Iptables and established connections...

[rottis]

Hi

I have a beowulfcluster on an internal masqueraded net (NAT) which I use for Counterstrike servers.
When I launch a server i keep track of which computer on the internal net that it runs on and makes a dnat forwarding (iptables) for the specified port from the master server (external adress) to the computer on the internal net. If I restart the server it will most likely be launched on an onother computer on the internal net and I create a new forward for the port to the internal computer. So far so good

The problem arouses if a person has been connected to a server and that server is then relocated. His connections are still being routed to the former computer wich now don't have a server listening on that port. All new connections on the other hand is forwarded to the correct computer.

Is there any way I can remove these remembered connections so that when the rule is rewritten it will actually send all traffic that comes in on a specified port to the correct adress?

/rottis