Re: Will this work - negated hosts?

["Weir, Jason" <jason.weir () nhrs org>]

> -----Original Message-----
> From: Crook, Parker [mailto:Parker_Crook () reyrey com] 
> Sent: Tuesday, October 26, 2010 11:02 AM
> To: Weir, Jason; snort-users () lists sourceforge net
> Subject: RE: Will this work - negated hosts?
>
>
> > -----Original Message-----
> > From: Weir, Jason [mailto:jason.weir () nhrs org]
> > Sent: Tuesday, October 26, 2010 10:50 AM
> > To: snort-users () lists sourceforge net
> > Subject: [Snort-users] Will this work - negated hosts?
> >
> > var HOME_NET [192.168.1.0/22,192.168.2.0/24]
> >
> > var DNS_SERVERS [192.168.1.1,192.168.2.1]
> >
> > var HOME_NET_MINUS_DNS [$HOME_NET,!$DNS_SERVERS]
> >
> > And then use $HOME_NET_MINUS_DNS in a rule like this.
> >
> > alert tcp [10.1.1.1,10.1.1.2,10.1.1.3] any -> $HOME_NET_MINUS_DNS
any
> > -Jason
>
> Jason, yes this will work... I have been using logical 
> negations from IP ranges for quite some time successfully 
> (page 26 of the 2.9 manual).
>
> -Parker

Looks like this is not working with 2.8.6.1 can anyone verify?

Any ideas?

-J


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