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General Discussion / DUAL WAN FAILOVER & SIP
« on: September 18, 2023, 05:34:12 pm »
Hi to everibody and thanks to have accepted me.
I'm Enrico and after years with pfSense I've started to use OPNsense since last year, til now succesfully, I'm not a rookie but surely I'm even not an expert cause there are always something to learn.
This is the question, I've configured an OPNsense 23.7.1_3 with a failover dual wan and all goes correctly, if the primary gateway goes down the system switch on the secondary and all the client behind the FW can continue to works. The only problem is the one for which I'm writing here, I explain.
I've a Freepbx in the LAN of the firewall with a SIP trunk connected to our cloud platform, when the primary goes down, from it I can continue to ping outside, make updates and so on, the only things that doesn't go is the SIP Trunk so I've made some checks and with a packet capture I noted that the request to register that the PBX sends to its gateway (the OPNsense above) are still managed by the primary gateway WAN even if it is down and not by the one 'active' like the other traffic.
Which may be the problem ? I really don't understand why only the SIP packets follow this flow while the other not.
Thanks for your support
Enrico
I'm Enrico and after years with pfSense I've started to use OPNsense since last year, til now succesfully, I'm not a rookie but surely I'm even not an expert cause there are always something to learn.
This is the question, I've configured an OPNsense 23.7.1_3 with a failover dual wan and all goes correctly, if the primary gateway goes down the system switch on the secondary and all the client behind the FW can continue to works. The only problem is the one for which I'm writing here, I explain.
I've a Freepbx in the LAN of the firewall with a SIP trunk connected to our cloud platform, when the primary goes down, from it I can continue to ping outside, make updates and so on, the only things that doesn't go is the SIP Trunk so I've made some checks and with a packet capture I noted that the request to register that the PBX sends to its gateway (the OPNsense above) are still managed by the primary gateway WAN even if it is down and not by the one 'active' like the other traffic.
Which may be the problem ? I really don't understand why only the SIP packets follow this flow while the other not.
Thanks for your support
Enrico