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IPCOMP and IPSEC

To: ippcp@external.cisco.com, ipsec@tis.com
Subject: IPCOMP and IPSEC
From: Stephen Waters <Stephen.Waters@digital.com>
Date: Wed, 27 May 1998 23:19:08 +0100
Sender: owner-ipsec@ex.tis.com


Is IPCOMP restricted for use by Hosts (at packet origin), or can it be
appended by a Security Gateway as part of the process of adding an IPSEC
tunnel header?

e.g.

Original host packet [IP1][TCP][data]

After passing through a security gateway/IP tunnel:

[IP2][ESP][IPCOMP][IP1][TCP][data][padding/next protocol][ESP auth]


If this is supported, is it detailed anywhere?  For example, if an
Explicit IV is used, would it come after the ESP header or after the
IPCOMP header?





Stephen Waters
DEVON, UK

National: 01548 551012 / 550474
International: 44 1548 551012 / 550474
Stephen.Waters@Digital.com

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