As Per The WiKi:
IAX sends both command information and voice data over the same connection. This allows it th transverse a NAT seamlessly.
As for Double NAT, My setup is:
Home PBX <----[Wireless]----> ISP WiFi NAT <----[Ethernet]----> Primary NAT <----[Ethernet]----> Work PBX
So, Yes it will work over double NAT, I can send and receive calls at home. In fact, I call my wife all the time from work.
-- Christopher Dobbs
Nabeel Jafferali wrote:
This is somewhat related to my other query on the list regarding NAT traversal.
I have heard many times that IAX is "NAT-transperant". I am unsure how it accomplishes this.
I do know that SIP works like this: your SIP device send a request to the SIP server (usually on port 5060) with whatever command. The SIP server respends to your device's "apparent" IP and port (this is decided depending on how that NAT is set up, STUN, etc.). The voice is then sent to the "apparent" RTP port on your device (deciding what that is, again, would depend on the NAT set up).
How does IAX eliminate this problem of ports being "mapped" by your NAT router and external IPs? Does it use one port for both commands and voice packets? Does the remote server just use the "received from" IP address and port to respond?
Finally, would an IAXy work seamlessly in a configuration where it is plugged into a NAT router which is plugged into another NAT router - double NATted? The * server is on a public IP.
--
Nabeel Jafferali
tel: 647.722.8457 x201
718.606.4190 x201
fwd: 46990 x201
email/msn: nabeel<at>jafferali.net
_______________________________________________
Asterisk-Users mailing list
[EMAIL PROTECTED]
http://lists.digium.com/mailman/listinfo/asterisk-users
To UNSUBSCRIBE or update options visit:
http://lists.digium.com/mailman/listinfo/asterisk-users
_______________________________________________ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
