draft-ietf-intarea-gre-ipv6-01.txt   draft-ietf-intarea-gre-ipv6-02.txt 
Intarea Working Group C. Pignataro Intarea Working Group C. Pignataro
Internet-Draft Cisco Systems Internet-Draft Cisco Systems
Updates: 2784 (if approved) R. Bonica Updates: 2784 (if approved) R. Bonica
Intended status: Standards Track Juniper Networks Intended status: Standards Track Juniper Networks
Expires: August 10, 2015 S. Krishnan Expires: August 10, 2015 S. Krishnan
Ericsson Ericsson
February 06, 2015 February 06, 2015
IPv6 Support for Generic Routing Encapsulation (GRE) IPv6 Support for Generic Routing Encapsulation (GRE)
draft-ietf-intarea-gre-ipv6-01 draft-ietf-intarea-gre-ipv6-02
Abstract Abstract
Generic Routing Encapsulation (GRE) can be used to carry any network- Generic Routing Encapsulation (GRE) can be used to carry any network-
layer payload protocol over any network-layer delivery protocol. GRE layer payload protocol over any network-layer delivery protocol. GRE
procedures are specified for IPv4, used as either the payload or procedures are specified for IPv4, used as either the payload or
delivery protocol. However, GRE procedures are not specified for delivery protocol. However, GRE procedures are not specified for
IPv6. IPv6.
This document specifies GRE procedures for IPv6, used as either the This document specifies GRE procedures for IPv6, used as either the
skipping to change at page 2, line 47 skipping to change at page 2, line 47
1. Introduction 1. Introduction
Generic Routing Encapsulation (GRE) [RFC2784] [RFC2890] can be used Generic Routing Encapsulation (GRE) [RFC2784] [RFC2890] can be used
to carry any network-layer payload protocol over any network-layer to carry any network-layer payload protocol over any network-layer
delivery protocol. GRE procedures are specified for IPv4 [RFC0791], delivery protocol. GRE procedures are specified for IPv4 [RFC0791],
used as either the payload or delivery protocol. However, GRE used as either the payload or delivery protocol. However, GRE
procedures are not specified for IPv6 [RFC2460]. procedures are not specified for IPv6 [RFC2460].
This document specifies GRE procedures for IPv6, used as either the This document specifies GRE procedures for IPv6, used as either the
payload or delivery protocol. It updates RFC 2784 [RFC2784]. Like payload or delivery protocol. It updates RFC 2784 [RFC2784]. Like
RFC 2784, this specification describes GRE how GRE has been RFC 2784, this specification describes GRE how has been implemented
implemented for IPv6 by several vendors. by several vendors.
1.1. Terminology 1.1. Terminology
The following terms are specific to GRE and are taken from [RFC2784]: The following terms are specific to GRE and are taken from [RFC2784]:
o GRE delivery header - an IPv4 or IPv6 header whose source address o GRE delivery header - an IPv4 or IPv6 header whose source address
represents the GRE ingress node and whose destination address represents the GRE ingress node and whose destination address
represents the GRE egress node. The GRE delivery header represents the GRE egress node. The GRE delivery header
encapsulates a GRE header. encapsulates a GRE header.
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