarily to avoid having to current routes. This is primarily to avoid having to
read the table in order to determine this number. read the table in order to determine this number.
(2) The ipForwardTable updates the RFC 1213 ipRouteTable to (2) The ipForwardTable updates the RFC 1213 ipRouteTable to
display multipath IP Routes. This is in turn obsoleted display multipath IP Routes. This is in turn obsoleted
by the ipCidrRouteTable. by the ipCidrRouteTable.
(3) The ipCidrRouteTable updates the RFC 1213 ipRouteTable to (3) The ipCidrRouteTable updates the RFC 1213 ipRouteTable to
display multipath IP Routes having the same network display multipath IP Routes having the same network
number but differing network masks. number but differing network masks.
DRAFT IP Forwarding Table MIB March 1995 draft IP Forwarding Table MIB March 1995
4. Definitions 4. Definitions
IP-FORWARD-MIB DEFINITIONS ::= BEGIN IP-FORWARD-MIB DEFINITIONS ::= BEGIN
IMPORTS IMPORTS
MODULE-IDENTITY, OBJECT-TYPE, IpAddress, Integer32, Gauge32 MODULE-IDENTITY, OBJECT-TYPE, IpAddress, Integer32, Gauge32
FROM SNMPv2-SMI FROM SNMPv2-SMI
RowStatus RowStatus
FROM SNMPv2-TC FROM SNMPv2-TC
ip ip
FROM RFC1213-MIB FROM RFC1213-MIB
MODULE-COMPLIANCE, OBJECT-GROUP MODULE-COMPLIANCE, OBJECT-GROUP
FROM SNMPv2-CONF; FROM SNMPv2-CONF;
ipForward MODULE-IDENTITY ipForward MODULE-IDENTITY
LAST-UPDATED "9503171232Z" -- Fri Mar 17 12:32:57 PST 1995 LAST-UPDATED "9503241117Z" -- Fri Mar 24 11:17:22 PST 1995
ORGANIZATION "IETF OSPF Working Group" ORGANIZATION "IETF OSPF Working Group"
CONTACT-INFO CONTACT-INFO
" Fred Baker " Fred Baker
Postal: Cisco Systems Postal: Cisco Systems
519 Lado Drive 519 Lado Drive
Santa Barbara, California 93111 Santa Barbara, California 93111
Phone: +1 805 681 0115 Phone: +1 805 681 0115
Email: fred@cisco.com Email: fred@cisco.com
" "
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that are not invalid." that are not invalid."
::= { ipForward 1 } ::= { ipForward 1 }
-- IP Forwarding Table -- IP Forwarding Table
-- The IP Forwarding Table obsoletes and replaces the ipRoute -- The IP Forwarding Table obsoletes and replaces the ipRoute
-- Table current in MIB-I and MIB-II. It adds knowledge of -- Table current in MIB-I and MIB-II. It adds knowledge of
-- the autonomous system of the next hop, multiple next hop -- the autonomous system of the next hop, multiple next hop
-- support, and policy routing support. -- support, and policy routing support.
DRAFT IP Forwarding Table MIB March 1995 draft IP Forwarding Table MIB March 1995
ipForwardTable OBJECT-TYPE ipForwardTable OBJECT-TYPE
SYNTAX SEQUENCE OF IpForwardEntry SYNTAX SEQUENCE OF IpForwardEntry
MAX-ACCESS not-accessible MAX-ACCESS not-accessible
STATUS obsolete STATUS obsolete
DESCRIPTION DESCRIPTION
"This entity's IP Routing table." "This entity's IP Routing table."
REFERENCE REFERENCE
"RFC 1213 Section 6.6, The IP Group" "RFC 1213 Section 6.6, The IP Group"
::= { ipForward 2 } ::= { ipForward 2 }
skipping to change at page 7, line 5 skipping to change at page 7, line 5
Integer32, Integer32,
ipForwardType ipForwardType
INTEGER, INTEGER,
ipForwardProto ipForwardProto
INTEGER, INTEGER,
ipForwardAge ipForwardAge
Integer32, Integer32,
ipForwardInfo ipForwardInfo
OBJECT IDENTIFIER, OBJECT IDENTIFIER,
DRAFT IP Forwarding Table MIB March 1995 draft IP Forwarding Table MIB March 1995
ipForwardNextHopAS ipForwardNextHopAS
Integer32, Integer32,
ipForwardMetric1 ipForwardMetric1
Integer32, Integer32,
ipForwardMetric2 ipForwardMetric2
Integer32, Integer32,
ipForwardMetric3 ipForwardMetric3
Integer32, Integer32,
ipForwardMetric4 ipForwardMetric4
skipping to change at page 8, line 5 skipping to change at page 8, line 5
STATUS obsolete STATUS obsolete
DESCRIPTION DESCRIPTION
"Indicate the mask to be logical-ANDed with the "Indicate the mask to be logical-ANDed with the
destination address before being compared to destination address before being compared to
the value in the ipForwardDest field. For the value in the ipForwardDest field. For
those systems that do not support arbitrary those systems that do not support arbitrary
subnet masks, an agent constructs the value of subnet masks, an agent constructs the value of
the ipForwardMask by reference to the IP Ad- the ipForwardMask by reference to the IP Ad-
dress Class. dress Class.
DRAFT IP Forwarding Table MIB March 1995 draft IP Forwarding Table MIB March 1995
Any assignment (implicit or otherwise) of an Any assignment (implicit or otherwise) of an
instance of this object to a value x must be instance of this object to a value x must be
rejected if the bitwise logical-AND of x with rejected if the bitwise logical-AND of x with
the value of the corresponding instance of the the value of the corresponding instance of the
ipForwardDest object is not equal to ipForward- ipForwardDest object is not equal to ipForward-
Dest." Dest."
DEFVAL { '00000000'h } -- 0.0.0.0 DEFVAL { '00000000'h } -- 0.0.0.0
::= { ipForwardEntry 2 } ::= { ipForwardEntry 2 }
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| | | | | | | |
+-----+-----+-----+-----+-----+-----+-----+-----+ +-----+-----+-----+-----+-----+-----+-----+-----+
IP TOS IP TOS IP TOS IP TOS
Field Policy Field Policy Field Policy Field Policy
Contents Code Contents Code Contents Code Contents Code
0 0 0 0 ==> 0 0 0 0 1 ==> 2 0 0 0 0 ==> 0 0 0 0 1 ==> 2
0 0 1 0 ==> 4 0 0 1 1 ==> 6 0 0 1 0 ==> 4 0 0 1 1 ==> 6
0 1 0 0 ==> 8 0 1 0 1 ==> 10 0 1 0 0 ==> 8 0 1 0 1 ==> 10
DRAFT IP Forwarding Table MIB March 1995 draft IP Forwarding Table MIB March 1995
0 1 1 0 ==> 12 0 1 1 1 ==> 14 0 1 1 0 ==> 12 0 1 1 1 ==> 14
1 0 0 0 ==> 16 1 0 0 1 ==> 18 1 0 0 0 ==> 16 1 0 0 1 ==> 18
1 0 1 0 ==> 20 1 0 1 1 ==> 22 1 0 1 0 ==> 20 1 0 1 1 ==> 22
1 1 0 0 ==> 24 1 1 0 1 ==> 26 1 1 0 0 ==> 24 1 1 0 1 ==> 26
1 1 1 0 ==> 28 1 1 1 1 ==> 30 1 1 1 0 ==> 28 1 1 1 1 ==> 30
Protocols defining 'policy' otherwise must ei- Protocols defining 'policy' otherwise must ei-
ther define a set of values which are valid for ther define a set of values which are valid for
this object or must implement an integer- this object or must implement an integer-
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invalid (2), -- logically deleted invalid (2), -- logically deleted
local (3), -- local interface local (3), -- local interface
remote (4) -- remote destination remote (4) -- remote destination
} }
MAX-ACCESS read-create MAX-ACCESS read-create
STATUS obsolete STATUS obsolete
DESCRIPTION DESCRIPTION
"The type of route. Note that local(3) refers "The type of route. Note that local(3) refers
to a route for which the next hop is the final to a route for which the next hop is the final
DRAFT IP Forwarding Table MIB March 1995 draft IP Forwarding Table MIB March 1995
destination; remote(4) refers to a route for destination; remote(4) refers to a route for
which the next hop is not the final destina- which the next hop is not the final destina-
tion. tion.
