{"draft":"draft-ietf-mpls-ldp-gtsm-09","doc_id":"RFC6720","title":"The Generalized TTL Security Mechanism (GTSM) for the Label Distribution Protocol (LDP)","authors":["C. Pignataro","R. Asati"],"format":["ASCII","HTML"],"page_count":"8","pub_status":"PROPOSED STANDARD","status":"PROPOSED STANDARD","source":"Multiprotocol Label Switching","abstract":"The Generalized TTL Security Mechanism (GTSM) describes a generalized\r\nuse of a packet's Time to Live (TTL) (IPv4) or Hop Limit (IPv6) to\r\nverify that the packet was sourced by a node on a connected link,\r\nthereby protecting the router\\'s IP control plane from CPU\r\nutilization-based attacks.  This technique improves security and is\r\nused by many protocols.  This document defines the GTSM use for the\r\nLabel Distribution Protocol (LDP).\r\n\r\nThis specification uses a bit reserved in RFC 5036 and therefore\r\nupdates RFC 5036.  [STANDARDS-TRACK]","pub_date":"August 2012","keywords":["[--------]","GTSM","LDP"],"obsoletes":[],"obsoleted_by":[],"updates":["RFC5036"],"updated_by":["RFC7552"],"see_also":[],"doi":"10.17487\/RFC6720","errata_url":null}