Stateful connection tracking is the one part that is not HA ready...some have built and attempted to have HA Netfilter, you may want to google or search through archives... -----Original Message----- From: netfilter-admin@xxxxxxxxxxxxxxxxxxx [mailto:netfilter-admin@xxxxxxxxxxxxxxxxxxx] On Behalf Of Jason Yap Sent: Tuesday, July 29, 2003 9:42 PM To: netfilter@xxxxxxxxxxxxxxxxxxx Hi all, Is netfilter HA ready, or any one build netfilter with HA/redundant before? Thanks! Jason