Setting this object to the value invalid(2) has Setting this object to the value invalid(2) has
the effect of invalidating the corresponding the effect of invalidating the corresponding
entry in the ipForwardTable object. That is, entry in the ipForwardTable object. That is,
it effectively disassociates the destination it effectively disassociates the destination
identified with said entry from the route iden- identified with said entry from the route iden-
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ciscoIgrp (11), -- Cisco IGRP ciscoIgrp (11), -- Cisco IGRP
bbnSpfIgp (12), -- BBN SPF IGP bbnSpfIgp (12), -- BBN SPF IGP
ospf (13), -- Open Shortest Path First ospf (13), -- Open Shortest Path First
bgp (14), -- Border Gateway Protocol bgp (14), -- Border Gateway Protocol
idpr (15) -- InterDomain Policy Routing idpr (15) -- InterDomain Policy Routing
} }
MAX-ACCESS read-only MAX-ACCESS read-only
STATUS obsolete STATUS obsolete
DESCRIPTION DESCRIPTION
DRAFT IP Forwarding Table MIB March 1995 draft IP Forwarding Table MIB March 1995
"The routing mechanism via which this route was "The routing mechanism via which this route was
learned. Inclusion of values for gateway rout- learned. Inclusion of values for gateway rout-
ing protocols is not intended to imply that ing protocols is not intended to imply that
hosts should support those protocols." hosts should support those protocols."
::= { ipForwardEntry 7 } ::= { ipForwardEntry 7 }
ipForwardAge OBJECT-TYPE ipForwardAge OBJECT-TYPE
SYNTAX Integer32 SYNTAX Integer32
MAX-ACCESS read-only MAX-ACCESS read-only
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ipForwardNextHopAS OBJECT-TYPE ipForwardNextHopAS OBJECT-TYPE
SYNTAX Integer32 SYNTAX Integer32
MAX-ACCESS read-create MAX-ACCESS read-create
STATUS obsolete STATUS obsolete
DESCRIPTION DESCRIPTION
"The Autonomous System Number of the Next Hop. "The Autonomous System Number of the Next Hop.
When this is unknown or not relevant to the When this is unknown or not relevant to the
protocol indicated by ipForwardProto, zero." protocol indicated by ipForwardProto, zero."
DRAFT IP Forwarding Table MIB March 1995 draft IP Forwarding Table MIB March 1995
DEFVAL { 0 } DEFVAL { 0 }
::= { ipForwardEntry 10 } ::= { ipForwardEntry 10 }
ipForwardMetric1 OBJECT-TYPE ipForwardMetric1 OBJECT-TYPE
SYNTAX Integer32 SYNTAX Integer32
MAX-ACCESS read-create MAX-ACCESS read-create
STATUS obsolete STATUS obsolete
DESCRIPTION DESCRIPTION
"The primary routing metric for this route. "The primary routing metric for this route.
skipping to change at page 13, line 5 skipping to change at page 13, line 5
the routing-protocol specified in the route's the routing-protocol specified in the route's
ipForwardProto value. If this metric is not ipForwardProto value. If this metric is not
used, its value should be set to -1." used, its value should be set to -1."
DEFVAL { -1 } DEFVAL { -1 }
::= { ipForwardEntry 13 } ::= { ipForwardEntry 13 }
ipForwardMetric4 OBJECT-TYPE ipForwardMetric4 OBJECT-TYPE
SYNTAX Integer32 SYNTAX Integer32
MAX-ACCESS read-create MAX-ACCESS read-create
DRAFT IP Forwarding Table MIB March 1995 draft IP Forwarding Table MIB March 1995
STATUS obsolete STATUS obsolete
DESCRIPTION DESCRIPTION
"An alternate routing metric for this route. "An alternate routing metric for this route.
The semantics of this metric are determined by The semantics of this metric are determined by
the routing-protocol specified in the route's the routing-protocol specified in the route's
ipForwardProto value. If this metric is not ipForwardProto value. If this metric is not
used, its value should be set to -1." used, its value should be set to -1."
DEFVAL { -1 } DEFVAL { -1 }
::= { ipForwardEntry 14 } ::= { ipForwardEntry 14 }
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STATUS obsolete STATUS obsolete
DESCRIPTION DESCRIPTION
"An alternate routing metric for this route. "An alternate routing metric for this route.
The semantics of this metric are determined by The semantics of this metric are determined by
the routing-protocol specified in the route's the routing-protocol specified in the route's
ipForwardProto value. If this metric is not ipForwardProto value. If this metric is not
used, its value should be set to -1." used, its value should be set to -1."
DEFVAL { -1 } DEFVAL { -1 }
::= { ipForwardEntry 15 } ::= { ipForwardEntry 15 }
DRAFT IP Forwarding Table MIB March 1995 draft IP Forwarding Table MIB March 1995
ipCidrRouteNumber OBJECT-TYPE ipCidrRouteNumber OBJECT-TYPE
SYNTAX Gauge32 SYNTAX Gauge32
MAX-ACCESS read-only MAX-ACCESS read-only
STATUS current STATUS current
DESCRIPTION DESCRIPTION
"The number of current ipCidrRouteTable entries "The number of current ipCidrRouteTable entries
that are not invalid." that are not invalid."
::= { ipForward 3 } ::= { ipForward 3 }
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ipCidrRouteMask, ipCidrRouteMask,
ipCidrRouteTos, ipCidrRouteTos,
ipCidrRouteNextHop ipCidrRouteNextHop
} }
::= { ipCidrRouteTable 1 } ::= { ipCidrRouteTable 1 }
IpCidrRouteEntry ::= IpCidrRouteEntry ::=
SEQUENCE { SEQUENCE {
ipCidrRouteDest ipCidrRouteDest
DRAFT IP Forwarding Table MIB March 1995 draft IP Forwarding Table MIB March 1995
IpAddress, IpAddress,
ipCidrRouteMask ipCidrRouteMask
IpAddress, IpAddress,
ipCidrRouteTos ipCidrRouteTos
Integer32, Integer32,
ipCidrRouteNextHop ipCidrRouteNextHop
IpAddress, IpAddress,
ipCidrRouteIfIndex ipCidrRouteIfIndex
Integer32, Integer32,
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STATUS current STATUS current
DESCRIPTION DESCRIPTION
"The destination IP address of this route. "The destination IP address of this route.
