New subject: [Users] OpenSER as load balancer for several Asterisk servers

21 Dec 2006

Hi Users,
         I'm here again.

After having read more docs I don't feel like using rtpproxy
My Asterisks have both public IP Adresses so I don't need to proxy rtp stream

I just need a configuration to randomly proxy SIP requests to 
Asterisk boxes behind SER (for load balancing purposes)
and to handle registrations of user to forward incoming calls to them 
(calls are coming from Asterisks to OpenSER)

I'm really stuck on it because I already have such a working setup, 
with same config files.
I'm just trying to replicate it on another site

Tnx in advance for help

Edoardo

My last mail to the ml follow for reference

Tnx again Klaus,
         i'll read docs more in depth and try to understand each 
change to openser.cfg you suggested

...
  U 2006/12/20
19:15:35.025446 OOO.OOO.OOO.OOO:5060 -> CCC.CCC.CCC.CCC:21722
SIP/2.0 183 Session Progress.
Via: SIP/2.0/UDP 
OOO.OOO.OOO.OOO:5060;branch=z9hG4bK-d87543-3e229802603d7c32-1--d87543-;rport=21722. 

^^^^^^^^^^^^^^

strange bug again - there must be CCC.CCC.CCC.CCC 
really strange, do you think it's an openser bug ?
The strangest thing is that I just copied openser configs from a 
working system (Openser + Asterisks) changing just ip addresses
OpenSER version is also the same...

[...]

...
  # !! Nathelper
onreply_route[1] {
     # NATed transaction ?
     if (isflagset(6) && status =~ "(183)|2[0-9][0-9]") {
         fix_nated_contact();
     #force_rtp_proxy();        ^
Are you sure it is commented? I do not believe it because the ngrep 
shows that the SDP of 200 Ok is rewritten. 
Sure, I also tried to remove the line without solving the previous problem

...
 Please read the Getting Started Turial from onsip.org
carefully. It 
describes how you handle NAT correctly and also describes how to do 
NAT traversal for in-dialog messages, which is missing in your config. 
I will.

Tnx again

Regards
Edoardo

Re: [Users] OpenSER as load balancer for several Asterisk servers