Snort mailing list archives
Re: Snort and network taps
From: Jeff Nathan <jeff () snort org>
Date: Tue, 23 Apr 2002 16:59:42 -0700
Jason Haar wrote:
I am finding this discussion on taps a real eye-opener - having never used them before myself. I'm a bit confused about what's going on. Why is everyone talking about two taps? A tap acts like a 2-port hub with one port "broken" (i.e. read-only) - so one tap would see all traffic going to and from the box you are monitoring wouldn't it? What have I missed? Someone paint me a picture? ;-) -- Cheers Jason Haar Information Security Manager Trimble Navigation Ltd. Phone: +64 3 9635 377 Fax: +64 3 9635 417
Taps are designed to be used with analyzers. The transmit pair from each side of a connection is broken out into it's own port. These two tap ports then need to be recombined for snort. Remind me after CanSecWest and I will put up the drawings I made as part of the presentation Brian and I are doing. They will help clarify the use of taps. -Jeff -- http://jeff.wwti.com (pgp key available) "Common sense is the collection of prejudices acquired by age eighteen." - Albert Einstein _______________________________________________ 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:
- Snort and network taps counter . spy (Apr 23)
- Re: Snort and network taps Chris Green (Apr 23)
- Re: Snort and network taps Jeff Nathan (Apr 23)
- Re: Snort and network taps Jason Haar (Apr 23)
- Re: Snort and network taps Jeff Nathan (Apr 23)
- Re: Snort and network taps Jason Haar (Apr 23)
- Re: Snort and network taps Jason Haar (Apr 23)
- <Possible follow-ups>
- RE: Snort and network taps Wirth, Jeff (Apr 23)
- RE: Snort and network taps Fuchs Bernhard (Apr 24)