[Users] NAT Problem with OpenSER behind load balancer

Hi, I have put the OpenSER version 1.2 behind a BIG IP load balancer which provides a static private IP address (10.1.1.20) via NAT to the OpenSER. In our application, the clients will send to one of the three public addresses that are defined as aliases: alias="65.185.232.62:5061" alias="65.185.232.62:5062" alias="65.185.232.62:5063" An incoming OPTIONS message is received with the host in the REQ URI set to 65.185.232.62:5063 is received and when it hits this section of openser.cfg: if (!uri==myself) { # mark routing logic in request append_hf("P-hint: outbound\r\n"); route(1); }; it executes within the if conditional and tries to route the OPTIONS message. I am wondering why uri does not match myself. The debug output from the log is as follows (it seems that the alias assignments are not working): Mar 19 16:41:11 homer openser[2267]: [ID 487083 local0.debug] grep_sock_info - checking if host==us: 13==9 && [65.185.232.62] == [1 0.1.1.20] Mar 19 16:41:11 homer openser[2267]: [ID 375670 local0.debug] grep_sock_info - checking if port 5061 matches port 5063 Mar 19 16:41:11 homer openser[2267]: [ID 487083 local0.debug] grep_sock_info - checking if host==us: 13==9 && [65.185.232.62] == [1 0.1.1.20] Mar 19 16:41:11 homer openser[2267]: [ID 375670 local0.debug] grep_sock_info - checking if port 5062 matches port 5063 Mar 19 16:41:11 homer openser[2267]: [ID 487083 local0.debug] grep_sock_info - checking if host==us: 13==9 && [65.185.232.62] == [1 0.1.1.20] Mar 19 16:41:11 homer openser[2267]: [ID 375670 local0.debug] grep_sock_info - checking if port 5063 matches port 5063 Mar 19 16:41:11 homer openser[2267]: [ID 140248 local0.debug] DEBUG:check_self: host != me Any suggestions? I have not tried this in any other version. Is this a possible bug in 1.2? thanks, Tim