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Date:      Thu, 22 Feb 2001 10:05:28 -0800
From:      Lars Eggert <larse@ISI.EDU>
To:        itojun@iijlab.net
Cc:        Kris Kennaway <kris@obsecurity.org>, Stephen Cimarelli <stephen@clari.net.au>, freebsd-net@freebsd.org
Subject:   Re: Help with IPSEC
Message-ID:  <3A9554E8.D2F6FE2E@isi.edu>
References:  <23476.982825724@coconut.itojun.org>

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itojun@iijlab.net wrote:
>         you can create a similar packet by using IPsec transport mode against
>         gif-encapsulated packet, however, it does not look exactly the same.
>         if the other end is picky about packet format, they may drop it
>         because it does not conform to RFC2401.

Our ID "Use of IPSEC Transport Mode for Virtual Networks" has more
information on this:
ftp://ftp.isi.edu/internet-drafts/draft-touch-ipsec-vpn-01.txt
-- 
Lars Eggert <larse@isi.edu>                 Information Sciences Institute
http://www.isi.edu/larse/                University of Southern California
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