[SR-Users] Port 5060 omitted in Record-Route

[Joel Serrano]

By SIP definition if the port is the default (5060 for udp/tcp, 5061 for
tls) it's not mandatory, that's why if you choose any other port you
specifically see it in the RR.




On Thu, Mar 28, 2019 at 3:30 AM Lợi Đặng <loi.dangthanh at gmail.com> wrote:

> Hi all, i was using kamailio 4.2.1 located in 2 networks
>
>> listen = tcp:MY_ADDR:5060 advertise MY_ADDR:5060
>> listen = tls:MY_ADDR:5061 advertise PUBLIC_NAT_ADDR:5061
>
>
> when the call made from the inside network to out side, running
> `record_route()` resulted in 2 Record-Route headers added
> (enable_double_rr=1)
>
> Record-Route: PUBLIC_NAT_ADDR:5061;transport=tls;lr
>> Record-Route: MY_ADDR;transport=tcp;lr
>
>
> That was totally fine omitting the port in the first Record-Route when
> using tcp (or udp) on the first realm, but when i start switching to tls,
> it caused trouble
>
> Record-Route: PUBLIC_NAT_ADDR:5061;transport=tls;lr
>> Record-Route: MY_ADDR;transport=tls;lr
>
>
> The client is then told to send ACK/BYE to `MY_ADDR;transport=tls` located
> at `MY_ADDR:5061` as per rfc3263, then the call would failed.
>
> I had another try with
> `record_route_preset("PUBLIC_NAT_ADDR:5061;transport=tls",
> "MY_ADDR:5060;transport=tls");`, it really did add what i want with
> explicit 5060 port on RR, `ACK/BYE` travel on the correct path, but
> `loose_route()` only consumes the local `Route` header (it should consume
> 2). So my assumption is to stick with `record_route()` function to make
> `loose_route()` work properly.
>
> I tried using another port on the local realm, e.g: 5062 and the port is
> explicitly added to the Record-Route header `MY_ADDR:5062;transport=tls;lr`
> So is `5060` couldn't be explicitly added to the inbound Record-Route, or
> i just missed something?
>
> Any help will be appreciated.
>
> P/S: I also tried 4.4.7 and it still omit my 5060 port in the RR.
>
> rgds,
> Loi Dang Thanh
> Phone : +84. 774.735.448
> Email : loi.dangthanh at gmail.com
> _______________________________________________
> Kamailio (SER) - Users Mailing List
> sr-users at lists.kamailio.org
> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.kamailio.org/pipermail/sr-users/attachments/20190328/8a916098/attachment.html>