Snort mailing list archives
RE: variable problem
From: "adam.w.hogan" <adam.w.hogan () delphi com>
Date: Mon, 16 Jun 2003 13:32:26 -0400
Do you mean 10.5 and 10.6 each as the entire class B? If so then try setting it to: $EXTERNAL_NET ![10.5.0.0/16,10.6.0.0/16] 16 is the CIDR switch for a class B (65536 hosts), 24 makes it a class C (256 hosts). I /think/ this would as well, but I'd check first: $EXTERNAL_NET !10.5.0.0/15 -adam. -----Original Message----- From: Brian Hughes [mailto:brian.hughes () ptk org] Sent: Monday, June 16, 2003 12:28 PM To: snort-users () lists sourceforge net Subject: [Snort-users] variable problem Hi, First I would like to say thank you in advance for any replies. I'm having a problem with the EXTERNAL_NET variable. We have two networks 10.5 and 10.6 Right now the IDS machine is listening for all traffic coming into the 10.6 network. I'm trying to set things up so that Snort will only alert for traffic coming into 10.6 from outside 10.6 and 10.5. Here is how I have my snort.conf variables defined. HOME_NET 10.6.0.0/24 EXTERNAL_NET [!10.6.0.0/24,!10.5.0.0/24] (I also tried setting it to ![10.6.0.0/24,10.5.0.0/24] but it didn't work either). From looking through the archives I was thinking this would work, but it is still showing alerts being triggered by machines in the 10.6 network with destinations of the 10.5 network. The only signature it is doing this for is the spp_portscan2 alert. Any help would be greatly appreciated. Brian Hughes. ------------------------------------------------------- This SF.NET email is sponsored by: eBay Great deals on office technology -- on eBay now! Click here: http://adfarm.mediaplex.com/ad/ck/711-11697-6916-5 _______________________________________________ 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 ------------------------------------------------------- This SF.NET email is sponsored by: eBay Great deals on office technology -- on eBay now! Click here: http://adfarm.mediaplex.com/ad/ck/711-11697-6916-5 _______________________________________________ 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:
- variable problem Brian Hughes (Jun 16)
- Re: variable problem Erek Adams (Jun 16)
- RE: variable problem Jim Cervantes (Jun 16)
- RE: variable problem Erek Adams (Jun 17)
- Re: variable problem Matt Kettler (Jun 17)
- RE: variable problem Jim Cervantes (Jun 16)
- <Possible follow-ups>
- RE: variable problem adam.w.hogan (Jun 16)
- RE: variable problem Brian Hughes (Jun 17)
- Re: variable problem Erek Adams (Jun 16)