Hi

To investigate the UNREACHABLE issue I'm having, I need to have confirmation that it's OK for the Asterisk server to be behind a NAT router, and also have clients elsewhere on the Net behind their own NAT router?

I know that clients must use STUN to resolve their public IP and punch UDP holes in their firewall, but is there something special that must be done in the configuration of Asterisk so it knows it's living in a private network, behind a NAT router?

And if someone knows of tools to investigate SIP issues, especially a text-based sniffer (no X available in the Asterisk live CD I'm using), I'm interested :-)

Thank you.

PS: FWIW, extension 203 (softphone) and 204 (IP phone) are both located on the same network and behind a NAT router, and both connect out to an Asterisk server somewhere on the Net behing its own NAT router:

slast*CLI> sip show peers
Name/username Host Dyn Nat ACL Port Status 204/204 82.237.x.y D 5060 UNREACHABLE
203/203                    82.237.x.y     D   N      46838    OK (925 ms)

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