I was under the impression that C:\jboss-4.0.5.GA\server\hmc\deploy\tc5-cluster.sar\META-INF\jboss-service.xml was the new, cool place to configure http session replication. I set it up to use tcp, works great and everything, yet I get 20:44:36,484 ERROR [UDP] exception=java.net.NoRouteToHostException: No route to host: Datagram send failed, msg=[dst: 228.1.2.3:45566, src: DAYMDEV001:1036 (additional data: 14 bytes) (2 headers), size = 0 bytes], mcast_addr=228.1.2.3:45566 The only place 228.1.2.3 is mentioned in my configuration is the cluster-config.xml in the deploy directory. Do I have to configure both? Should I delete cluster-config.xml? What gives? thanks, Al View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4007124#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...