It seems httpd attempts to establish TCP connections to registered workers. This won't work if a worker has a private IP address, e.g. 192.168.1.5. Can't httpd reuse *incoming* TCP connections from workers to *send* messages to them ? This would require httpd to keep incoming connections from workers open. The scenario is as follows: * httpd runs on a public IP * We have a worker W which runs on a private IP, e.g. 192.168.1.5:8009 is its AJP connector * W registers with httpd under 192.168.1.5:8009, this works * Now someone tries to access a webapp * Say httpd picks W * Now httpd attempts to connect to 192.168.1.5:8009, and this fails The question is why does httpd not reuse the TCP connection established by W to httpd to send the AJP request back to W ? -- Bela Ban Lead JGroups / Clustering Team JBoss