Hello We have our private lan behind a linux firewall, with iptables 1.2.3 ( Redhat 7.2 ). We use the kernel patch and patch-omatic to solve the H323 problem without success. So i want when some user try to use MSN messenger (Audio conversation) the linux firewall flush it's rule and become like a simple gateway to route or Nat packet to the internet for this particular user. So the rest of rules for other ip adress become intact. The idea is that the packet from this particular ip adress go throught the firewall whithout being checked with iptables rules. If anyone have solution. Or can i use another script or utilities like H323 proxy or gatekeper parallel with iptables runing Thank you .