Re: IP Address's in Rule

[Erek Adams <erek () theadamsfamily net>]

On Wed, 9 Oct 2002, Mike McCabe wrote:

> How do I include specific IP addresses in a rule.  Say I want to have
> certain IP addresses not looked at and still want the rule to use
> EXTERNAL_NET...  Something like:
>
> alert tcp [!X.Y.W.Z/32,!A.B.C.D/32,!E.F.G.H/32,$EXTERNAL_NET] any ->
> $HOME_NET 53 (msg:"DNS zone transfer"; content: "|00 00 FC|"; flags: A+;
> offset: 13; reference:arachnids,212; classtype:attempted-recon; sid:255;
> rev:2;)
>
> But it doesn't seem to work...
>
> Any help would be appreciated...

If I'm correct about what you're trying to do:  2 machines in $EXTERNAL_NET
will connect do a zone transfer from some machines inside your $HOME_NET.  You
want to ignore those packets from those machines, but still alert on anyone
else.   Is that right?

If it is, then this link[0] should tell you what you need.  :)

Cheers!

-----
Erek Adams
Nifty-Type-Guy
TheAdamsFamily.Net


[0]     http://www.theadamsfamily.net/~erek/snort/ignore.txt



-------------------------------------------------------
This sf.net email is sponsored by:ThinkGeek
Welcome to geek heaven.
http://thinkgeek.com/sf
_______________________________________________
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