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TCP Header manipulation of the protocol field
From: "Michael Burns" <mburns () sp-uk com>
Date: Fri, 30 Jan 2004 16:08:32 -0000

Hi Guys,

Sorry for this kind of request (well not really, not if I get the
answer). I need to manipulate the protocol field of a TCP session to
test for IP protocol filtering across a non-managed link. This is
predominantly to help test/prove filtering in place when running ESP.

I simply need to get a pointer to somewhere to look up as I've hit a
brick wall at the minute.

Predominantly the test environment will be from Windows platforms but
can also be from Linux.



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