I use simple port forwarding on an Linux firewall (iptables)...so that's not the issue.
I was referring to IAX2 of course (IAX has be gone a long time I think)... Unlimitel is running * 1.4.x (and so am I)... I just can't understand IAX2 connections suddenly dropping (on one day) being protocol issues (if no one changed their * versions). Or is this how IAX2 fails? -----Original Message----- From: asterisk-users-boun...@lists.digium.com [mailto:asterisk-users-boun...@lists.digium.com] On Behalf Of Dr. Michael J. Chudobiak Sent: March 25, 2009 9:29 AM To: Asterisk Users List Subject: Re: [asterisk-users] ITSP's no longer supporting IAX? >> The choice of router/NAT is critical though. Unlimitel recommended the >> SnapGear 560 to me, and it eliminated all the issues I was having with >> IAX going through my Sonicwall devices. >> >> Just another datapoint for you... > Just curious. > > Since IAX only uses ONE port, do you have any idea what the technical > reason behind a specific router would be critical? Well, with a Sonicwall TZ170, you had to enabled "Firewall > VOIP > Enable consistent NAT", which was not the default setting. Then, you had to figure out that "Firewall > Advanced > Default UDP Connection Timeout" defaulted to 30 seconds, less than the normal Asterisk 60 second registration timeout. Then, for some reason, the TZ170 would simply lose packets. A fraction of calls would end almost immediately after they started, with Asterisk reporting a "raw hangup" error and INVAL packets, suggesting that some IAX2 packets were being lost, mis-ordered, or mis-translated. Anyway, the Sonicwall TZ170 was totally unreliable for IAX2 connections. They caused me a lot of grief. Avoid them like the plague. The Snapgear 560 "just works", which I appreciate very much! - Mike _______________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users _______________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
