14 Dec
2005
14 Dec
'05
6:15 p.m.
Douglas Garstang wrote:
Klaus,
Adding a second nic can't hurt. Asterisk can bind to multiple
interfaces in a system. We don't have to have the info in OpenSER.
Which interface does asterisk use for sending SIP messages? What if you
unplug this interface - does Asterisk resend the SIP message using the
other NIC and the proper IP address in Contact headers?
klaus
We're using OpenSER as a means by which we can
'copy' the
registrations to all the Asterisk systems, as Asterisk has no way to
do this. By nature of the fact that OpenSER is also doing the
registration authentication, it's interfacing to MySQL and for now
I'm saving the location info there as well.
IMO most other people's setup's look a little under-engineered. Most
people seem to be happy with having a hot or even cold spare. We're a
telco (CLEC) so downtown is a deal breaker.
Doug.
-----Original Message----- From: Klaus Darilion
[mailto:klaus.mailinglists@pernau.at] Sent: Wednesday, December 14,
2005 9:41 AM To: Douglas Garstang Cc: users(a)openser.org Subject: Re:
[Users] RE: failure_route.... I could cry...
If you already have 2 asterisk boxes, I do not think that adding a
second NIC in each asterisk will increase availability. Does Asterisk
bind to both interfaces? Which interface will be used by asterisk
for sending requests? Which src_IP will be used? What if this
interface is broken?
Why do you need the location info in Asterisk and openser?
IMO your setup looks like a little bit over-engineered.
regards klaus
Douglas Garstang wrote:
Klaus,
Yes. It's necessary to replicate 4 times. We're implementing a
'farm' of Asterisk hosts. Asterisk has a serious limitation where
there's no way to share contact info for phones between them.
OpenSER seemed like it may be able to address this issue, by
accepting registrations from the phones and then 'fanning' them out
to ALL the Asterisk boxes. In this way, each Asterisk box knows
where every phone is. Up to this point I had just been calling
forward() multiple times, once to each Asterisk system and it
seemed to work well. With the addition of extra ethernet ports in
each Asterisk box (for extra redundancy), it got more complicated
as I didn't want to register twice to the same Asterisk system.
While I don't think that would cause a problem, I was just trying
to make it as bullet-proof as I could.
Doug.
-----Original Message----- From: Klaus Darilion
[mailto:klaus.mailinglists@pernau.at] Sent: Wednesday, December 14,
2005 9:06 AM To: Douglas Garstang Cc: users(a)openser.org Subject:
Re: [Users] RE: failure_route.... I could cry...
That's a difficult setup. I've never did this yet and do not know
if it is possible at all. you can use t_replicate but this works
only with 1 host. I think someone solved this using forward_tcp.
is it really necessary to replicate 4 times?
regards klaus
Douglas Garstang wrote:
Oh dear... it's failing because as far as
t_relay() is concerned,
the packet has been delivered, and the transaction is complete,
right? If that's the case, how can I also send the REGISTRATION
packet to another destination? Can I use forward() with
failure_route? Arrgh!.
-----Original Message----- From: Douglas
Garstang Sent:
Tuesday, December 13, 2005 6:01 PM To: 'users(a)openser.org'
Subject: failure_route.... I could cry...
I am trying to have OpenSER forward registration requests to
multiple Asterisk boxes with failover. Each Asterisk box has
two ip addresses. My logic tries to relay to the first IP on
the first Asterisk box (192.168.10.100). If that fails, it
tries to relay to the second IP on the first Asterisk box
(192.168.10.17). It then goes on and repeats the process with
another Asterisk box who's IP's are 192.168.10.10.101 and
192.168.10.8.
Actually the first IP address on each Asterisk system is fake
(100 and 101)... that's how I am testing that it will fail to
the second one.
The openser.cfg below is causing this to be logged to
messages: Dec 13 17:50:08 bil-pdev-3 openser[22318]: route10:
Asterisk-1, NIC-1 Dec 13 17:50:08 bil-pdev-3 openser[22318]:
route20: Asterisk-2, NIC-1 Dec 13 17:50:08 bil-pdev-3
openser[22318]: ERROR: t_newtran: transaction already in
process 0xb6126560 < --- Why? Dec 13 17:50:08 bil-pdev-3
openser[22318]: route20: t_relay returned error
<--- Why? Dec 13 17:50:09 bil-pdev-3 openser[22328]: failure21:
Failed to register with Asterisk-2, NIC-1 Dec 13 17:50:09
bil-pdev-3 openser[22328]: route22: Asterisk-2, NIC-2 Dec 13
17:50:09 bil-pdev-3 openser[22328]: route22: End of routine Dec
13 17:50:10 bil-pdev-3 openser[22322]: User local found Dec 13
17:50:10 bil-pdev-3 openser[22320]: User local found
Why am I getting the t_newtran and t_relay errors in there?
What am I doing wrong? I'm just calling
rewritehostport(next-ip), followed by append_branch() and
t_relay. In fact something really weird happens. When I have
the code there for route[20], failure_route[21] and route[22],
it causes the code for the first three routing blocks,
route[10], failure_route[11] and route[12] to act differently.
It seems to make route20 fail to connect eventhough it comes
AFTER it in the code.
I'd really appreciate some help! Am I doing something wrong
with rewritehostport and append_branch, because quite frankly
the docs are terrible.
if ( method == REGISTER ) { if ( !www_authorize("voip.com",
"subscriber") ) { www_challenge("voip.com", "0"); };
save("location"); route(10); route(20);
# # First Asterisk System. #
# Try first IP on this system (fake - will fail) route[10] {
xlog ("L_INFO","route10: Asterisk-1, NIC-1");
t_on_failure("11"); rewritehostport("192.168.10.100:5060");
append_branch(); if ( !t_relay() ) { xlog ("L_INFO","route10:
t_relay returned error"); } }
failure_route[11] { xlog ("L_INFO","failure11: Failed to
register with Asterisk-1, NIC-1"); route(12); }
# Try second IP on this system (real - should work) route[12] {
xlog ("L_INFO","route12: Asterisk-1, NIC-2");
t_on_failure("13"); rewritehostport("192.168.10.17:5060");
append_branch(); if ( !t_relay() ) { xlog ("L_INFO","route12:
t_relay returned error"); } xlog ("L_INFO","route12: End of
routine"); return; }
# # Second Asterisk System #
# Try first IP on this system (fake - will fail) route[20] {
xlog ("L_INFO","route20: Asterisk-2, NIC-1");
t_on_failure("21"); rewritehostport("192.168.10.101:5060");
append_branch(); if ( !t_relay() ) { xlog ("L_INFO","route20:
t_relay returned error");> } }
failure_route[21] { xlog ("L_INFO","failure21: Failed to
register with Asterisk-2, NIC-1"); route(22); }
# Try second IP on this system (real - should work) route[22] {
xlog ("L_INFO","route22: Asterisk-2, NIC-2");
t_on_failure("23"); rewritehostport("192.168.10.8:5060");
append_branch(); if ( !t_relay() ) { xlog ("L_INFO","route22:
t_relay returned error"); } xlog ("L_INFO","route22: End of
routine"); return; }
Doug
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