Penetration Testing mailing list archives
RE: TCP Header manipulation of the protocol field
From: "Rob Shein" <shoten () starpower net>
Date: Wed, 4 Feb 2004 18:38:13 -0500
I want to clarify something...are you checking to see if filtering is taking place within the VPN link in ESP? Or are you checking to see if ESP itself is being blocked? Because if the second is true, you're not looking to do anything with TCP at all; ESP is a different protocol from TCP.
-----Original Message----- From: Michael Burns [mailto:mburns () sp-uk com] Sent: Friday, January 30, 2004 11:09 AM To: pen-test () securityfocus com Subject: TCP Header manipulation of the protocol field 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 ********************************************************************** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This footnote also confirms that this email message has been swept by MIMEsweeper for the presence of computer viruses.
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Current thread:
- RE: TCP Header manipulation of the protocol field Michael Burns (Feb 02)
- <Possible follow-ups>
- Re: TCP Header manipulation of the protocol field Philippe Biondi (Feb 02)
- RE: TCP Header manipulation of the protocol field Michael Burns (Feb 05)
- RE: TCP Header manipulation of the protocol field ucanBbreached (Feb 05)
- RE: TCP Header manipulation of the protocol field Rob Shein (Feb 05)