Snort mailing list archives
Re: detecting tunnels with Snort
From: "Tom Le" <dottom () gmail com>
Date: Mon, 6 Mar 2006 19:39:54 -0800
This is assuming you could discern the packet size of the encapsulated traffic...
Example: a tunnel on udp port 53 SHOULD NOT HAVE A PACKER LARGER THAN
254 BYTES, as the dns rfc's on the dns query that is associated with that port should mark 'large packet', if query answer is larger than 254 ------------------------------------------------------- This SF.Net email is sponsored by xPML, a groundbreaking scripting language that extends applications into web and mobile media. Attend the live webcast and join the prime developer group breaking into this new coding territory! http://sel.as-us.falkag.net/sel?cmd=lnk&kid0944&bid$1720&dat1642 _______________________________________________ Snort-users mailing list Snort-users () lists sourceforge net Go to this URL to change user options or unsubscribe: https://lists.sourceforge.net/lists/listinfo/snort-users Snort-users list archive: http://www.geocrawler.com/redir-sf.php3?list=snort-users
Current thread:
- detecting tunnels with Snort Radu Spineanu (Mar 05)
- <Possible follow-ups>
- RE: detecting tunnels with Snort Michael Scheidell (Mar 06)
- Re: detecting tunnels with Snort Tom Le (Mar 06)
- RE: Re: detecting tunnels with Snort Michael Scheidell (Mar 07)
- Re: Re: detecting tunnels with Snort Tom Le (Mar 07)