IAX trunk between sites - FreePBX HA [Solved]

FreePBX
1

Hello,

I’ve been working on getting IAX Trunks working for a while now and am having some issues. My goal is to bring up IAX and DUNDi trunks so I can inform each PBX about the others exensions. If there is a better way, please let me know. :slight_smile:

The sites are connected via VPN.

site1 contains 2 Sangoma 300 Appliances in HA mode, so there is a floating IP. Sites 2 and 3 each have 1 Sangoma 100 Appliance.

Configuration is something like this:

site1 floating IP. 10.1.1.3
site1 FreePBX-ha01 IP 10.1.1.1
site1 FreePBX-ha02 IP 10.1.1.2

site2 FreePBX1 IP 10.2.1.1

site3 FreePBX1. IP 10.3.1.1

in the log in site two, I see this over and over:

2017-09-08 22:19:20] NOTICE[2271] dnsmgr.c: dnssrv: host ‘01.voice.com’ changed from 10.1.1.3:4569 to 10.1.1.1:4569
[2017-09-08 22:19:20] NOTICE[2271] dnsmgr.c: dnssrv: host ‘01.voice.com’ changed from 10.1.1.1:4569 to 10.1.1.3:4569

In DNS, “01.voice.com” is a single A Record pointing 10 the floating IP: 10.1.1.3.

In a Packet Capture I am seeing this:

-9:-5:-41.549905 IP 10.1.1.3.4569 > 10.2.1.1.4569: UDP, length 14
-9:-5:-41.550537 IP 10.2.1.1.4569 > 10.1.1.1.4569: UDP, length 12
-9:-4:-58.335394 IP 10.2.1.1.4569 > 10.1.1.3.4569: UDP, length 14

It makes me wonder if there is something special I am missing with the HA setup. Should I be pointing the trunk at the ‘real’ IP? If so, does that mean I need multiple trunks for each HA participant?

Thank you!!!

2

You need to bind IAX to the floating ip the same way you did for SIP.

1 Like
3

Of course its that easy! :slight_smile: I should have asked a week ago.

Adding the floating IP to Settings > Asterisk IAX Settings > Advanced > Bind Address on the HA cluster worked. I did have to reboot (perhaps a network restart would have worked?), but just applying the settings isn’t enough. I rebooted both endpoints and the trunk came up fine on both sides, with two way audio on test calls.

Thank you @lgaetz !

Cheers,
Seth

2 Likes
4

For future, a reboot isn’t necessary. Just restart Asterisk with fwconsole restart.

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