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IETF RFC 6178
[ACTIVE]

Label Edge Router Forwarding of IPv4 Option Packets

Metadata

Publisher
IETF
Doc Type
Standard
Pages
9
Abstract
This document specifies how Label Edge Routers (LERs) should behave when determining whether to MPLS encapsulate an IPv4 packet with header options. Lack of a formal standard has resulted in different LER forwarding behaviors for IPv4 packets with header options despite being associated with a prefix-based Forwarding Equivalence Class (FEC). IPv4 option packets that belong to a prefix-based FEC, yet are forwarded into an IPv4/MPLS network without being MPLS- encapsulated, present a security risk against the MPLS infrastructure. Further, LERs that are unable to MPLS encapsulate IPv4 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. [STANDARDS-TRACK]
Publication Date
2011-03-01
Status Note
Proposed Standard
DOI
10.17487/RFC6178
Link
https://doi.org/10.17487/RFC6178
Author(s)
David Smith
John Mullooly
William Jaeger
Tom Scholl
Keyword(s)
Forward Error Correction, MPLS, LER, Security, DoS
Latest version of IETF RFC 6178

Document Versions — IETF RFC 6178

  • ▶ IETF RFC 6178 (2011-03-01)
    THIS DOC [ACTIVE] [LATEST VERSION]

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IETF RFC 6178, Label Edge Router Forwarding of IPv4 Option Packets. Available at https://doi.org/10.17487/RFC6178
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IETF RFC 6178, Label Edge Router Forwarding of IPv4 Option Packets. Available at https://doi.org/10.17487/RFC6178

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IETF RFC 6178, Label Edge Router Forwarding of IPv4 Option Packets. Available at https://doi.org/10.17487/RFC6178
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<span class="citation"><cite>IETF RFC 6178</cite>, Label Edge Router Forwarding of IPv4 Option Packets. Available at <a href="https://doi.org/10.17487/RFC6178" target="_blank" rel="noopener">https://doi.org/10.17487/RFC6178</a></span>

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IETF RFC 6178, Label Edge Router Forwarding of IPv4 Option Packets
doi: 10.17487/RFC6178
url: https://doi.org/10.17487/RFC6178
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<cite id="bib-rfc6178">IETF RFC 6178</cite>, Label Edge Router Forwarding of IPv4 Option Packets
<span class="doi">10.17487/RFC6178</span>
</li>

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