The Generalized TTL Security Mechanism (GTSM) for the Label Distribution Protocol (LDP)

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Publisher: IETF
Doc Type: Standard
Pages: 8
Abstract: The Generalized TTL Security Mechanism (GTSM) describes a generalized use of a packet's Time to Live (TTL) (IPv4) or Hop Limit (IPv6) to verify that the packet was sourced by a node on a connected link, thereby protecting the router\'s IP control plane from CPU utilization-based attacks. This technique improves security and is used by many protocols. This document defines the GTSM use for the Label Distribution Protocol (LDP). This specification uses a bit reserved in RFC 5036 and therefore updates RFC 5036. [STANDARDS-TRACK]
Publication Date: 2012-08-01
Status Note: Proposed Standard
DOI: 10.17487/RFC6720
Link: https://doi.org/10.17487/RFC6720
Author(s): Carlos Pignataro
Rajiv Asati
Keyword(s): GTSM, LDP

Latest version of IETF RFC 6720

Document Versions — IETF RFC 6720

▶ IETF RFC 6720 (2012-08-01)

THIS DOC [ACTIVE] [LATEST VERSION]

Amended by:

IETF RFC 7552 [Active*]

Normative Reference(s)

IETF RFC 2119 [Active*]
IETF RFC 5036 [Active*]
IETF RFC 5082 [Active*]

Bibliographic Reference(s)

Asati, R., Manral, V., Papneja, R., and C. Pignataro, "Updates to LDP for IPv6", Work in Progress, June 2012. EXTERNAL
Cisco Systems, Inc., "MPLS LDP Session Protection", < http://www.cisco.com/en/US/docs/ios-xml/ios/mp_ldp/ configuration/12-4m/mp-ldp-sessn-prot.html >. EXTERNAL
RFC5443 — RFC5443 EXTERNAL
IETF RFC 5925 [Active*]

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IETF RFC 6720, The Generalized TTL Security Mechanism (GTSM) for the Label Distribution Protocol (LDP). Available at https://doi.org/10.17487/RFC6720

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IETF RFC 6720, The Generalized TTL Security Mechanism (GTSM) for the Label Distribution Protocol (LDP). Available at https://doi.org/10.17487/RFC6720

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IETF RFC 6720, The Generalized TTL Security Mechanism (GTSM) for the Label Distribution Protocol (LDP). Available at https://doi.org/10.17487/RFC6720

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<span class="citation"><cite>IETF RFC 6720</cite>, The Generalized TTL Security Mechanism (GTSM) for the Label Distribution Protocol (LDP). Available at <a href="https://doi.org/10.17487/RFC6720" target="_blank" rel="noopener">https://doi.org/10.17487/RFC6720</a></span>

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IETF RFC 6720, The Generalized TTL Security Mechanism (GTSM) for the Label Distribution Protocol (LDP)
doi: 10.17487/RFC6720
url: https://doi.org/10.17487/RFC6720

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<li>
<cite id="bib-rfc6720">IETF RFC 6720</cite>, The Generalized TTL Security Mechanism (GTSM) for the Label Distribution Protocol (LDP)
<span class="doi">10.17487/RFC6720</span>
</li>

Referenced By

IETF RFC 7552 [Active*]