Snort mailing list archives
Re: why old libnet?
From: Matt Kettler <mkettler () evi-inc com>
Date: Mon, 28 Mar 2005 12:16:17 -0500
Florin Andrei wrote:
What is the reason why Snort can only use the old, deprecated, libnet-1.0.x? Since other apps are likely to use already the newer, supported, libnet-1.1, there might be conflicts on systems using both types of apps.
Really, the only part of snort that uses libnet is flexresp. If you're not using flexresp, snort shouldn't be looking for libnet. As for flexresp itself, it's getting to be a bit on the "aged" side. I know one of the SF guys (Chris? Jeff?) was working on a "flexresp2", but it looks like 2.3.2 still only includes the old version. I also think that while Flexresp is useful, people believe it to be more useful than it is. Flexresp is really pretty limited. It's useful against automated probes, but really only acts as a hurdle to jump over for a skilled manual attack. Even against automated probes, flexresp isn't 100% effective, since it relies on being able to advance the TCP sequence number first. Flexresp uses some tricks to give it a major advantage, but it still boils down to being a race condition. Now that snort has an official inline module, you really should consider using it instead of flexresp if inline is feasible in your network and on your platform. ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click _______________________________________________ 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:
- why old libnet? Florin Andrei (Mar 27)
- Re: why old libnet? Matt Kettler (Mar 28)
- Re: why old libnet? Florin Andrei (Mar 28)
- Re: why old libnet? Matt Kettler (Mar 28)
- Re: why old libnet? Jeremy Hewlett (Mar 29)
- RE: why old libnet? Eric Hines (Mar 30)
- Re: why old libnet? Jeff Nathan (Mar 31)
- Re: why old libnet? Florin Andrei (Mar 28)
- Re: why old libnet? Matt Kettler (Mar 28)
- <Possible follow-ups>
- RE: why old libnet? Ron Jenkins (Mar 28)
- RE: why old libnet? Joshua Berry (Mar 28)
- Re: why old libnet? Matt Kettler (Mar 28)
- Re: why old libnet? Will Metcalf (Mar 28)
- Re: why old libnet? Matt Kettler (Mar 28)