SIP trunk multi wan state not flushed - issues - Solution?

[simont]

Hi,

about the issues of no flushing states on WAN IP change , on PFsense 2.1-RELEASE, after some searching around the forum, using precious information on the topic:

https://forum.pfsense.org/index.php?topic=65004.0

but not working in version 2.1 ("afterfilterchangeshellcmd" not working in config.xml anymore) , I find a "home made" solution working on the filter.inc code and using one script as in the topic I said before, so:

Create a script in /usr/local/bin named:"kill_pbx_states.sh" ( or as you want ) :

#!/bin/sh
sleep 5
/sbin/pfctl -k VoipPBXorDevice_IP

Modified filter.inc adding line 148:

mwexec("/usr/local/bin/kill_pbx_states.sh");

My network configuration is :
2 WAN (ADSL)
1 LAN (local home network)

with a mixed load balance and failover(only voip) configuration and sticky connections enabled.

Now my PBX ( based on freepbx-asterisk ) is working good and, looking at the states, when my WAN lines goes down&up everything about  my PBX is cleared correctly.

It seems that default PFsense flushing is not enough but only killling them with pfctl is ok.

This is my case , hope that it can help anyone .