I execute the following commands on the machine Ifdown eth0 Ifdown eth1 Ifup eth0 Ifup eth1 But the original condition is still existed :( Do you have any other suggestion? Sincerely Vincent > -----Original Message----- > From: netfilter-bounces@xxxxxxxxxxxxxxxxxxx > [mailto:netfilter-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of > Andrew Schulman > Sent: Monday, December 27, 2004 6:41 PM > To: netfilter@xxxxxxxxxxxxxxxxxxx > Subject: Re: How to flush the connection state in the linux > > > > 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. >