[OpenSIPS-Users] 408 Request Timeout with UDP

[Nabeel]

Hi,

I see the cause now on the UAC side; I know it seems simple to just add
some DNS records to the server IP,  but I'm still pondering on the best way
to solve this and where exactly to add the SRV records because:

1) I already have the SRV records set up on the actual hostname / domain,
hosted by a DNS service third party, which is easier for me to maintain.
However the UAC seems to be ignoring this.

2) I have used the same UAC with another server and did not have to set up
SRV on the actual server machine IP.

I'm not sure if this has anything to do with the OpenSIPS config but I'll
let you know if I solve it.
On 24 Aug 2015 17:56, "Bogdan-Andrei Iancu" <bogdan at opensips.org> wrote:

> Hi ,
>
> So, is the problem solved (by your findings in the UAS side) ?
>
> Regards,
>
> Bogdan-Andrei Iancu
> OpenSIPS Founder and Developerhttp://www.opensips-solutions.com
>
> On 24.08.2015 18:25, Nabeel wrote:
>
> I just discovered that the SIP client logs show an error message only on
> the recipient side, not on the caller's side.  I missed this previously
> because the caller's side log does not show any error:
>
> java.lang.Exception: No DNS SRV or A results found for: 162.242.153.259
>>  (IP address of OpenSIPS server).
>
>
> I have the SRV records set on the actual hostname/domain, but it seems to
> be looking for SRV at the actual IP address itself.
>
> On 21 August 2015 at 17:57, Nabeel <nabeelshikder at gmail.com> wrote:
>
>> The log doesn't show any errors when the Timeout occurs, it only shows
>> this:
>>
>> opensips[1842]: ACC: call missed:
>>> timestamp=1440174643;method=INVITE;from_tag=z9hG4bK04147190;to_tag=;call_id=
>>> 424618310389 at 10.137.181.237;code=408;reason=Request Timeout
>>>
>>
>>
>> This seems to occur sporadically; some calls connect without problem but
>> others don't; so perhaps it is a genuine timeout... maybe it simply longer
>> to connect on some calls?
>>
>>
>> On 21 August 2015 at 17:46, Nabeel <nabeelshikder at gmail.com> wrote:
>>
>>> Sorry to bring this up again, but I still get the 408 Request Timeout on
>>> some calls.
>>>
>>> Isn't there just a way to increase the request timeout limit?
>>>
>>> Here is the trace:
>>>
>>> http://pastebin.com/jvCPGYDu
>>>
>>> There is even an ACK in the trace after the request timeout message, but
>>> the call doesn't connect.
>>>
>>> On 7 August 2015 at 18:10, Bogdan-Andrei Iancu <bogdan at opensips.org>
>>> wrote:
>>>
>>>> Indeed,
>>>>
>>>> Bogdan-Andrei Iancu
>>>> OpenSIPS Founder and Developerhttp://www.opensips-solutions.com
>>>>
>>>> On 07.08.2015 20:08, Nabeel wrote:
>>>>
>>>> You mean like this, right?
>>>>
>>>> if (is_method("REGISTER"))
>>>>
>>>> {
>>>> if (   0 ) setflag(TCP_PERSISTENT);
>>>>
>>>>                 setbflag(SIP_PING_FLAG);
>>>>
>>>> if (!save("location"))
>>>> sl_reply_error();
>>>>
>>>> exit;
>>>> }
>>>>
>>>>
>>>>
>>>> On 7 August 2015 at 17:52, Bogdan-Andrei Iancu <bogdan at opensips.org>
>>>> wrote:
>>>>
>>>>> Hi Nabeel,
>>>>>
>>>>> Bogdan-Andrei Iancu
>>>>> OpenSIPS Founder and Developerhttp://www.opensips-solutions.com
>>>>>
>>>>> On 07.08.2015 19:39, Nabeel wrote:
>>>>>
>>>>> [........]
>>>>> Bogdan,
>>>>>
>>>>> Regarding UDP, I realised that the UDP port could not be in LISTEN
>>>>> state and this was probably preventing my server from fully opening that
>>>>> port.  Running nmap on that port showed result "open|filtered", unlike with
>>>>> TCP which showed fully open.  I am not running any firewalls on my server,
>>>>> so this seems to be the default behaviour of my network.
>>>>>
>>>>> A bidirectional traffic through the NAT will keep the NAT pinhole
>>>>> open, while a unidirectional one may not. This is the advantage of the SIP
>>>>> pinging versus simple UDP pinging.
>>>>>
>>>>>
>>>>> I would like to clarify one thing.  You mentioned adding
>>>>> setbflag(SIP_PING_FLAG) before doing save(), but in my config file I don't
>>>>> see save() anywhere, there is only this line: "if (!save("location"))".
>>>>> Where exactly do I add this line?
>>>>>
>>>>> exactly.
>>>>>
>>>>> Regards,
>>>>> Bogdan
>>>>>
>>>>>
>>>>
>>>>
>>>
>>
>
>
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