This object may not take a Multicast (Class D) This object may not take a Multicast (Class D)
address value. address value.
Any assignment (implicit or otherwise) of an Any assignment (implicit or otherwise) of an
instance of this object to a value x must be instance of this object to a value x must be
DRAFT IP Forwarding Table MIB March 1995 draft IP Forwarding Table MIB March 1995
rejected if the bitwise logical-AND of x with rejected if the bitwise logical-AND of x with
the value of the corresponding instance of the the value of the corresponding instance of the
ipCidrRouteMask object is not equal to x." ipCidrRouteMask object is not equal to x."
::= { ipCidrRouteEntry 1 } ::= { ipCidrRouteEntry 1 }
ipCidrRouteMask OBJECT-TYPE ipCidrRouteMask OBJECT-TYPE
SYNTAX IpAddress SYNTAX IpAddress
MAX-ACCESS read-only MAX-ACCESS read-only
STATUS current STATUS current
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STATUS current STATUS current
DESCRIPTION DESCRIPTION
"The policy specifier is the IP TOS Field. The encoding "The policy specifier is the IP TOS Field. The encoding
of IP TOS is as specified by the following convention. of IP TOS is as specified by the following convention.
Zero indicates the default path if no more specific Zero indicates the default path if no more specific
policy applies. policy applies.
+-----+-----+-----+-----+-----+-----+-----+-----+ +-----+-----+-----+-----+-----+-----+-----+-----+
| | | | | | | |
DRAFT IP Forwarding Table MIB March 1995 draft IP Forwarding Table MIB March 1995
| PRECEDENCE | TYPE OF SERVICE | 0 | | PRECEDENCE | TYPE OF SERVICE | 0 |
| | | | | | | |
+-----+-----+-----+-----+-----+-----+-----+-----+ +-----+-----+-----+-----+-----+-----+-----+-----+
IP TOS IP TOS IP TOS IP TOS
Field Policy Field Policy Field Policy Field Policy
Contents Code Contents Code Contents Code Contents Code
0 0 0 0 ==> 0 0 0 0 1 ==> 2 0 0 0 0 ==> 0 0 0 0 1 ==> 2
0 0 1 0 ==> 4 0 0 1 1 ==> 6 0 0 1 0 ==> 4 0 0 1 1 ==> 6
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DESCRIPTION DESCRIPTION
"The ifIndex value which identifies the local "The ifIndex value which identifies the local
interface through which the next hop of this interface through which the next hop of this
route should be reached." route should be reached."
DEFVAL { 0 } DEFVAL { 0 }
::= { ipCidrRouteEntry 5 } ::= { ipCidrRouteEntry 5 }
ipCidrRouteType OBJECT-TYPE ipCidrRouteType OBJECT-TYPE
SYNTAX INTEGER { SYNTAX INTEGER {
other (1), -- not specified by this MIB other (1), -- not specified by this MIB
local (2), -- local interface reject (2), -- route which discards traffic
remote (3), -- remote destination local (3), -- local interface
reject (4) -- route which discards traffic remote (4) -- remote destination
} }
MAX-ACCESS read-create MAX-ACCESS read-create
DRAFT IP Forwarding Table MIB March 1995 draft IP Forwarding Table MIB March 1995
STATUS current STATUS current
DESCRIPTION DESCRIPTION
"The type of route. Note that local(3) refers "The type of route. Note that local(3) refers
to a route for which the next hop is the final to a route for which the next hop is the final
destination; remote(4) refers to a route for destination; remote(4) refers to a route for
which the next hop is not the final destina- which the next hop is not the final destina-
tion. tion.
Routes which do not result in traffic forwarding or Routes which do not result in traffic forwarding or
rejection should not be displayed even if the rejection should not be displayed even if the
implementation keeps them stored internally. implementation keeps them stored internally.
reject refers to a route which, if matched, discards reject (2) refers to a route which, if matched, discards
the message as unreachable. This is used in some the message as unreachable. This is used in some
protocols as a means of correctly aggregating routes." protocols as a means of correctly aggregating routes."
::= { ipCidrRouteEntry 6 } ::= { ipCidrRouteEntry 6 }
ipCidrRouteProto OBJECT-TYPE ipCidrRouteProto OBJECT-TYPE
SYNTAX INTEGER { SYNTAX INTEGER {
other (1), -- not specified other (1), -- not specified
local (2), -- local interface local (2), -- local interface
netmgmt (3), -- static route netmgmt (3), -- static route
icmp (4), -- result of ICMP Redirect icmp (4), -- result of ICMP Redirect
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idpr (15) -- InterDomain Policy Routing idpr (15) -- InterDomain Policy Routing
} }
MAX-ACCESS read-only MAX-ACCESS read-only
STATUS current STATUS current
DESCRIPTION DESCRIPTION
"The routing mechanism via which this route was "The routing mechanism via which this route was
learned. Inclusion of values for gateway rout- learned. Inclusion of values for gateway rout-
ing protocols is not intended to imply that ing protocols is not intended to imply that
hosts should support those protocols." hosts should support those protocols."
DRAFT IP Forwarding Table MIB March 1995 draft IP Forwarding Table MIB March 1995
::= { ipCidrRouteEntry 7 } ::= { ipCidrRouteEntry 7 }
ipCidrRouteAge OBJECT-TYPE ipCidrRouteAge OBJECT-TYPE
SYNTAX Integer32 SYNTAX Integer32
MAX-ACCESS read-only MAX-ACCESS read-only
STATUS current STATUS current
DESCRIPTION DESCRIPTION
"The number of seconds since this route was "The number of seconds since this route was
last updated or otherwise determined to be last updated or otherwise determined to be
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STATUS current STATUS current
DESCRIPTION DESCRIPTION
"The Autonomous System Number of the Next Hop. "The Autonomous System Number of the Next Hop.
When this is unknown or not relevant to the When this is unknown or not relevant to the
protocol indicated by ipCidrRouteProto, zero." protocol indicated by ipCidrRouteProto, zero."
DEFVAL { 0 } DEFVAL { 0 }
::= { ipCidrRouteEntry 10 } ::= { ipCidrRouteEntry 10 }
ipCidrRouteMetric1 OBJECT-TYPE ipCidrRouteMetric1 OBJECT-TYPE
DRAFT IP Forwarding Table MIB March 1995 draft IP Forwarding Table MIB March 1995
SYNTAX Integer32 SYNTAX Integer32
MAX-ACCESS read-create MAX-ACCESS read-create
STATUS current STATUS current
DESCRIPTION DESCRIPTION
"The primary routing metric for this route. "The primary routing metric for this route.
The semantics of this metric are determined by The semantics of this metric are determined by
the routing-protocol specified in the route's the routing-protocol specified in the route's
ipCidrRouteProto value. If this metric is not ipCidrRouteProto value. If this metric is not
used, its value should be set to -1." used, its value should be set to -1."
