[OpenSIPS-Users] Local calls behind load balancer/dispatcher

Adam Raszynski netcentrica at gmail.com
Fri Oct 5 11:43:37 CEST 2012


Hi

I would like to deploy the following scenario:
- one box as load balancer (LB)
- two boxes (S1,S2) acting as SIP proxy/registrars
- LB monitors health of S1 and S2 and routes traffic to them only if they
are reachable and working

So example request flow is:
User -> LB -> S1

The question is related with local calls (via username or virtual
extension).
When user registers, it sends traffic to LB and gets replies back from LB,
it thinks that it's registered to LB not final server.
Most NAT'ed clients would accept inbound requests only from LB IP address,
not from S1 or S2. Requests from other IP's will be ignored

How to configure OpenSIPS to send local call INVITE request via LB box, not
directly to the user's location sent in REGISTER contact field?

Kind Regards
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