[SR-Users] Record-Route advertised per branch

[Sergiu Pojoga]

I just did this quick POC test which worked as expected, it added a single
RR with public advertised and double RR with both public and private
advertise for the branch that routes to a private interface.

Prerequisites:

   - mhomed=1
   - modparam("rr", "enable_double_rr", 1)
   - listen=YOUR_PUB_IP advertise "your_private_fqdn"
   - listen=YOUR_PRIV_IP advertise "your_priv_fqdn"
   - 10.22.0.0/24 is the private net

Script:

request_route {
   record_route();
   seturi("sip:a at google.com");
   append_branch("sip:b at 10.22.0.1", "1.0");
   t_relay();
}

Give it a try.

On Thu, Jun 16, 2022 at 10:36 AM Sergiu Pojoga <pojogas at gmail.com> wrote:

> Have you tried just *record_route()* with *enable_double_rr* option
> enabled? All things considered, RR should take care of it all by itself,
> per branch.
>
> A script snippet could help.
>
> On Thu, Jun 16, 2022 at 10:05 AM Patrick Karton <patrickarton at hotmail.com>
> wrote:
>
>> It only work for request route.
>>
>> Le 16 juin 2022 14:19, Ilie Soltanici <iliusha.md at gmail.com> a écrit :
>>
>> Hello,
>>
>> Thank you, added it now - still the same, unfortunately.
>>
>> Regards,
>>
>> On Thu, 16 Jun 2022 at 13:29, Sergiu Pojoga <pojogas at gmail.com> wrote:
>>
>> Have you tried calling *t_save_lumps()* before relaying, even before RR?
>>
>> On Thu, Jun 16, 2022 at 7:59 AM Ilie Soltanici <iliusha.md at gmail.com>
>> wrote:
>>
>> Hello,
>>
>> Is there any way to advertise a different IP Address in the Record-Route
>> header individually per branch?
>>
>> I have a setup here - where Kamailio is listening on 2 different
>> interfaces: Local IP and External IP. At the moment if the packet is coming
>> through the internal interface - I'm checking where is it going to and
>> based on that I'm setting the Record-Route header accordingly - and
>> everything works well, except when I have multiple branches: one going
>> through the internal interface and another one through the external one, so
>> in this case, I have to add a different record-route header per branch, by
>> doing this in the branch_route - it's not working and getting the
>> error: w_record_route_advertised_address(): Double attempt to record-route.
>>
>> What would be another way to accomplish this?
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