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::= { ipCidrRouteEntry 13 } ::= { ipCidrRouteEntry 13 }
ipCidrRouteMetric4 OBJECT-TYPE ipCidrRouteMetric4 OBJECT-TYPE
SYNTAX Integer32 SYNTAX Integer32
MAX-ACCESS read-create MAX-ACCESS read-create
STATUS current STATUS current
DESCRIPTION DESCRIPTION
"An alternate routing metric for this route. "An alternate routing metric for this route.
The semantics of this metric are determined by The semantics of this metric are determined by
DRAFT IP Forwarding Table MIB March 1995 draft IP Forwarding Table MIB March 1995
the routing-protocol specified in the route's the routing-protocol specified in the route's
ipCidrRouteProto value. If this metric is not ipCidrRouteProto value. If this metric is not
used, its value should be set to -1." used, its value should be set to -1."
DEFVAL { -1 } DEFVAL { -1 }
::= { ipCidrRouteEntry 14 } ::= { ipCidrRouteEntry 14 }
ipCidrRouteMetric5 OBJECT-TYPE ipCidrRouteMetric5 OBJECT-TYPE
SYNTAX Integer32 SYNTAX Integer32
MAX-ACCESS read-create MAX-ACCESS read-create
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ipCidrRouteStatus OBJECT-TYPE ipCidrRouteStatus OBJECT-TYPE
SYNTAX RowStatus SYNTAX RowStatus
MAX-ACCESS read-create MAX-ACCESS read-create
STATUS current STATUS current
DESCRIPTION DESCRIPTION
"The row status variable, used according to "The row status variable, used according to
row installation and removal conventions." row installation and removal conventions."
::= { ipCidrRouteEntry 16 } ::= { ipCidrRouteEntry 16 }
DRAFT IP Forwarding Table MIB March 1995 draft IP Forwarding Table MIB March 1995
-- conformance information -- conformance information
ipForwardConformance OBJECT IDENTIFIER ::= { ipForward 5 } ipForwardConformance OBJECT IDENTIFIER ::= { ipForward 5 }
ipForwardGroups OBJECT IDENTIFIER ::= { ipForwardConformance 1 } ipForwardGroups OBJECT IDENTIFIER ::= { ipForwardConformance 1 }
ipForwardCompliances OBJECT IDENTIFIER ::= { ipForwardConformance 2 } ipForwardCompliances OBJECT IDENTIFIER ::= { ipForwardConformance 2 }
-- compliance statements -- compliance statements
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STATUS current STATUS current
DESCRIPTION DESCRIPTION
"The compliance statement for SNMPv2 entities "The compliance statement for SNMPv2 entities
which implement the ipForward MIB." which implement the ipForward MIB."
MODULE -- this module MODULE -- this module
MANDATORY-GROUPS { ipForwardCidrRouteGroup } MANDATORY-GROUPS { ipForwardCidrRouteGroup }
::= { ipForwardCompliances 1 } ::= { ipForwardCompliances 1 }
DRAFT IP Forwarding Table MIB March 1995 draft IP Forwarding Table MIB March 1995
-- units of conformance -- units of conformance
ipForwardMultiPathGroup OBJECT-GROUP ipForwardMultiPathGroup OBJECT-GROUP
OBJECTS { ipForwardNumber, OBJECTS { ipForwardNumber,
ipForwardDest, ipForwardMask, ipForwardPolicy, ipForwardDest, ipForwardMask, ipForwardPolicy,
ipForwardNextHop, ipForwardIfIndex, ipForwardType, ipForwardNextHop, ipForwardIfIndex, ipForwardType,
ipForwardProto, ipForwardAge, ipForwardInfo, ipForwardProto, ipForwardAge, ipForwardInfo,
ipForwardNextHopAS, ipForwardNextHopAS,
ipForwardMetric1, ipForwardMetric2, ipForwardMetric3, ipForwardMetric1, ipForwardMetric2, ipForwardMetric3,
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ipCidrRouteMetric2, ipCidrRouteMetric3, ipCidrRouteMetric2, ipCidrRouteMetric3,
ipCidrRouteMetric4, ipCidrRouteMetric5, ipCidrRouteStatus ipCidrRouteMetric4, ipCidrRouteMetric5, ipCidrRouteStatus
} }
STATUS current STATUS current
DESCRIPTION DESCRIPTION
"The CIDR Route Table." "The CIDR Route Table."
::= { ipForwardGroups 3 } ::= { ipForwardGroups 3 }
END END
DRAFT IP Forwarding Table MIB March 1995 draft IP Forwarding Table MIB March 1995
5. Acknowledgements 5. Acknowledgements
This work was originally performed by the Router Requirements This work was originally performed by the Router Requirements
Working Group at the request of the OSPF Working Group. This Working Group at the request of the OSPF Working Group. This
update was performed under the auspices of the OSPF Working update was performed under the auspices of the OSPF Working
Group. John Moy of Proteon Incorporated is the chair. Group. John Moy of Proteon Incorporated is the chair.
DRAFT IP Forwarding Table MIB March 1995 draft IP Forwarding Table MIB March 1995
6. References 6. References
[1] Case, J., McCloghrie, K., Rose, M., and S. Waldbusser, [1] Case, J., McCloghrie, K., Rose, M., and S. Waldbusser,
"Structure of Management Information for version 2 of the "Structure of Management Information for version 2 of the
Simple Network Management Protocol (SNMPv2)", RFC 1442, Simple Network Management Protocol (SNMPv2)", RFC 1442,
SNMP Research, Inc., Hughes LAN Systems, Dover Beach SNMP Research, Inc., Hughes LAN Systems, Dover Beach
Consulting, Inc., Carnegie Mellon University, April 1993. Consulting, Inc., Carnegie Mellon University, April 1993.
[2] Galvin, J., and K. McCloghrie, "Administrative Model for [2] Galvin, J., and K. McCloghrie, "Administrative Model for
skipping to change at page 26, line 5 skipping to change at page 26, line 5
[6] Case, J., McCloghrie, K., Rose, M., and S. Waldbusser, [6] Case, J., McCloghrie, K., Rose, M., and S. Waldbusser,
"Textual Conventions for version 2 of the Simple Network "Textual Conventions for version 2 of the Simple Network
Management Protocol (SNMPv2)", RFC 1443, SNMP Research, Management Protocol (SNMPv2)", RFC 1443, SNMP Research,
Inc., Hughes LAN Systems, Dover Beach Consulting, Inc., Inc., Hughes LAN Systems, Dover Beach Consulting, Inc.,
Carnegie Mellon University, April 1993. Carnegie Mellon University, April 1993.
[7] Fred Baker, "IP Forwarding Table MIB", Request for [7] Fred Baker, "IP Forwarding Table MIB", Request for
Comments 1354, (July 1992). Comments 1354, (July 1992).
DRAFT IP Forwarding Table MIB March 1995 draft IP Forwarding Table MIB March 1995
7. Security Considerations 7. Security Considerations
Security is an objective not in this MIB view. Security is an objective not in this MIB view.
