[OpenSIPS-Users] Load balancer probing from incorrect interface

[Bill W.]

As an update, the load balancer probe appears to use the ip address
specified by the first listen= directive.

If I list the public IP first, then the probe tries to talk to the
internal IP from the external interface IP.


On 11/7/10 6:18 PM, Bill W. wrote:
> 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
> 
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