[mpls] I-D Action:draft-ietf-mpls-ip-options-06.txt

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A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Multiprotocol Label Switching Working Group of the IETF.


	Title           : Requirements for Label Edge Router Forwarding of IPv4 Option Packets
	Author(s)       : W. Jaeger, et al.
	Filename        : draft-ietf-mpls-ip-options-06.txt
	Pages           : 10
	Date            : 2010-12-15

This document specifies how Label Edge Routers (LER) should behave
when determining whether to MPLS encapsulate an IP packet with header
options.  Lack of a formal standard has resulted in different LER
forwarding behaviors for IP packets with header options despite being
associated with a prefix-based Forwarding Equivalence Class (FEC).
IP option packets that belong to a prefix-based FEC, yet are
forwarded into an IP/MPLS network without being MPLS-encapsulated,
present a security risk against the MPLS infrastructure.  Further,
LERs that are unable to MPLS encapsulate IP packets with header
options cannot operate in certain MPLS environments.  While this
newly defined LER behavior is mandatory to implement, it is optional
to invoke.

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