8. Author's Address 8. Author's Address
Fred Baker Fred Baker
Cisco Systems Cisco Systems
519 Lado Drive 519 Lado Drive
Santa Barbara, California 93111 Santa Barbara, California 93111
Phone: +1 805 681 0115 Phone: +1 805 681 0115
Email: fred@cisco.com Email: fred@cisco.com
DRAFT IP Forwarding Table MIB March 1995 draft IP Forwarding Table MIB March 1995
Table of Contents Table of Contents
1 Introduction .......................................... 2 1 Introduction .......................................... 2
2 The SNMPv2 Network Management Framework ............... 3 2 The SNMPv2 Network Management Framework ............... 3
2.1 Object Definitions .................................. 3 2.1 Object Definitions .................................. 3
3 Overview .............................................. 4 3 Overview .............................................. 4
4 Definitions ........................................... 5 4 Definitions ........................................... 5
5 Acknowledgements ...................................... 24 5 Acknowledgements ...................................... 24
6 References ............................................ 25 6 References ............................................ 25
7 Security Considerations ............................... 26 7 Security Considerations ............................... 26
8 Author's Address ...................................... 26 8 Author's Address ...................................... 26
IP Forwarding Table MIB
Fri Mar 17 12:32:57 PST 1995
draft-ietf-ospf-cidr-route-mib-04.txt
Fred Baker
Cisco Systems
fred@cisco.com
Status of this Memo
This document is an Internet Draft. Internet Drafts are
working documents of the Internet Engineering Task Force
(IETF), its Areas, and its Working Groups. Note that other
groups may also distribute working documents as Internet
Drafts.
Internet Drafts are valid for a maximum of six months and may
be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet Drafts as reference
material or to cite them other than as a "work in progress".
DRAFT IP Forwarding Table MIB March 1995
9. Introduction
This memo defines an update to RFC 1354, "IP Forwarding Table
MIB", for Classless Inter-Domain Routing (CIDR). That
document was developed by the Router Requirements Working
Group as an update to RFC 1213's ipRouteTable, with the
display of multiple routes as a primary objective. The
significant difference between this MIB and RFC 1354 is the
recognition (explicitly discussed but by consensus left to
future work) that CIDR routes may have the same network number
but different network masks.
DRAFT IP Forwarding Table MIB March 1995
10. The SNMPv2 Network Management Framework
The SNMPv2 Network Management Framework consists of four major
components. They are:
o RFC 1441 which defines the SMI, the mechanisms used for
describing and naming objects for the purpose of
management.
o RFC 1213 defines MIB-II, the core set of managed objects
for the Internet suite of protocols.
o RFC 1445 which defines the administrative and other
architectural aspects of the framework.
o RFC 1448 which defines the protocol used for network
access to managed objects.
The Framework permits new objects to be defined for the
purpose of experimentation and evaluation.
10.1. Object Definitions
Managed objects are accessed via a virtual information store,
termed the Management Information Base or MIB. Objects in the
MIB are defined using the subset of Abstract Syntax Notation
One (ASN.1) defined in the SMI. In particular, each object
object type is named by an OBJECT IDENTIFIER, an
administratively assigned name. The object type together with
an object instance serves to uniquely identify a specific
instantiation of the object. For human convenience, we often
use a textual string, termed the descriptor, to refer to the
object type.
DRAFT IP Forwarding Table MIB March 1995
11. Overview
The MIB consists of two tables and two global objects.
(1) The object ipForwardNumber indicates the number of
current routes. This is primarily to avoid having to
read the table in order to determine this number.
(2) The ipForwardTable updates the RFC 1213 ipRouteTable to
display multipath IP Routes. This is in turn obsoleted
by the ipCidrRouteTable.
(3) The ipCidrRouteTable updates the RFC 1213 ipRouteTable to
display multipath IP Routes having the same network
number but differing network masks.
DRAFT IP Forwarding Table MIB March 1995
12. Definitions
IP-FORWARD-MIB DEFINITIONS ::= BEGIN
IMPORTS
MODULE-IDENTITY, OBJECT-TYPE, IpAddress, Integer32, Gauge32
FROM SNMPv2-SMI
RowStatus
FROM SNMPv2-TC
ip
FROM RFC1213-MIB
MODULE-COMPLIANCE, OBJECT-GROUP
FROM SNMPv2-CONF;
ipForward MODULE-IDENTITY
LAST-UPDATED "9402220000Z" -- Fri Mar 17 12:32:57 PST 1995
ORGANIZATION "IETF OSPF Working Group"
CONTACT-INFO
" Fred Baker
Postal: Cisco Systems
519 Lado Drive
Santa Barbara, California 93111
Phone: +1 805 681 0115
Email: fred@cisco.com
"
DESCRIPTION
"The MIB module for the display of CIDR multipath IP Routes."
::= { ip 24 }
ipForwardNumber OBJECT-TYPE
SYNTAX Gauge32
MAX-ACCESS read-only
STATUS obsolete
DESCRIPTION
"The number of current ipForwardTable entries
that are not invalid."
::= { ipForward 1 }
DRAFT IP Forwarding Table MIB March 1995
ipForwardTable OBJECT-TYPE
SYNTAX SEQUENCE OF IpForwardEntry
MAX-ACCESS not-accessible
STATUS obsolete
DESCRIPTION
"This entity's IP Routing table."
REFERENCE
"RFC 1213 Section 6.6, The IP Group"
::= { ipForward 2 }
ipForwardEntry OBJECT-TYPE
SYNTAX IpForwardEntry
MAX-ACCESS not-accessible
STATUS obsolete
DESCRIPTION
"A particular route to a particular destina-
tion, under a particular policy."
INDEX {
ipForwardDest,
ipForwardProto,
ipForwardPolicy,
ipForwardNextHop
}
::= { ipForwardTable 1 }
IpForwardEntry ::=
SEQUENCE {
ipForwardDest
IpAddress,
ipForwardMask
IpAddress,
ipForwardPolicy
Integer32,
ipForwardNextHop
IpAddress,
ipForwardIfIndex
Integer32,
ipForwardType
INTEGER,
ipForwardProto
INTEGER,
ipForwardAge
Integer32,
ipForwardInfo
OBJECT IDENTIFIER,
DRAFT IP Forwarding Table MIB March 1995
ipForwardNextHopAS
Integer32,
ipForwardMetric1
Integer32,
ipForwardMetric2
Integer32,
ipForwardMetric3
Integer32,
ipForwardMetric4
Integer32,
ipForwardMetric5
Integer32
}
ipForwardDest OBJECT-TYPE
SYNTAX IpAddress
MAX-ACCESS read-only
STATUS obsolete
DESCRIPTION
"The destination IP address of this route. An
entry with a value of 0.0.0.0 is considered a
default route.
This object may not take a Multicast (Class D)
address value.
Any assignment (implicit or otherwise) of an
instance of this object to a value x must be
rejected if the bitwise logical-AND of x with
the value of the corresponding instance of the
ipForwardMask object is not equal to x."
::= { ipForwardEntry 1 }
ipForwardMask OBJECT-TYPE
SYNTAX IpAddress
MAX-ACCESS read-create
STATUS obsolete
DESCRIPTION
"Indicate the mask to be logical-ANDed with the
destination address before being compared to
the value in the ipForwardDest field. For
those systems that do not support arbitrary
subnet masks, an agent constructs the value of
the ipForwardMask by reference to the IP Ad-
dress Class.
