[SR-Users] Normal behaviour with loose_routing

[Loic Chabert]

Thanks Daniel,

Your snippet code must be used in proxy/registrar or on LB ?

The proxy/registrar should follow the same behaviour with the SBC and the
lb ? Loose_route every request from sbc and dispatch request from lb to sbc
?

Regards.

2018-01-30 10:51 GMT+01:00 Daniel Tryba <d.tryba at pocos.nl>:

> On Tue, Jan 30, 2018 at 10:22:39AM +0100, Loic Chabert wrote:
> > I have a setup configurered has diagram below:
> >
> > UAC -> Proxy LB (proxy lb) -> Proxy Router/registrar (proxy B) ->
> Asterisk
> > SBC
> >
> > My UAC is SIPP and sending a classic call scenario: INVITE - ACK - BYE.
> >
> > But i have some trouble to understand which queries should be loose
> routed
> > and which queries should be dispatched by dispatcher module.
>
> Having a similar setup:
> -all messages not from the ipadresses of "Proxy Router/registrar"
> machines are DISPATCHed
> -everything else is loose_route()-ed
>
> > My first invite request has been dispatched to proxy B by proxy LB.
> > After that, ACK and BYE request should be loose_routed or should be
> > dispatched as other request ? My proxy B is a statefull proxy, logging
> cdrs
> > and other stuff ...
> >
> > From my point of view, subsequent request should be loose_routed to keep
> > dialog informations consistent. My subsequent requests have record-route
> > headers. Should i use theses headers  to route my calls ?
>
> Yes, all subsequent message cvan be handled within dialog. Your config
> could be
> something really close to the basic kamailio config (with WITH_NAT defined)
>
> request_route {
>         route(REQINIT);
>
>         route(NATDETECT);
>         route(WITHINDLG);
>
>         if (is_method("INVITE|SUBSCRIBE"))
>         {
>                 record_route();
>         }
>
>         if(!is_in_subnet($si, "x.y.z.a/bc"))
>         {
>                 add_path_received();
>
>                 ds_select_dst(1, 0);
>
>                 t_on_failure("RTF_DISPATCH");
>         }
>         else
>         {
>                 remove_hf("Route");
>
>                 loose_route();
>         }
>
>         route(RELAY);
> }
>
>
> > Loose routing features only work with "Route" header ? What is the
> > difference beetwen Route headers and Record-route headers ?
>
> I'll leave this answer to the experts :)
>
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