Status: New
Owner: ----
Labels: Type-Defect Priority-Medium

New issue 3250 by [email protected]: How to solve NAT issue when clients are behind NAT
http://code.google.com/p/mobicents/issues/detail?id=3250

What steps will reproduce the problem?
1. Client 1 is behind NAT
2. Client 2 and SIP Server is on same network (running on same box)
3. Invite is sent from client 2 to client 1 thorough SIP server. Client 1 received INVITE and sent back INVITE ANSWER to SIP server.
SIP server could not sent back ACK (ACK is for INVITE ANSWER) to client 1.

What is the expected output? What do you see instead?
When ACK is created using the SIPResponse (INVITE ANSWER) by SIP server, it should send it to client 1 which is behind NAT.

What version of the product are you using? On what operating system?
mss-1.6.0.FINAL-apache-tomcat-6.0.32 on tomcat6, ubuntu 10.x

Please provide any additional information below.
If client is behind NAT, how to send invite successfully end to end. Is this handled by SIP server by some configuration or clients needs to use STUN to get external IPs and use it inside SIP messages? I als tried enabling STUN at SIP server but did not work.


Reply via email to