DRAFT IP Forwarding Table MIB March 1995
Any assignment (implicit or otherwise) of an
instance of this object to a value x must be
rejected if the bitwise logical-AND of x with
the value of the corresponding instance of the
ipForwardDest object is not equal to ipForward-
Dest."
DEFVAL { '00000000'h } -- 0.0.0.0
::= { ipForwardEntry 2 }
ipForwardPolicy OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-only
STATUS obsolete
DESCRIPTION
"The general set of conditions that would cause
the selection of one multipath route (set of
next hops for a given destination) is referred
to as 'policy'.
Unless the mechanism indicated by ipForwardPro-
to specifies otherwise, the policy specifier is
the IP TOS Field. The encoding of IP TOS is as
specified by the following convention. Zero
indicates the default path if no more specific
policy applies.
+-----+-----+-----+-----+-----+-----+-----+-----+
| | | |
| PRECEDENCE | TYPE OF SERVICE | 0 |
| | | |
+-----+-----+-----+-----+-----+-----+-----+-----+
IP TOS IP TOS
Field Policy Field Policy
Contents Code Contents Code
0 0 0 0 ==> 0 0 0 0 1 ==> 2
0 0 1 0 ==> 4 0 0 1 1 ==> 6
0 1 0 0 ==> 8 0 1 0 1 ==> 10
DRAFT IP Forwarding Table MIB March 1995
0 1 1 0 ==> 12 0 1 1 1 ==> 14
1 0 0 0 ==> 16 1 0 0 1 ==> 18
1 0 1 0 ==> 20 1 0 1 1 ==> 22
1 1 0 0 ==> 24 1 1 0 1 ==> 26
1 1 1 0 ==> 28 1 1 1 1 ==> 30
Protocols defining 'policy' otherwise must ei-
ther define a set of values which are valid for
this object or must implement an integer-
instanced policy table for which this object's
value acts as an index."
::= { ipForwardEntry 3 }
ipForwardNextHop OBJECT-TYPE
SYNTAX IpAddress
MAX-ACCESS read-only
STATUS obsolete
DESCRIPTION
"On remote routes, the address of the next sys-
tem en route; Otherwise, 0.0.0.0."
::= { ipForwardEntry 4 }
ipForwardIfIndex OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-create
STATUS obsolete
DESCRIPTION
"The ifIndex value which identifies the local
interface through which the next hop of this
route should be reached."
DEFVAL { 0 }
::= { ipForwardEntry 5 }
ipForwardType OBJECT-TYPE
SYNTAX INTEGER {
other (1), -- not specified by this MIB
invalid (2), -- logically deleted
local (3), -- local interface
remote (4) -- remote destination
}
MAX-ACCESS read-create
STATUS obsolete
DESCRIPTION
"The type of route. Note that local(3) refers
to a route for which the next hop is the final
DRAFT IP Forwarding Table MIB March 1995
destination; remote(4) refers to a route for
which the next hop is not the final destina-
tion.
Setting this object to the value invalid(2) has
the effect of invalidating the corresponding
entry in the ipForwardTable object. That is,
it effectively disassociates the destination
identified with said entry from the route iden-
tified with said entry. It is an
implementation-specific matter as to whether
the agent removes an invalidated entry from the
table. Accordingly, management stations must
be prepared to receive tabular information from
agents that corresponds to entries not current-
ly in use. Proper interpretation of such en-
tries requires examination of the relevant ip-
ForwardType object."
DEFVAL { invalid }
::= { ipForwardEntry 6 }
ipForwardProto OBJECT-TYPE
SYNTAX INTEGER {
other (1), -- not specified
local (2), -- local interface
netmgmt (3), -- static route
icmp (4), -- result of ICMP Redirect
-- the following are all dynamic
-- routing protocols
egp (5), -- Exterior Gateway Protocol
ggp (6), -- Gateway-Gateway Protocol
hello (7), -- FuzzBall HelloSpeak
rip (8), -- Berkeley RIP or RIP-II
is_is (9), -- Dual IS-IS
es_is (10), -- ISO 9542
ciscoIgrp (11), -- Cisco IGRP
bbnSpfIgp (12), -- BBN SPF IGP
ospf (13), -- Open Shortest Path First
bgp (14), -- Border Gateway Protocol
idpr (15) -- InterDomain Policy Routing
}
MAX-ACCESS read-only
STATUS obsolete
DESCRIPTION
DRAFT IP Forwarding Table MIB March 1995
"The routing mechanism via which this route was
learned. Inclusion of values for gateway rout-
ing protocols is not intended to imply that
hosts should support those protocols."
::= { ipForwardEntry 7 }
ipForwardAge OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-only
STATUS obsolete
DESCRIPTION
"The number of seconds since this route was
last updated or otherwise determined to be
correct. Note that no semantics of `too old'
can be implied except through knowledge of the
routing protocol by which the route was
learned."
DEFVAL { 0 }
::= { ipForwardEntry 8 }
ipForwardInfo OBJECT-TYPE
SYNTAX OBJECT IDENTIFIER
MAX-ACCESS read-create
STATUS obsolete
DESCRIPTION
"A reference to MIB definitions specific to the
particular routing protocol which is responsi-
ble for this route, as determined by the value
specified in the route's ipForwardProto value.
If this information is not present, its value
should be set to the OBJECT IDENTIFIER { 0 0 },
which is a syntactically valid object identif-
ier, and any implementation conforming to ASN.1
and the Basic Encoding Rules must be able to
generate and recognize this value."
::= { ipForwardEntry 9 }
ipForwardNextHopAS OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-create
STATUS obsolete
DESCRIPTION
"The Autonomous System Number of the Next Hop.
When this is unknown or not relevant to the
protocol indicated by ipForwardProto, zero."
DRAFT IP Forwarding Table MIB March 1995
DEFVAL { 0 }
::= { ipForwardEntry 10 }
ipForwardMetric1 OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-create
STATUS obsolete
DESCRIPTION
"The primary routing metric for this route.
The semantics of this metric are determined by
the routing-protocol specified in the route's
ipForwardProto value. If this metric is not
used, its value should be set to -1."
DEFVAL { -1 }
::= { ipForwardEntry 11 }
ipForwardMetric2 OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-create
STATUS obsolete
DESCRIPTION
"An alternate routing metric for this route.
The semantics of this metric are determined by
the routing-protocol specified in the route's
ipForwardProto value. If this metric is not
used, its value should be set to -1."
DEFVAL { -1 }
::= { ipForwardEntry 12 }
ipForwardMetric3 OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-create
STATUS obsolete
DESCRIPTION
"An alternate routing metric for this route.
The semantics of this metric are determined by
the routing-protocol specified in the route's
ipForwardProto value. If this metric is not
used, its value should be set to -1."
DEFVAL { -1 }
::= { ipForwardEntry 13 }
ipForwardMetric4 OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-create
DRAFT IP Forwarding Table MIB March 1995
STATUS obsolete
DESCRIPTION
"An alternate routing metric for this route.
The semantics of this metric are determined by
the routing-protocol specified in the route's
ipForwardProto value. If this metric is not
used, its value should be set to -1."
