<div dir="ltr"><div>Hi Larry,<br><br></div>Thanks for the reply. We have all of those settings left out of our sip.conf, so this should allow everything, right?<br><br></div><div class="gmail_extra"><br><br><div class="gmail_quote">
On 21 January 2014 17:38, Larry Moore <span dir="ltr"><<a href="mailto:lmoore@omninet.net.au" target="_blank">lmoore@omninet.net.au</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Have you checked your localnet=, deny=, permit=, contactdeny= & contactpermit= settings?<br>
<br>
My 2c worth.<div class="HOEnZb"><div class="h5"><br>
<br>
On 20/01/2014 10:51 AM, David Cunningham wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Hi,<br>
<br>
We have a Kamailio and Asterisk cluster, both machines being on a real<br>
103.x IP address and also on a 172.x OpenVPN address.<br>
<br>
The problem is that when Kamailo receives a call from the VPN and<br>
forwards it to the Asterisk server on it's 103.x address, Asterisk never<br>
sees the call.<br>
<br>
If Kamailio receives a call from the VPN and forwards the call to the<br>
Asterisk server on it's 172.x address then it works. However, if the<br>
call isn't from the VPN then forwarding it to the 172.x address doesn't<br>
work. So basically the problem is going between the real network and the<br>
VPN.<br>
<br>
The question is, how can we make this work when calls are received on<br>
either network on the Kamailio server and are forwarded to Asterisk?<br>
<br>
Using ngrep on the Asterisk server we see that it does receive the<br>
INVITE, but Asterisk's logging shows no sign it at all. We guess it's a<br>
Linux networking issue rather than Asterisk's fault, but don't know<br>
where to fix it. We do have net.ipv4.ip_forward = 1 on both the Kamailio<br>
and Asterisk servers.<br>
<br>
Thanks in advance for any help.<br>
<br>
The ngrep on the Asterisk server:<br>
<br>
U 2014/01/17 13:15:<a href="tel:15.599557%20172" value="+15599557172" target="_blank">15.599557 172</a>.x.x.x:5060 -> 103.y.y.y:5060<br>
INVITE sip:9067268@103.y.y.y:5060;<u></u>transport=udp SIP/2.0.<br>
Record-Route: <sip:172.x.x.x;lr=on>.<br>
Via: SIP/2.0/UDP 172.x.x.x;branch=z9hG4bK50c7.<u></u>f49ceb73.0.<br>
Via: SIP/2.0/UDP 192.z.z.z:5062;rport=5062;<u></u>branch=z9hG4bK806710997.<br>
From: "9067271" <sip:9067271@172.x.x.x>;tag=<u></u>198791249.<br>
To: <sip:9067268@172.x.x.x>.<br>
Call-ID: 1905625787@192.z.z.z.<br>
...<br>
<br>
172.x.x.x is the Kamailio server's VPN address<br>
103.y.y.y is the Asterisk server's real address<br>
192.z.z.z is the calling phone's LAN address<br>
<br>
--<br>
David Cunningham, Voisonics<br>
<a href="http://voisonics.com/" target="_blank">http://voisonics.com/</a><br>
USA: <a href="tel:%2B1%20213%20221%201092" value="+12132211092" target="_blank">+1 213 221 1092</a><br>
UK: <a href="tel:%2B44%20%280%29%2020%203298%201642" value="+442032981642" target="_blank">+44 (0) 20 3298 1642</a><br>
Australia: <a href="tel:%2B61%20%280%29%202%208063%209019" value="+61280639019" target="_blank">+61 (0) 2 8063 9019</a><br>
<br>
<br>
</blockquote>
<br></div></div><div class="HOEnZb"><div class="h5">
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</div></div></blockquote></div><br><br clear="all"><br>-- <br>David Cunningham, Voisonics<br><a href="http://voisonics.com/" target="_blank">http://voisonics.com/</a><br>USA: +1 213 221 1092<br>UK: +44 (0) 20 3298 1642<br>
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