{"draft":"draft-simpson-icmp-ipsec-fail-02","doc_id":"RFC2521","title":" ICMP Security Failures Messages ","authors":["P. Karn","W. Simpson"],"format":["ASCII","HTML"],"page_count":"9","pub_status":"EXPERIMENTAL","status":"EXPERIMENTAL","source":"Legacy","abstract":" This document specifies ICMP messages for indicating failures when using IP Security Protocols (AH and ESP). This document defines an Experimental Protocol for the Internet community.  ","pub_date":"February 1999","keywords":["ICMP-SEC","internet control message protocol","ip","security"],"obsoletes":[],"obsoleted_by":[],"updates":[],"updated_by":[],"see_also":[],"doi":"10.17487\/RFC2521","errata_url":null}