Hello,
the advertise for listen provides is very convenient, because it is automatically handled internally by most of the functions. But there are config options to set the advertise address per request, but with large configs, the complexity increases. See functions exported by core and modules like corex and rr.
Maybe you can use (listen on) a different port for the internal network communication (e.g., 5080), with no advertise address, that would keep the config simpler.
Cheers, Daniel
On 22.07.25 10:59, Nick Jones via sr-users wrote:
G'day all,
I'm working on a scenario with a Kamailio box with a private IP, with a public IP 1:1 NATed to it (but the VM does not see the public IP on the NICs).
When forwarding requests to some hosts I want to set the Via address to be the public IP, but when forwarding requests to other hosts I want to leave the Via address to the internal IP address.
If I set the `Advertise` parameter in the bind config, this sets the Via to the advertised IP, but I'm seeing that address used even when communicating with hosts on the private IP.
Of course if the IP was on the VM itself I could use $fs or force_send_socket, but that only works if I've got the public IP bound, which I can't do.
Is there a simple way to set / override what IP gets baked into the Via header?
Cheers, Nick
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