[SR-Users] Multiple IPs

[Alex Balashov]

Also, to correct a previous statement: it does seem that Kamailio attempts to resolve the reverse DNS entries of its listeners on boot. That can be disabled via DNS core configuration parameters. It can also be ignored as it's of no concern to this scenario. 

On November 3, 2017 11:06:57 AM EDT, Alex Balashov <abalashov at evaristesys.com> wrote:
>That's probably because the mhomed test, as described in the docs,
>determines that this should be the outbound interface. 
>
>On November 3, 2017 10:51:06 AM EDT, Oz Mortimer <omortimer at gmail.com>
>wrote:
>>Ok,
>>
>>So sort of progress..
>>
>>With mhomed=0 the calls arrive at the media server from the IP the
>call
>>was sent to,
>>With mhomed=1 the calls arrive at the media server from the first
>>registered IP address regardless of which IP the call was sent to.
>>
>>So mhomed is doing the reverse of what I would expect…
>>
>>
>>> On 3 Nov 2017, at 14:43, Alex Balashov <abalashov at evaristesys.com>
>>wrote:
>>> 
>>> I would not be concerned about superficial errors.
>>> 
>>> I am more concerned that the system is attempting to "resolve" an IP
>>address. This would only happen if its format is not deemed to be that
>>if an IP address. 
>>> 
>>> On November 3, 2017 10:38:41 AM EDT, Oz Mortimer
>><omortimer at gmail.com> wrote:
>>>> nb. I only get 
>>>>>> fix_hostname(): could not rev. resolve
>>>>>> xxx.xxx.xxx.xxx
>>>> 
>>>> When mhomed=1
>>>> 
>>>> 
>>>> 
>>>>> On 3 Nov 2017, at 14:21, Alex Balashov <abalashov at evaristesys.com>
>>>> wrote:
>>>>> 
>>>>> Are you sure the IP is correct? 
>>>>> 
>>>>> On November 3, 2017 10:20:17 AM EDT, Oz Mortimer
>>>> <omortimer at gmail.com> wrote:
>>>>>> Ok - did that and got the same error, though this time I looked
>at
>>>> what
>>>>>> it was;
>>>>>> Im /var/log/messages I see - 
>>>>>> Nov  3 14:13:28 IS-56434 kamailio: WARNING: <core>
>>>>>> [socket_info.c:1392]: fix_hostname(): could not rev. resolve
>>>>>> xxx.xxx.xxx.xxx
>>>>>> Nov  3 14:13:28 IS-56434 kamailio: WARNING: <core>
>>>>>> [socket_info.c:1392]: fix_hostname(): could not rev. resolve
>>>>>> xxx.xxx.xxx.xxx
>>>>>> Nov  3 14:13:28 IS-56434 kamailio: WARNING: <core>
>>>>>> [socket_info.c:1392]: fix_hostname(): could not rev. resolve
>>>>>> xxx.xxx.xxx.xxx
>>>>>> Nov  3 14:13:28 IS-56434 kamailio: WARNING: <core>
>>>>>> [socket_info.c:1392]: fix_hostname(): could not rev. resolve
>>>>>> xxx.xxx.xxx.xxx
>>>>>> Nov  3 14:13:28 IS-56434 kamailio: WARNING: <core>
>>>>>> [socket_info.c:1392]: fix_hostname(): could not rev. resolve
>>>>>> xxx.xxx.xxx.xxx
>>>>>> Nov  3 14:13:28 IS-56434 kamailio: WARNING: <core>
>>>>>> [socket_info.c:1392]: fix_hostname(): could not rev. resolve
>>>>>> xxx.xxx.xxx.xxx
>>>>>> Nov  3 14:13:28 IS-56434 kamailio: WARNING: <core>
>>>>>> [socket_info.c:1392]: fix_hostname(): could not rev. resolve
>>>>>> xxx.xxx.xxx.xxx
>>>>>> Nov  3 14:13:28 IS-56434 kamailio: WARNING: <core>
>>>>>> [socket_info.c:1392]: fix_hostname(): could not rev. resolve
>>>>>> xxx.xxx.xxx.xxx
>>>>>> Nov  3 14:13:28 IS-56434 kamailio: WARNING: <core>
>>>>>> [socket_info.c:1392]: fix_hostname(): could not rev. resolve
>>>>>> xxx.xxx.xxx.xxx
>>>>>> Nov  3 14:13:28 IS-56434 kamailio: WARNING: <core>
>>>>>> [socket_info.c:1392]: fix_hostname(): could not rev. resolve
>>>>>> xxx.xxx.xxx.xxx
>>>>>> Nov  3 14:13:28 IS-56434 kamailio: WARNING: <core>
>>>>>> [socket_info.c:1392]: fix_hostname(): could not rev. resolve
>>>>>> xxx.xxx.xxx.xxx
>>>>>> Nov  3 14:13:28 IS-56434 kamailio: WARNING: <core>
>>>>>> [socket_info.c:1392]: fix_hostname(): could not rev. resolve
>>>>>> xxx.xxx.xxx.xxx
>>>>>> 
>>>>>> Although the IP address’ are correct...
>>>>>> 
>>>>>> 
>>>>>>> On 3 Nov 2017, at 14:06, Alex Balashov
>><abalashov at evaristesys.com>
>>>>>> wrote:
>>>>>>> 
>>>>>>> On Fri, Nov 03, 2017 at 02:04:37PM +0000, Oz Mortimer wrote:
>>>>>>> 
>>>>>>>> I have listen commented out - which means it listens on all IPs
>>>>>>>> (doesn’t it?) - do I need to set them explicitly?
>>>>>>> 
>>>>>>> Try setting them explicitly, so that you can route them
>>explicitly.
>>>>>>> 
>>>>>>>> I did add mhomed=1 on this setup - but the calls went a bit
>>crazy
>>>> (I
>>>>>>>> didn’t manage to capture quite what was happening).
>>>>>>> 
>>>>>>> Unfortunately, without knowing the specific facts, it's hard to
>>>>>>> speculate.
>>>>>>> 
>>>>>>> -- 
>>>>>>> Alex Balashov | Principal | Evariste Systems LLC
>>>>>>> 
>>>>>>> Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free) 
>>>>>>> Web: http://www.evaristesys.com/, http://www.csrpswitch.com/
>>>>>>> 
>>>>>>> _______________________________________________
>>>>>>> Kamailio (SER) - Users Mailing List
>>>>>>> sr-users at lists.kamailio.org
>>>>>>> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>>>>>> 
>>>>>> 
>>>>>> _______________________________________________
>>>>>> Kamailio (SER) - Users Mailing List
>>>>>> sr-users at lists.kamailio.org
>>>>>> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>>>>> 
>>>>> 
>>>>> -- Alex
>>>>> 
>>>>> --
>>>>> Sent via mobile, please forgive typos and brevity. 
>>>>> 
>>>>> _______________________________________________
>>>>> Kamailio (SER) - Users Mailing List
>>>>> sr-users at lists.kamailio.org
>>>>> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>>>> 
>>>> 
>>>> _______________________________________________
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>>> 
>>> 
>>> -- Alex
>>> 
>>> --
>>> Sent via mobile, please forgive typos and brevity. 
>>> 
>>> _______________________________________________
>>> Kamailio (SER) - Users Mailing List
>>> sr-users at lists.kamailio.org
>>> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>>
>>
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>
>
>-- Alex
>
>--
>Sent via mobile, please forgive typos and brevity. 
>
>_______________________________________________
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-- Alex

--
Sent via mobile, please forgive typos and brevity.