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

[Jeff Pyle]

Indeed.  Looks and works very well.


- Jeff


On Apr 14, 2010, at 7:10 AM, Anca Vamanu wrote:

> 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
>>> _______________________________________________
>>> Users mailing list
>>> Users at lists.opensips.org
>>> http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>>> 
>>> 
>> 
>>