Hi,
we a have a SER (OpenSER) in front of 2 real-time Asterisk. SER simply forward SIP messages to 1 of the Asterisks: UA --> SER --> Asterisk We have a problem with REGISTERs: Asterisk answers with 200 OK, but changes the Contact header, inserting the IP of SER instead of the original IP (the IP of the UA). It seems that performs a sort of NAT-traversal, but all the elements are on public IPs! The Asterisk's version is 1.2.21, they are in real-time configuration, installed on a virtual machine with gentoo-linux. I've tried the same scenario with an Asterisk 1.0.9 (without virtual and without real-time) on a Fedora Core distribution, and it works. Any idea? Best regards, -Stefano
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