[OpenSIPS-Users] identifying characteristics appear through b2b top hiding

[Anca Vamanu]

Hi Jeff,

Now this problem with IP address in from tag is fixed. Now the tag is no 
longer obtained by concatenating the callid with the from tag in the 
previous message, but an MD5 function is applied on the two.

Regards,

-- 
Anca Vamanu
www.voice-system.ro



Bogdan-Andrei Iancu wrote:
> Hi Jeff,
>
> Jeff Pyle wrote:
>> Anca,
>>
>> It seems the new From tag is constructed from the call-id of the 
>> originating INVITE.  Many UAs include their IP address in the 
>> call-id.  As such the true originating IP address makes it through 
>> the top-hiding scenario.
>>   
> indeed, that might be a problem!
>> A second place it seems to make it through is the owner of the SDP.
>>
>> It's in the connection info as well, but we can take care of that 
>> with rtpproxy or Mediaproxy.  No problem here.
>>   
> yes, the b2b module take care of signalling - for SDP you need to use 
> a media relay.
>> Are there any user-configurble options to minimize the exposure of 
>> the original IP?
>>   
> in SDP ? if so, nathelper module has the a flag for it - see "o" in:
>    
> http://www.opensips.org/html/docs/modules/1.6.x/nathelper.html#id271384
>
> Regards,
> Bogdan
>>
>> Regards,
>> Jeff
>> _______________________________________________
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>> Users at lists.opensips.org
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>>
>>   
>
>