[Serusers] 2 questions regarding user location

[Greger V. Teigre]

Kyriakos wrote:
>
> Hi,
>
>    I have two questions regarding  user location.
>
>  
>
> 1) Is there a way of getting the user location info for manipulating 
> it in ser.cfg ? Something like lookup but without rewriting anything. 
> Basically what I want to do is check if the caller and the caller are 
> NATed and belong to a certain same network then I should not use media 
> proxy. The criterion for the same network would be that both sides are 
> originating from the same  public ip.  Thus I would have to retrieve 
> the "received" field value for the calee  and compare it with the ip 
> contained in the contact header field of the caller in the INVITE . 
>    Perhaps there is also another way to do this?
>
Not that I know of. However, cvs head has a new type of route where you 
can access the actual destination ip and port.
>
>  
>
> 2) What happens when I have multiple phones registered under one user? 
> How lookup(location) works when I have more than one ips in location 
> table for the user? During tests I had a UA  behind NAT  registering 
> to SER with an ip assigned from the dhcp. After a while I had the UA 
> assigned a different ip from the dhcp and the Register on SER under 
> the same user name. The problem was that during registration SER would 
> respond back to the UA for requesting authorisation credentials but 
> when it was time to send the 200 OK message for registration , it 
> would send it only to the previous location of the UA and not the one 
> it sent the REGISTER message from with of course failure to register 
> because UA would not get the OK from SER. I noticed that in Contact 
> header of the 200 message there were more than one return ips (the old 
> one and the new one), Of course as soon as the old location timed out 
> the registration would go ok.
>
>  
>
This has nothing to do with how location works. A new REGISTER should 
not NOT hit lookup(location), so you have an error in your script. You 
should run fix_nated_register() on the message. By default, SER will 
respond to the rcvd address and not Contact if they are different.
g-)
>
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> Thanks
>
> KM
>
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>
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