[OpenSIPS-Users] Problems with goes_to_gw Drouting

[Bogdan-Andrei Iancu]

Got it - it looks like the problem is that  goes_to_gw() checks IP 
versus IP - the IP from RURI versus the IPs of the GWs.........But in 
your case the RURI does not have an IP in the RURI, but a name, so the 
function fails without doing any kind of checks.

goes_to_gw() was mainly designed for checking the destination of the 
sequential requests where IPs are involved.

May I ask why do you call goes_to_gw() after do_routing() ? I mean, 
after do_routing() it is pretty sure the call will go to a gw.

Regards,
Bogdan


Sven Schulz wrote:
> After hitting do_routing, the RURI contains the DNS name of the selected gw.
> Because I have the DNS name entered in dr_gateways. If I change the DNS name
> in dr_gateways to the correct IP, the goes_to_gw function works.
>
>
> On 11/2/10 8:34 AM, "Bogdan-Andrei Iancu" <bogdan at voice-system.ro> wrote:
>
>   
>> and when calling goes_to_gw(), what the current RURI contains: the IP or
>> the name ?
>>
>> Bogdan
>>
>> Sven Schulz wrote:
>>     
>>> Yes that is the correct IP. But the IP address works fine, its the DNS name
>>> shown in the output below that doesn't work in goes_to_gw.
>>>
>>>
>>> On 11/2/10 5:21 AM, "Bogdan-Andrei Iancu" <bogdan at voice-system.ro> wrote:
>>>
>>>   
>>>       
>>>> Hi Sven,
>>>>
>>>> So the IP 146.186.136.146 is the correct one you are trying to detect
>>>> via goes_to_gw() and does not work? If so, I can provide you a small
>>>> patch for extra debugging to doublechecks the checks in goes_to_gw()
>>>>
>>>> Regards,
>>>> Bogdan
>>>>
>>>> Sven Schulz wrote:
>>>>     
>>>>         
>>>>> Yes I believe Im seeing it resolve when I reload drouting:
>>>>>
>>>>> Oct 29 13:22:14 testsipcore1 /sbin/opensips[9313]: DBG:core:get_record:
>>>>> lookup(sbcma.sip.psu.edu, 35) failed
>>>>> Oct 29 13:22:14 testsipcore1 /sbin/opensips[9313]:
>>>>> DBG:core:sip_resolvehost:
>>>>> no valid NAPTR record found for sbcma.sip.psu.edu, trying direct SRV
>>>>> lookup... 
>>>>> Oct 29 13:22:14 testsipcore1 /sbin/opensips[9313]: DBG:core:get_record:
>>>>> lookup(_sip._udp.sbcma.sip.psu.edu, 33) failed
>>>>> Oct 29 13:22:14 testsipcore1 /sbin/opensips[9313]:
>>>>> DBG:core:sip_resolvehost:
>>>>> no valid SRV record found for _sip._udp.sbcma.sip.psu.edu, trying A record
>>>>> lookup... 
>>>>> Oct 29 13:22:14 testsipcore1 /sbin/opensips[9313]: DBG:drouting:add_dst:
>>>>> first gw ip addr [146.186.136.146]
>>>>>
>>>>> BTW, reloading drouting with 30,000+ routes and debug=6 takes a little
>>>>> while
>>>>> :)
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> On 10/29/10 11:58 AM, "Bogdan-Andrei Iancu" <bogdan at voice-system.ro> wrote:
>>>>>
>>>>>   
>>>>>       
>>>>>           
>>>>>> Hi Sven,
>>>>>>
>>>>>> and it debug=6 do you see in the logs the messages I mentioned ?
>>>>>>
>>>>>> Regards,
>>>>>> Bogdan
>>>>>>
>>>>>> Sven Schulz wrote:
>>>>>>     
>>>>>>         
>>>>>>             
>>>>>>> HI Bogden,
>>>>>>>
>>>>>>> I thought this param was enabled by default? But I set it anyways and it
>>>>>>> doesn't make a difference.
>>>>>>>
>>>>>>>
>>>>>>> On 10/23/10 6:57 AM, "Bogdan-Andrei Iancu" <bogdan at voice-system.ro>
>>>>>>> wrote:
>>>>>>>
>>>>>>>   
>>>>>>>       
>>>>>>>           
>>>>>>>               
>>>>>>>> Hi Steven,
>>>>>>>>
>>>>>>>> do you have enabled the "force_dns" param:
>>>>>>>> http://www.opensips.org/html/docs/modules/1.6.x/drouting.html#id294469
>>>>>>>> ?
>>>>>>>>
>>>>>>>> in latest SVN 1.6.3, in debug mode, you should see some messages (at
>>>>>>>> startup) like :
>>>>>>>> first gw ip addr [xxxxx]
>>>>>>>> additional gw ip addr [xxxx]
>>>>>>>>
>>>>>>>> indicating the DNS resolving of GWs defined by names.
>>>>>>>>
>>>>>>>> Regards,
>>>>>>>> Bogdan
>>>>>>>>
>>>>>>>> Sven Schulz wrote:
>>>>>>>>     
>>>>>>>>         
>>>>>>>>            
>>>>>>>>                 
>>>>>>>>> Using opensips 1.6.3 SVN # 7282
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> I noticed that if I have a gateway defined in the dr_gateways tables
>>>>>>>>> as a hostname, the goes_to_gw function never works (it gets skipped).
>>>>>>>>> But if I change that hostname to an IP address, the function works
>>>>>>>>> properly. Is this how its supposed to function or is it a bug?
>>>>>>>>>
>>>>>>>>> do_routing()
>>>>>>>>> if (goes_to_gw("2")) {
>>>>>>>>> xlog ("the GW type is 2");
>>>>>>>>> setflag(10);
>>>>>>>>> route(4);
>>>>>>>>> exit;
>>>>>>>>> }
>>>>>>>>>
>>>>>>>>> For example, the above code only works if the gateway is defined as
>>>>>>>>> ³10.1.1.5² not ³test.something.com². The gw type field is always set
>>>>>>>>> to ³2².
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>                   


-- 
Bogdan-Andrei Iancu
OpenSIPS Bootcamp
15 - 19 November 2010, Edison, New Jersey, USA
www.voice-system.ro