DEFVAL { -1 }
::= { ipForwardEntry 14 }
ipForwardMetric5 OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-create
STATUS obsolete
DESCRIPTION
"An alternate routing metric for this route.
The semantics of this metric are determined by
the routing-protocol specified in the route's
ipForwardProto value. If this metric is not
used, its value should be set to -1."
DEFVAL { -1 }
::= { ipForwardEntry 15 }
DRAFT IP Forwarding Table MIB March 1995
ipCidrRouteNumber OBJECT-TYPE
SYNTAX Gauge32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of current ipCidrRouteTable entries
that are not invalid."
::= { ipForward 3 }
ipCidrRouteTable OBJECT-TYPE
SYNTAX SEQUENCE OF IpCidrRouteEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This entity's IP Routing table."
REFERENCE
"RFC 1213 Section 6.6, The IP Group"
::= { ipForward 4 }
ipCidrRouteEntry OBJECT-TYPE
SYNTAX IpCidrRouteEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A particular route to a particular destina-
tion, under a particular policy."
INDEX {
ipCidrRouteDest,
ipCidrRouteMask,
ipCidrRouteTos,
ipCidrRouteNextHop
}
::= { ipCidrRouteTable 1 }
IpCidrRouteEntry ::=
SEQUENCE {
ipCidrRouteDest
DRAFT IP Forwarding Table MIB March 1995
IpAddress,
ipCidrRouteMask
IpAddress,
ipCidrRouteTos
Integer32,
ipCidrRouteNextHop
IpAddress,
ipCidrRouteIfIndex
Integer32,
ipCidrRouteType
INTEGER,
ipCidrRouteProto
INTEGER,
ipCidrRouteAge
Integer32,
ipCidrRouteInfo
OBJECT IDENTIFIER,
ipCidrRouteNextHopAS
Integer32,
ipCidrRouteMetric1
Integer32,
ipCidrRouteMetric2
Integer32,
ipCidrRouteMetric3
Integer32,
ipCidrRouteMetric4
Integer32,
ipCidrRouteMetric5
Integer32,
ipCidrRouteStatus
RowStatus
}
ipCidrRouteDest OBJECT-TYPE
SYNTAX IpAddress
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The destination IP address of this route.
This object may not take a Multicast (Class D)
address value.
Any assignment (implicit or otherwise) of an
instance of this object to a value x must be
DRAFT IP Forwarding Table MIB March 1995
rejected if the bitwise logical-AND of x with
the value of the corresponding instance of the
ipCidrRouteMask object is not equal to x."
::= { ipCidrRouteEntry 1 }
ipCidrRouteMask OBJECT-TYPE
SYNTAX IpAddress
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Indicate the mask to be logical-ANDed with the
destination address before being compared to
the value in the ipCidrRouteDest field. For
those systems that do not support arbitrary
subnet masks, an agent constructs the value of
the ipCidrRouteMask by reference to the IP Ad-
dress Class.
Any assignment (implicit or otherwise) of an
instance of this object to a value x must be
rejected if the bitwise logical-AND of x with
the value of the corresponding instance of the
ipCidrRouteDest object is not equal to ipCidrRoute-
Dest."
::= { ipCidrRouteEntry 2 }
ipCidrRouteTos OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The policy specifier is the IP TOS Field. The encoding
of IP TOS is as specified by the following convention.
Zero indicates the default path if no more specific
policy applies.
+-----+-----+-----+-----+-----+-----+-----+-----+
| | | |
DRAFT IP Forwarding Table MIB March 1995
| PRECEDENCE | TYPE OF SERVICE | 0 |
| | | |
+-----+-----+-----+-----+-----+-----+-----+-----+
IP TOS IP TOS
Field Policy Field Policy
Contents Code Contents Code
0 0 0 0 ==> 0 0 0 0 1 ==> 2
0 0 1 0 ==> 4 0 0 1 1 ==> 6
0 1 0 0 ==> 8 0 1 0 1 ==> 10
0 1 1 0 ==> 12 0 1 1 1 ==> 14
1 0 0 0 ==> 16 1 0 0 1 ==> 18
1 0 1 0 ==> 20 1 0 1 1 ==> 22
1 1 0 0 ==> 24 1 1 0 1 ==> 26
1 1 1 0 ==> 28 1 1 1 1 ==> 30"
::= { ipCidrRouteEntry 3 }
ipCidrRouteNextHop OBJECT-TYPE
SYNTAX IpAddress
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"On remote routes, the address of the next sys-
tem en route; Otherwise, 0.0.0.0."
::= { ipCidrRouteEntry 4 }
ipCidrRouteIfIndex OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The ifIndex value which identifies the local
interface through which the next hop of this
route should be reached."
DEFVAL { 0 }
::= { ipCidrRouteEntry 5 }
ipCidrRouteType OBJECT-TYPE
SYNTAX INTEGER {
other (1), -- not specified by this MIB
local (2), -- local interface
remote (3), -- remote destination
reject (4) -- route which discards traffic
}
MAX-ACCESS read-create
DRAFT IP Forwarding Table MIB March 1995
STATUS current
DESCRIPTION
"The type of route. Note that local(3) refers
to a route for which the next hop is the final
destination; remote(4) refers to a route for
which the next hop is not the final destina-
tion.
Routes which do not result in traffic forwarding or
rejection should not be displayed even if the
implementation keeps them stored internally.
reject refers to a route which, if matched, discards
the message as unreachable. This is used in some
protocols as a means of correctly aggregating routes."
::= { ipCidrRouteEntry 6 }
ipCidrRouteProto OBJECT-TYPE
SYNTAX INTEGER {
other (1), -- not specified
local (2), -- local interface
netmgmt (3), -- static route
icmp (4), -- result of ICMP Redirect
-- the following are all dynamic
-- routing protocols
egp (5), -- Exterior Gateway Protocol
ggp (6), -- Gateway-Gateway Protocol
hello (7), -- FuzzBall HelloSpeak
rip (8), -- Berkeley RIP or RIP-II
is_is (9), -- Dual IS-IS
es_is (10), -- ISO 9542
ciscoIgrp (11), -- Cisco IGRP
bbnSpfIgp (12), -- BBN SPF IGP
ospf (13), -- Open Shortest Path First
bgp (14), -- Border Gateway Protocol
idpr (15) -- InterDomain Policy Routing
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The routing mechanism via which this route was
learned. Inclusion of values for gateway rout-
ing protocols is not intended to imply that
hosts should support those protocols."
DRAFT IP Forwarding Table MIB March 1995
::= { ipCidrRouteEntry 7 }
ipCidrRouteAge OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of seconds since this route was
last updated or otherwise determined to be
correct. Note that no semantics of `too old'
can be implied except through knowledge of the
routing protocol by which the route was
learned."
DEFVAL { 0 }
::= { ipCidrRouteEntry 8 }
ipCidrRouteInfo OBJECT-TYPE
SYNTAX OBJECT IDENTIFIER
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"A reference to MIB definitions specific to the
particular routing protocol which is responsi-
ble for this route, as determined by the value
specified in the route's ipCidrRouteProto value.
