[OpenSIPS-Users] Load balancer probing from incorrect interface

[Bill W.]

Hello everyone,

I've got an opensips-1.6.3-tls installation using multiple interfaces
and load balancing.

My internal interface  is rfc1918 space and my external interface has
public IPs.
listen=udp:10.0.10.3:5060
listen=udp:66.180.205.3:5060


I have the following load_balancer configuration:
 id | group_id |      dst_uri      | probe_mode
----+----------+-------------------+------------
  1 |        1 | sip:66.180.205.11 |          2
  2 |        1 | sip:66.180.205.12 |          2
  3 |        2 | sip:10.0.10.1     |          2
  4 |        2 | sip:10.0.10.2     |          2


What's happening is that the load balancer is trying to probe the public
IPs from the private interface IP (and failing of course).

tcpdump output on internal interface:
18:13:26.471734 IP 10.0.10.3.5060 > 66.180.205.11.5060: SIP, length:
18:13:28.473802 IP 10.0.10.3.5060 > 66.180.205.11.5060: SIP, length:


Thoughts?

Thanks,
Bill