Protocol Action: 'Label Edge Router Forwarding of IPv4 Option Packets' to Proposed Standard (draft-ietf-mpls-ip-options-07.txt)
The IESG <iesg-secretary@ietf.org> Mon, 03 January 2011 15:05 UTC
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From: The IESG <iesg-secretary@ietf.org>
To: IETF-Announce <ietf-announce@ietf.org>
Subject: Protocol Action: 'Label Edge Router Forwarding of IPv4 Option Packets' to Proposed Standard (draft-ietf-mpls-ip-options-07.txt)
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Date: Mon, 03 Jan 2011 07:05:32 -0800
Cc: mpls mailing list <mpls@ietf.org>, mpls chair <mpls-chairs@tools.ietf.org>, Internet Architecture Board <iab@iab.org>, RFC Editor <rfc-editor@rfc-editor.org>
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The IESG has approved the following document: - 'Label Edge Router Forwarding of IPv4 Option Packets' (draft-ietf-mpls-ip-options-07.txt) as a Proposed Standard This document is the product of the Multiprotocol Label Switching Working Group. The IESG contact persons are Adrian Farrel and Stewart Bryant. A URL of this Internet Draft is: http://datatracker.ietf.org/doc/draft-ietf-mpls-ip-options/ Technical Summary Requirements for Label Edge Router Forwarding of IPv4 Option Packets 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 but fail to be MPLS encapsulated simply due to their header options 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. Working Group Summary Nothing worth noting, except that there was some discussion of whether this should go forward as an informational draft. The WG consensus was to have it on the Standards track. Further details of this dicussion can be seen in the proto write-up. Document Quality This is not a protocol extension but implementations of the described mechanism may exist. The document quality is good as well as the review. Personnel George Swallow is the Document Shepherd Adrian Farrel is the responsible Area Director