[Asterisk-Users] binding Asterisk to virtual IP

[Leif Madsen - Certified Asterisk Consultant]

On 4/12/05, Xu Wang <xwang at cascotec.com> wrote:
> Our Asterisk works fine with 'real' IP. But when we change the domain to a
> virtual IP, the audio stream probably goes to the 'real' IP. There is no
> sound coming back. Asterisk log shows that it does not hang up.
> 
> Do you know what might be wrong?

This sounds like the bug currently being worked on in CVS. Please test
the patch and submit feedback to the bug tracker.

To quote the bug description:

Currently if we have Asterisk SIP channel driver binding to all
interfaces, and eth0 has many subnets attached to it (a primary
10.1.200.1, and then alias interfaces eth0:1 with 10.1.201.1, eth0:2
with 10.1.202.1, eth0:3 with 10.1.203.1..

If an INVITE is sent to Asterisk on 10.1.202.1 (eth0:2) the response
is always returned to 10.1.200.1. We need it to come back to
10.1.202.1.

Here is a direct link to the bug and much more information.

http://bugs.digium.com/bug_view_page.php?bug_id=0002358

Thanks,
Leif Madsen
http://www.leifmadsen.com