On 08/13/2013 12:03 PM, Daniel-Constantin Mierla wrote:
> Hello,
>
> you should grab the ngrep for such call to understand better what happens. 
> Also, dumping the location records will be
> useful (kamctl ul show).
>
> Also, be sure that tcp connection lifetime is long enough to survive 
> re-registration. To avoid trying to open
> connections behind nat, use set_forward_no_connect() for calls involving nat 
> traversal.

I'm using the default conf coming from fedora rpm. So, mainly the problem seems 
related to kamailio
which doesn't reuse the TCP port used by NATed clients. I've also notice that 
the received
field isn't set at all, so this means that the contact will not get aliased at 
all.

I would really like to have a look to a working cfg file for TCP NATed clients 
that reuse the TCP port.
Even better if the configuration is based on the fedora default rpm.

Cheers,
Roberto Fichera.

>
> Cheers,
> Daniel
>
> On 7/30/13 6:44 PM, Roberto Fichera wrote:
>> Hi All,
>>
>> Sorry for cross-posting this email to PJLIB, but maybe there are some things 
>> related.
>> Anyhow! I'm having problems on kamailio v4.0.2 under Fedora 18 64bit and TCP 
>> client like iPhone using PJSIP as SIP
>> library.
>> Basically once the iPhone side in close the call (TCP->UDP) I'm getting the 
>> error below. Kamailio is running under a VPS
>> without
>> NATed network so it uses a real public address. Furthermore, note that 
>> tcp_main is answering to a 192.168.2.98 ip
>> address
>> which is the iPhone client. This looks really strange to me since it should 
>> answer directly to the public/port used for
>> the registration
>> and not to a such kind of reserved address. The kamilio configuration is 
>> basically the default with a very few changes
>> like NAT, rtpproxy and postgresql backend.
>>
>> This problems doesn't happen at all when using UDP->UDP calls. But I cannot 
>> use it because as you certain know UDP
>> connection under iPhone will not work when the application run in background 
>> mode.
>>
>> Can someone suggest how to solve this issue or maybe suggest a TCP working 
>> solution for iPhone?
>>
>> Thanks in advance.
>> Roberto Fichera.
>>
>> Jul 30 16:21:53 proxy /usr/sbin/kamailio[9502]: ERROR: <core> 
>> [tcp_main.c:4432]: tcpconn_main_timeout(): connect
>> 192.168.2.98:5060 failed (timeout)
>> Jul 30 16:21:55 proxy rtpproxy[2262]: DBUG:get_command: received command 
>> "9483_9 D
>> 12d1d19926c4ff742a52f0c855b1bb83@94.94.x.x:5060 as74e0c388 
>> GROahimCK6KTrl5CkYEg7nuoPIIXZ8cj"
>> Jul 30 16:21:55 proxy rtpproxy[2262]: INFO:handle_delete: forcefully 
>> deleting session 1 on ports 15604/17354
>> Jul 30 16:21:55 proxy rtpproxy[2262]: INFO:remove_session: RTP stats: 354 in 
>> from callee, 603 in from caller, 957
>> relayed, 0 dropped
>> Jul 30 16:21:55 proxy rtpproxy[2262]: INFO:remove_session: RTCP stats: 5 in 
>> from callee, 2 in from caller, 7 relayed, 0
>> dropped
>> Jul 30 16:21:55 proxy rtpproxy[2262]: INFO:remove_session: session on ports 
>> 15604/17354 is cleaned up
>> Jul 30 16:21:55 proxy rtpproxy[2262]: DBUG:doreply: sending reply "9483_9 0
>> Jul 30 16:21:55 proxy rtpproxy[2262]: "
>> Jul 30 16:22:04 proxy /usr/sbin/kamailio[9502]: ERROR: <core> 
>> [tcp_main.c:4432]: tcpconn_main_timeout(): connect
>> 192.168.2.98:5060 failed (timeout)
>> Jul 30 16:22:14 proxy rtpproxy[2262]: DBUG:get_command: received command 
>> "9496_16 D
>> 12d1d19926c4ff742a52f0c855b1bb83@94.94.x.x:5060 
>> GROahimCK6KTrl5CkYEg7nuoPIIXZ8cj as74e0c388"
>> Jul 30 16:22:14 proxy rtpproxy[2262]: INFO:handle_command: delete request 
>> failed: session
>> 12d1d19926c4ff742a52f0c855b1bb83@94.94.x.x:5060, tags 
>> GROahimCK6KTrl5CkYEg7nuoPIIXZ8cj/as74e0c388 not found
>> Jul 30 16:22:14 proxy rtpproxy[2262]: DBUG:doreply: sending reply "9496_16 E8
>> Jul 30 16:22:14 proxy rtpproxy[2262]: "
>>
>>
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