[4990] in North American Network Operators' Group

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Re: TCP SYN attacks

daemon@ATHENA.MIT.EDU (Perry E. Metzger)
Thu Oct 3 18:41:29 1996

To: Richard Stiennon <richards@netrex.com>
cc: nanog@merit.edu, iepg@iepg.org
In-reply-to: Your message of "Thu, 03 Oct 1996 16:01:43 EDT."
             <3.0b28.32.19961003160142.0073c860@trex.netrex.com> 
Reply-To: perry@piermont.com
Date: Thu, 03 Oct 1996 18:35:46 -0400
From: "Perry E. Metzger" <perry@piermont.com>


Richard Stiennon writes:
> Check out the elegant solution just announced by Checkpoint:
> 
> http://www.checkpoint.com/fw21/syndefender/syndefender-white.html
> 
> This is a firewall solution. I like the psuedo-NAT done to adjust sequence
> number.

I'm not fond of this class of solution. I'll also point out that it
appears that kernel fixes almost completely alleviate the problem.

Perry

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