Re: Setting Via IP inside script logic

Provision a secondary IP on the server and use that one for private traffic
and the one that is NATed 1:1 for public traffic. On the main IP (the one
that is NATed 1:1) set the advertised option.

- ovidiu

On Tue, Jul 22, 2025 at 12:11 Nick Jones via sr-users <
[email protected]> 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
> __________________________________________________________
> Kamailio - Users Mailing List - Non Commercial Discussions --
> [email protected]
> To unsubscribe send an email to [email protected]
> Important: keep the mailing list in the recipients, do not reply only to
> the sender!
>

__________________________________________________________
Kamailio - Users Mailing List - Non Commercial Discussions -- [email protected]
To unsubscribe send an email to [email protected]
Important: keep the mailing list in the recipients, do not reply only to the sender!