Snort mailing list archives

Re: Sticky-drop


From: G Ramon Gomez <gene () gomezbrothers com>
Date: Wed, 07 Dec 2005 07:59:59 -0800

Hi Patrick,
With regards to this particular issue, one thing that caught me when I started using RSTs was that the packets get sent using the routing table. In my case I had a stealth bridging firewall that I had set up with flexresp, but found that, although Snort was listening on br0 (eth1 + eth2, no IPs assigned), RST packets were being emitted on eth0 (my management interface, where my only IP was assigned). As a result, my stateful firewalls on the management network were dropping the packets. Double-check that the RSTs are being sent out the interface you think they're going out through.

- Ramon

Patrick Walsh wrote:

        Also, are there any known bugs with connection resets?  I think the
reset packets may not be getting sent to both ends of the connection or
else might not have the proper source port set.


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