From mboxrd@z Thu Jan  1 00:00:00 1970
From: Andrew Schulman <andrex-cmaem7PIVQQM4YKboWzA4l6hYfS7NtTn@public.gmane.org>
Subject: Re: How to flush the connection state in the linux
Date: Mon, 27 Dec 2004 05:41:07 -0500
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To: netfilter-wool9L35kiczKOhml7GhPkB+6BGkLq7r@public.gmane.org

> Does any one know how to flush the connection state in the linux (Not
> flush iptables rule -F).
> I used transparent mode in the linux (use brctl to bridge eth & eth1).
> When I tried to use iptables to drop some specified packet and it was
> fail.
> So I doubt there are some established connection state exist in the
> linux to pass these
> Forbidden connections.

ifdown, then ifup?  Brutal, but it should work.