asterisk users - Dec 2009 - Source-IP on Asterisk DRBD/-HA-Cluster wrong

Hi all,

I installed a Linux-HA-cluster with DRBD and Asterisk 1.4 on it.

Actually it might work quite good, failover etc. works, even if this is
not a 0-downtime solution, because current calls are dropped and the
phones not are reachable until they reregister at the Asterisk.

It "might" work good, because my phones are not able to register at
the
cluster-ip address, because the REGISTER arrives at the cluster-ip,
while Asterisk responds from the real host-ip of the active cluster-node.

The registration with the real ip works, but then I can't use any
failover solution.

I have already checked several solutions found at
http://www.voip-info.org/wiki/view/Asterisk+High+Availability+Solutions
and some others returned by searching the net, but nothing that helped
me out.

I see three possible solutions:
- is there a parameter in Asterisk to set the source-ip?
- patching Asterisk to include such a parameter?
- would be changing the primary ip-address to the "cluster"-ip and
  changing the "real" host-ip to an alias, a good solution?

Thanks for any hints in advance,
-- 

Chau y hasta luego,

Thorolf

> -----Original Message-----
> From: asterisk-users-bounces at lists.digium.com [mailto:asterisk-users-
> bounces at lists.digium.com] On Behalf Of Thorolf Godawa
> Sent: Thursday, December 03, 2009 2:49 PM
> To: Asterisk Users Mailing List - Non-Commercial Discussion
> Subject: [asterisk-users] Source-IP on Asterisk DRBD/-HA-Cluster wrong
> Actually it might work quite good, failover etc. works, even if this
is not a 0-
> downtime solution, because current calls are dropped and the phones
not
> are reachable until they reregister at the Asterisk.
Apologize for not directly answering your questions, however, I'm
considering playing with Remus and Xen in the future to deal with high
availability without dropping calls.

See http://dsg.cs.ubc.ca/remus/ for some details.

I have no idea if it will work or what the implications are but I
noticed that in doing research for some other projects and made a note
of it to try in the future.

sl

Thorolf,

In the [general] section of sip.conf, set the 'bindaddr' parameter to 
the cluster IP.  If Asterisk is only bound to the floating interface, it 
will respond only from that source IP.

-- Alex

Thorolf Godawa wrote:
> Hi all,
> 
> I installed a Linux-HA-cluster with DRBD and Asterisk 1.4 on it.
> 
> Actually it might work quite good, failover etc. works, even if this is
> not a 0-downtime solution, because current calls are dropped and the
> phones not are reachable until they reregister at the Asterisk.
> 
> It "might" work good, because my phones are not able to register
at the
> cluster-ip address, because the REGISTER arrives at the cluster-ip,
> while Asterisk responds from the real host-ip of the active cluster-node.
> 
> The registration with the real ip works, but then I can't use any
> failover solution.
> 
> I have already checked several solutions found at
> http://www.voip-info.org/wiki/view/Asterisk+High+Availability+Solutions
> and some others returned by searching the net, but nothing that helped
> me out.
> 
> I see three possible solutions:
> - is there a parameter in Asterisk to set the source-ip?
> - patching Asterisk to include such a parameter?
> - would be changing the primary ip-address to the "cluster"-ip
and
>   changing the "real" host-ip to an alias, a good solution?
> 
> Thanks for any hints in advance,

-- 
Alex Balashov - Principal
Evariste Systems
Web     : http://www.evaristesys.com/
Tel     : (+1) (678) 954-0670
Direct  : (+1) (678) 954-0671