If this information is not present, its value
should be set to the OBJECT IDENTIFIER { 0 0 },
which is a syntactically valid object identif-
ier, and any implementation conforming to ASN.1
and the Basic Encoding Rules must be able to
generate and recognize this value."
::= { ipCidrRouteEntry 9 }
ipCidrRouteNextHopAS OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The Autonomous System Number of the Next Hop.
When this is unknown or not relevant to the
protocol indicated by ipCidrRouteProto, zero."
DEFVAL { 0 }
::= { ipCidrRouteEntry 10 }
ipCidrRouteMetric1 OBJECT-TYPE
DRAFT IP Forwarding Table MIB March 1995
SYNTAX Integer32
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The primary routing metric for this route.
The semantics of this metric are determined by
the routing-protocol specified in the route's
ipCidrRouteProto value. If this metric is not
used, its value should be set to -1."
DEFVAL { -1 }
::= { ipCidrRouteEntry 11 }
ipCidrRouteMetric2 OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"An alternate routing metric for this route.
The semantics of this metric are determined by
the routing-protocol specified in the route's
ipCidrRouteProto value. If this metric is not
used, its value should be set to -1."
DEFVAL { -1 }
::= { ipCidrRouteEntry 12 }
ipCidrRouteMetric3 OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"An alternate routing metric for this route.
The semantics of this metric are determined by
the routing-protocol specified in the route's
ipCidrRouteProto value. If this metric is not
used, its value should be set to -1."
DEFVAL { -1 }
::= { ipCidrRouteEntry 13 }
ipCidrRouteMetric4 OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"An alternate routing metric for this route.
The semantics of this metric are determined by
DRAFT IP Forwarding Table MIB March 1995
the routing-protocol specified in the route's
ipCidrRouteProto value. If this metric is not
used, its value should be set to -1."
DEFVAL { -1 }
::= { ipCidrRouteEntry 14 }
ipCidrRouteMetric5 OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"An alternate routing metric for this route.
The semantics of this metric are determined by
the routing-protocol specified in the route's
ipCidrRouteProto value. If this metric is not
used, its value should be set to -1."
DEFVAL { -1 }
::= { ipCidrRouteEntry 15 }
ipCidrRouteStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The row status variable, used according to
row installation and removal conventions."
::= { ipCidrRouteEntry 16 }
DRAFT IP Forwarding Table MIB March 1995
ipForwardConformance OBJECT IDENTIFIER ::= { ipForward 5 }
ipForwardGroups OBJECT IDENTIFIER ::= { ipForwardConformance 1 }
ipForwardCompliances OBJECT IDENTIFIER ::= { ipForwardConformance 2 }
ipForwardCompliance MODULE-COMPLIANCE
STATUS current
DESCRIPTION
"The compliance statement for SNMPv2 entities
which implement the ipForward MIB."
MODULE -- this module
MANDATORY-GROUPS { ipForwardCidrRouteGroup }
GROUP ipForwardCidrRouteGroup
DESCRIPTION
"The ipForwardCidrRouteGroup group is current only for those
SNMPv2 entities which implement CIDR Routing."
::= { ipForwardCompliances 1 }
DRAFT IP Forwarding Table MIB March 1995
ipForwardMultiPathGroup OBJECT-GROUP
OBJECTS { ipForwardNumber,
ipForwardDest, ipForwardMask, ipForwardPolicy,
ipForwardNextHop, ipForwardIfIndex, ipForwardType,
ipForwardProto, ipForwardAge, ipForwardInfo,
ipForwardNextHopAS,
ipForwardMetric1, ipForwardMetric2, ipForwardMetric3,
ipForwardMetric4, ipForwardMetric5
}
STATUS obsolete
DESCRIPTION
"IP Multipath Route Table."
::= { ipForwardGroups 2 }
ipForwardCidrRouteGroup OBJECT-GROUP
OBJECTS { ipCidrRouteNumber,
ipCidrRouteDest, ipCidrRouteMask, ipCidrRouteTos,
ipCidrRouteNextHop, ipCidrRouteIfIndex, ipCidrRouteType,
ipCidrRouteProto, ipCidrRouteAge, ipCidrRouteInfo,
ipCidrRouteNextHopAS, ipCidrRouteMetric1,
ipCidrRouteMetric2, ipCidrRouteMetric3,
ipCidrRouteMetric4, ipCidrRouteMetric5, ipCidrRouteStatus
}
STATUS current
DESCRIPTION
"The CIDR Route Table."
::= { ipForwardGroups 3 }
END
DRAFT IP Forwarding Table MIB March 1995
13. Acknowledgements
This work was originally performed by the Router Requirements
Working Group at the request of the OSPF Working Group. This
update was performed under the auspices of the OSPF Working
Group. John Moy of Proteon Incorporated is the chair.
DRAFT IP Forwarding Table MIB March 1995
14. References
[1] Case, J., McCloghrie, K., Rose, M., and S. Waldbusser,
"Structure of Management Information for version 2 of the
Simple Network Management Protocol (SNMPv2)", RFC 1442,
SNMP Research, Inc., Hughes LAN Systems, Dover Beach
Consulting, Inc., Carnegie Mellon University, April 1993.
[2] Galvin, J., and K. McCloghrie, "Administrative Model for
version 2 of the Simple Network Management Protocol
(SNMPv2)", RFC 1445, Trusted Information Systems, Hughes
LAN Systems, April 1993.
[3] Case, J., McCloghrie, K., Rose, M., and S. Waldbusser,
"Protocol Operations for version 2 of the Simple Network
Management Protocol (SNMPv2)", RFC 1448, SNMP Research,
Inc., Hughes LAN Systems, Dover Beach Consulting, Inc.,
Carnegie Mellon University, April 1993.
[4] McCloghrie, K., and M. Rose, "Management Information Base
for Network Management of TCP/IP-based internets - MIB-
II", STD 17, RFC 1213, Hughes LAN Systems, Performance
Systems International, March 1991.
[5] Postel, J., "Internet Protocol", STD 5, RFC 791,
USC/Information Sciences Institute, September 1981.
[6] Case, J., McCloghrie, K., Rose, M., and S. Waldbusser,
"Textual Conventions for version 2 of the Simple Network
Management Protocol (SNMPv2)", RFC 1443, SNMP Research,
Inc., Hughes LAN Systems, Dover Beach Consulting, Inc.,
Carnegie Mellon University, April 1993.
[7] Fred Baker, "IP Forwarding Table MIB", Request for
Comments 1354, (July 1992).
DRAFT IP Forwarding Table MIB March 1995
15. Security Considerations
Security is an objective not in this MIB view.
16. Author's Address
Fred Baker
Cisco Systems
519 Lado Drive
Santa Barbara, California 93111
Phone: +1 805 681 0115
Email: fred@cisco.com
DRAFT IP Forwarding Table MIB March 1995
Table of Contents
9 Introduction .......................................... 28
10 The SNMPv2 Network Management Framework .............. 29
10.1 Object Definitions ................................. 29
11 Overview ............................................. 30
12 Definitions .......................................... 31
13 Acknowledgements ..................................... 50
14 References ........................................... 51
15 Security Considerations .............................. 52
16 Author's Address ..................................... 52
 End of changes. 

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