Snort mailing list archives

Re: Blocking specific port or IP address


From: Steve Suppe <suppe2 () llnl gov>
Date: Mon, 21 Jun 2004 13:49:40 -0700

I'd recommend using a Berkeley Packet Filter - this will block Snort from ever seeing the packets.

BPFs are specified on the command line, such as

./snort -c /etc/snort.conf <other snort switches you want> not port 35 and not host x.x.x.x

Just google for more tricks for syntax, but what this does is drop the specified packets before Snort ever sees them at all. Hope that's what you're looking for.

Steve

Alina Lebrato wrote:

Is there a way to block Snort from capturing traffic to a specific IP address or TCP port.  I have some valid traffic that I want 
to "rem" out.

Thanks in advance for the replies.

Alina Lebrato Guilford County Information Services Chief Security Officer (336) 641-7716 Phone (336) 641-4504 Fax alebrat () co guilford nc us <mailto:alebrat () co guilford nc us>



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Thank you


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Respectfully,

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Steve Suppe
Computer Scientist/Incident Responder
Computer Incident Advisory Capability
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