Hi All I'm trying to access a JBM 1.4.4. environment deployed on JBoss 4.2.3 from a remote JBoss 4.2.3 server (client). The messaging client server is behind a firewall. We've opened following ports on the firewall: 1099, 1098, 4444 and 4457. Apparently we needed to open an additional undocumented port (55794) in order to let the client code create the JMS connection and ask for a JMS Session. However, for some reason the client code that tries to open a JMS connection seems to use dynamic ports. Some time later on (after some restarts) the client tries to access port 17661 on the JBM machine (instead of 55794). This leads to a process freeze. Is there a configuration option so we can fix this port and/or can somebody please explain what is going on? Thanks in advance for your reply. Greetz View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4257595#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...