@misc{rfc6720,
    series =    {Request for Comments},
    number =    6720,
    howpublished =  {RFC 6720},
    publisher = {RFC Editor},
    doi =       {10.17487/RFC6720},
    url =       {https://www.rfc-editor.org/info/rfc6720},
    author =    {Carlos Pignataro and Rajiv Asati},
    title =     {{The Generalized TTL Security Mechanism (GTSM) for the Label Distribution Protocol (LDP)}},
    pagetotal = 8,
    year =      2012,
    month =     aug,
    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\textbackslash{}'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{]}},
}