Re: Rule to exclude a specific IP in Snort

["Nordwall, Douglas J" <doug () pnl gov>]

This should work, assuming that the sig you are looking at comes from gen_id
2. I'm not a snort expert by any means, but as I understand it, gen_is
refers to where the alert is coming from, not so much a sequence number.

Try changing the second to gen_id 1 and see if it works.

On 10/16/03 4:34 AM, "grant" <grant () macaulayconsultants co uk> wrote:

> I am trying to create an exclusion list for multiply machines and rules. I
> have created a file called whiteSRC.txt and included this in my snort.conf, I
> can get it to work with one machine. I am having difficulty with multiply
> entries. Is there any information or documentation I can get anywhere?
>
> suppress gen_id 1, sig_id 409, track by_src, ip 172.30.234.56    This line
> works fine!
> suppress gen_id 2, sig_id 1419, track by_dst, ip 172.28.71.60    Is this
> right? I made this up!!
>
> Thanks
>
> Grant Macaulay
>
> Hey Chris,
>
> What does the different part of that instruction mean?:
>
> suppress
> gen_id 1,         <-- what does this mean?
> sig_id 527,
> track by_src,    <-- And this?
> ip 192.168.10.37
>
> Thanks
>
> Juan M. Rivera Rivera
> IT Director
> American University of P.R.
>
> -----Original Message-----
> From: Chris Green [mailto:cmg () sourcefire com]
> Sent: Thursday, October 09, 2003 9:28 AM
> To: Juan M. Rivera
> Cc: Snort Users List
> Subject: Re: [Snort-users] Rule to exclude a specific IP in Snort
>
> "Juan M. Rivera" <jrivera () aupr edu> writes:
>
> > I'm trying to modify the following Snort Rule:
> >
> > Alert ip any any -> any any (msg:"BAD-TRAFFIC same SCR/DST"; sameip;
> > reference:cve,CVE-1999-0016;
> > reference:url,www.cert.org/advisories/CA-1997-28.html;
> > classtype:bad-unknown; sid:527; rev:4;)
> >
> > I'm getting an alert on just one ip address and I know what the problem
> is.
> > So I'm trying to modify this rule so that it takes into account any
> internal
> > ip address except 192.168.10.37.
>
> Don't bother with changing the rule anymore for handling that case.
>
> suppress gen_id 1, sig_id 527, track by_src, ip 192.168.10.37
>
> in snort 2.0.2.
> --
> Chris Green <cmg () sourcefire com>
> Warning: time of day goes back, taking countermeasures.
>
>
>
> -------------------------------------------------------
> This SF.net email is sponsored by: SF.net Giveback Program.
> SourceForge.net hosts over 70,000 Open Source Projects.
> See the people who have HELPED US provide better services:
> Click here: http://sourceforge.net/supporters.php
> _______________________________________________
> 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
>
> N?
!@??@zf????h??+y??    ?
????r
> @??+j`J??q?h????@??-?
/z?;?
> 4??zp???x?7???I????)??0??!j??B?0H
k???x????'??'$?x!??@??(??~?
> ?x    ??.??+????iJz+??z?????x?+-Jz+??z?
> ?+-?(??~??x    ?
????
DK?r???.?????b?{??.?œ???m???i???+-?(??~??x
??b
> ????+-?w?????.???Jz+??z??+-
??+?m????0?r?????r????b??i?    b?,??????

-- 




-------------------------------------------------------
This SF.net email sponsored by: Enterprise Linux Forum Conference & Expo
The Event For Linux Datacenter Solutions & Strategies in The Enterprise
Linux in the Boardroom; in the Front Office; & in the Server Room
http://www.enterpriselinuxforum.com
_______________________________________________
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