[OpenSIPS-Users] OpenSIPS does not reuse existing TLS-connections on outbound requests

[Bogdan-Andrei Iancu]

Hi Franz,

OpenSIPS do reuses the TCP connections, but there are some conditions 
for this to happen - when something needs to be sent out via TCP, first 
i s checked if there is  an already existing connection  to the source 
IP and  port. If so, it will be reused.

So, you say that the the clients do register via TCP (and the 
connections are up) via C1 and C2. Now one of the clients tries to call 
the other one, so the call is sent out (let;s say) via C1 to opensips 
and opensips is failing to deliver the call via C2 to the second client, 
right?

Regards,
Bogdan

Franz Edler wrote:
> Hi all,
>
> I have successfully setup the OpenSIPS v1.5.1 with TLS and registering my
> two eyebeam clients for alice and bob is o.k.
>
> The problem is now that on a session setup between both clients OpenSIPS
> does not reuse the existing TLS connection for the outbound INVITE request
> but sets up a new TCP connection which is terminated by the client.
>
> I see the following logs on the console:
>    ERROR:core:tls_connect: SSL_ERROR_SYSCALL err=Success(0)
>
>    ERROR:core:tls_connect: something wrong in SSL: 5 (ret=0) err=Success(0)
>
>    ERROR:core:tcp_send: failed to send
>
>    ERROR:tm:msg_send: tcp_send failed
>
>    ERROR:tm:t_forward_nonack: sending request failed
>
> I have set the "tls_send_timeout" to 120sec and have also enabled SIP
> keep-alives at the eyebeam clients. The clients send keep-alives every 30sec
> via the TLS connections, but OpenSIPS does not reuse these connections.
>
> Any hints what might be wrong?
>
> Regards
> Franz
>
>
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