Re: Snort Network Suppression

I'm not sure if I understand your question correctly, but in the
snort.conf file, you should set $HOME_NET to 192.168.1.0/24 and
EXTERNAL_NET to !$HOME_NET. I wouldn't recommend ignoring local traffic
as Snort can do wonders for detecting malware trying to connect out from
the host/host network. If you still get a lot of false positives, try
and tweak the rules or create your own in order to get your desired results.

Jonathan Askew JBASKEW wrote:
> I am new to IDS and have just set up snort on a ubuntu host. It has worked
> well except for the fact that I am getting some false positivies from local
> traffic on the network. I have been trying to find the solution on snort's
> forums but the site seems to be going up and down randomly. I want to set a
> rule in order to suppress/ignore local network traffic for 192.168.1.0/24.
> I know this can be done in the /etc/threshold.conf file but have not been
> able to do so successfully. Can someone be so kind as to post their
> threshold.conf file or guide me through the process?
> 
> Thanks,
> Blake
> 
> 
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Test Your IDS

Is your IDS deployed correctly?
Find out quickly and easily by testing it 
with real-world attacks from CORE IMPACT.
Go to http://www.coresecurity.com/index.php5?module=Form&action=impact&campaign=intro_sfw 
to learn more.
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