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RFC 5879
Title: Heuristics for Detecting ESP-NULL Packets
Author: T. Kivinen, D. McDonald
Status: Informational
Stream: IETF
Date: May 2010
Mailbox: kivinen@iki.fi,
danmcd@opensolaris.org
Pages: 32
Characters: 72917
Updates/Obsoletes/SeeAlso: None
I-D Tag: draft-ietf-ipsecme-esp-null-heuristics-07.txt
URL: http://www.rfc-editor.org/rfc/rfc5879.txt
This document describes a set of heuristics for distinguishing IPsec
ESP-NULL (Encapsulating Security Payload without encryption) packets
from encrypted ESP packets. These heuristics can be used on
intermediate devices, like traffic analyzers, and deep-inspection
engines, to quickly decide whether or not a given packet flow is
encrypted, i.e., whether or not it can be inspected. Use of these
heuristics does not require any changes made on existing IPsec hosts
that are compliant with RFC 4303. This document is not an Internet
Standards Track specification; it is published for informational
purposes.
This document is a product of the IP Security Maintenance and Extensions Working Group of the IETF.
INFORMATIONAL: This memo provides information for the Internet community.
It does not specify an Internet standard of any kind. Distribution of
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