Re: Setting Via IP inside script logic

Thanks Daniel and Ovidiu,
Trawling through old mailing list posts I found a few references to
set_advertised_address() which seems to do the trick, I'm calling that when
the dispatcher group is going to something on a public address - if anyone
else is looking to do the same thing, I think this is the way to go.
Cheers,
Nick

On Tue, 22 Jul 2025 at 19:25, Daniel-Constantin Mierla <[email protected]>
wrote:

> 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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>
> --
> Daniel-Constantin Mierla (@ asipto.com)
> twitter.com/miconda -- linkedin.com/in/miconda
> Kamailio Consultancy, Training and Development Services -- asipto.com
>
>

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