We checked JGroups and it suggests to use bind_addr and start_port and end_port for the server using TCP as the discovery protocol. We asked for the details from websphere admin and he gave us ip addresses for both the servers present in the cluster. Which ip address we need to use in the bind_addr attribute? Or would it be fine not to specify this as JGroups doc mentions it to be useful in case of a multihomed machine. If not specified, the server socket will be created on all available interfaces. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4209306#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...