Snort mailing list archives
heavily switched networks
From: Russell Fulton <r.fulton () auckland ac nz>
Date: Thu, 25 Dec 2003 10:32:02 +1300
Message: 1 From: Stewart Larsen <slarsen42 () cfl rr com> To: snort-users () lists sourceforge net Date: Tue, 23 Dec 2003 21:38:33 -0500 Subject: [Snort-users] heavily switched networks I've looked into this ad can't seem to find an answer I like. Perhaps I'm asking the wrong question. Suppose I have a network consisting of a gateway which goes into a firewall. The connection from the firewall goes into a switch which leads to another level of switches. some of these machines are servers, some are workstations. None of the switches have port mirroring (SPAN ports).
Without port mirroring you are pretty well stuffed :( Your best bet is probably to run snort on each of your servers but the additional CPU load may not be acceptable. Long term, persuade your company to invest in network infrastructure that facilitates monitoring, eg switches with multiple span ports. They are not that much more expensive. -- Russell Fulton /~\ The ASCII Network Security Officer \ / Ribbon Campaign The University of Auckland X Against HTML New Zealand / \ Email! ------------------------------------------------------- This SF.net email is sponsored by: IBM Linux Tutorials. Become an expert in LINUX or just sharpen your skills. Sign up for IBM's Free Linux Tutorials. Learn everything from the bash shell to sys admin. Click now! http://ads.osdn.com/?ad_id=1278&alloc_id=3371&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:
- heavily switched networks Stewart Larsen (Dec 23)
- Re: heavily switched networks twig les (Dec 23)
- Re: heavily switched networks Stewart Larsen (Dec 24)
- Re: heavily switched networks Erek Adams (Dec 24)
- Re: heavily switched networks Stewart Larsen (Dec 24)
- Re: heavily switched networks Erek Adams (Dec 24)
- Re: heavily switched networks twig les (Dec 24)
- Re: heavily switched networks Stewart Larsen (Dec 24)
- Re: heavily switched networks twig les (Dec 23)
- <Possible follow-ups>
- heavily switched networks Russell Fulton (Dec 24)