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

[Daniel-Constantin Mierla]

Hello,

not sure I understood properly, but if you want to use port 5060 for
both tcp and tls is not working. Better just use it for tls only.

Cheers,
Daniel

On 29.03.19 03:26, Lợi Đặng wrote:
> Hi Joel, thanks for verification, it was ok to me when using the
> default 5060 for udp/tcp with port omitted in the RR, the calls should
> be routed properly.
> But it don't work if i use the same port 5060 for tls (i know this is
> a bit weird, but i want to re-use the port due to customer firewall
> restriction), the port is still omitted and `ACK/BYE` routed wrongly
> to *MY_ADDR;transport=tls* (5061).
>
> I only want to make sure whether it is not able to explicitly add 5060
> port to the RR when using tls or i just make it wrong with my
> configuration.
>
> rgds,
> Loi Dang Thanh
> Phone : +84. 774.735.448
> Email : loi.dangthanh at gmail.com <mailto:loi.dangthanh at gmail.com>
>
>
> On Thu, Mar 28, 2019 at 10:19 PM Joel Serrano <joel at textplus.com
> <mailto:joel at textplus.com>> wrote:
>
>     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
>     <mailto: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 <mailto:loi.dangthanh at gmail.com>
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-- 
Daniel-Constantin Mierla -- www.asipto.com
www.twitter.com/miconda -- www.linkedin.com/in/miconda
Kamailio World Conference - May 6-8, 2019 -- www.kamailioworld.com

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