[asterisk-users] Linux-HA and Asterisk

[Mike Clark]

Jeff Bachtel wrote:
> On Tue, Sep 11, 2007 at 10:32:14AM -0400, Mike Clark wrote:
>   
>> We have gotten stuck trying to get a highly available Asterisk cluster 
>> fully functional. We used Linux-HA with Asterisk 1.4.11 on privtae IP's 
>> behind the virtual public IP. I got as far as getting phones registered 
>> and being able to place calls that rang and you could answer, but there 
>> was no audio. So, I enabled RTP debugging and discovered Asterisk was 
>> still attempting to send the audio packets to the phones private 
>> address, even though the device was set up as NAT=yes. externip was set 
>> to the virtual public IP.
>>     
>
> Is that correct that Asterisk was sending to a RFC1918 address? From
> your description of your setup, it seemed that the backend Asterisk
> servers themselves had 1918 addresses, and your Polycoms would have
> public addresses.
>
> In that case, the Asterisk instances might be using their 1918
> addresses in packets to the Polycoms. To correct that, the Asterisk
> instances would need to use something like STUN or a preset public IP
> address in its SIP configuration.
>
> jeff
>
>   
Yes, the Asterisk boxes were on private addresses. The Polycoms are also 
behind a NAT. Yes, I tried using externip in sip.conf and this allowed 
registration, and calls to be placed, but no audio. Unfortunately, 
Polycom does not support STUN.