Well, like I say, the socket transport client maintains a pool of connections, and the bisocket transport is derived from the socket transport code. In any case, there is currently no mechanism to restrict local ports. Just out of curiosity, do you have a client side firewall filtering outgoing packets by source port, or a a server side firewall filtering incoming packets by source port? If you like, you could create a JIRA issue at http://jira.jboss.com/jira/browse/JBREM, giving as much information as possible about your use case. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4059715#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...