TCP Header manipulation of the protocol field

From: Michael Burns (mburns@sp-uk.com)
Date: Fri Jan 30 2004 - 11:08:32 EST


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.

Cheers,

Mike

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