[OpenSIPS-Users] Best practice NAT and keepalive

[Adrian Georgescu]

Have your tried the nat_traversal module available in OpenSIPS? There  
is documentation with it that explains how to solve these situations.

Adrian

On Apr 9, 2009, at 3:04 PM, Uwe Kastens wrote:

> Adrian,
>
> To be more specific:
> - the router is not blocking sip - no sip-alg
> - the timeout for the nat seems to be lower than the timeout for the
> registration.
> So the router will simply cut the connection for the reverse nat. So  
> the
> invites to the UA behind the router are "running" on a closed port.
>
> I would like to have a solution to solve this for the most UA -  
> without
> any configuration issue on the UA or the router.
>
> BR
>
> uwe
>
>
>
>> Uwe,
>>
>> It really depends on how strange is strange. Is this about routers  
>> that
>> seem to block incoming SIP traffic? There is a topic about this on
>> http://voip-info.org search for SIP ALG.
>>
>> If is about something else maybe you can define strange and other  
>> people
>> might help.
>>
>> Adrian
>>
>>
>> On Apr 9, 2009, at 2:43 PM, Uwe Kastens wrote:
>>
>>> Hello,
>>>
>>> I am searching for a solution for some SIP Clients which are  
>>> behind some
>>> strange router. What is the best way to handle this? Send keepalive
>>> messages from the router to the UA or force the UA to send keepalive
>>> packages.
>>>
>>> I think a can handle this by modparam("nathelper", "sipping_method",
>>> "INFO")?
>>>
>>> BR
>>>
>>> Uwe
>>>
>>> -- 
>>>
>>> kiste lat: 54.322684, lon: 10.13586
>>>
>>> _______________________________________________
>>> Users mailing list
>>> Users at lists.opensips.org <mailto:Users at lists.opensips.org>
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>>
>
>
> -- 
>
> kiste lat: 54.322684, lon: 10.13586

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