Hi there. My name is David Medina.
I think this is a million dollar question: Asterisk is inside a nat, clients or sip phones inside another nat
What can I do? or what should I do?
I’ve been trying to configure SER but it is quite tricky, (not to say impossible). I know there has to be a person that already encountered this problem and found a solution.
If that person is willing to share information about it, please let me know.
Thanks
David Medina
I don’t know the particulars of your setup but my * server is behind a NAT gateway and I use an X-Lite softphone at my office which is behind a NAT gateway too. It works…Perhaps if you shared a little bit more about your setup and what is actually going wrong we could offer advice.
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Although we need to know your setup to adequately follow up with this issue but you can also check out this thread and others within it, perhaps it will help; forums.digium.com/viewtopic.php? … 298a24bee0
I have set this up, it’s not too hard. SER is not required.
For * inside nat- define localnet= and externip= in sip.conf. Forward udp port 5060 and whatever range is defined in rtp.conf to the * box. (you can change the range, you only need a hundred ports or so unless you have tons of users)
For clients also inside nat- use STUN (this allows the phone to discover its own IP address and NAT type)
then put nat=yes and qualify=yes in the sip.conf statement for those phones. qualify=yes makes asterisk send the client a sip message every minute or two and measures the time for the reply. This keeps the NAT mapping on the client side open.
Hope that helps!
i connect nated x-lite with nated asterisk box using VPN.
openVPN is configured between 2 access servers
CLI> sip show peers
Name/username Host Dyn Nat ACL Port Status
700/700 10.8.0.X D N 14072 OK (150 ms)
82/82 192.168.6.X D 5060 OK (8 ms)
there are at least few solution for nated asterisk with nated clients