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 To :  Yate List <yate@v...>
 From :  Paul Chitescu <paulc@v...>
 Subject :  Re: [yate] Problem with NAT
 Date :  Thu, 10 Jun 2010 12:53:27 +0300
Found the problem!

The 1.x.y.z addresses you have inside the NAT are public routable addresses 
(belong to APNIC) so Yate has no hint a NAT is involved.

Yate assumes a NAT exists when a private address appears in Contact but the 
request was received from a public IP. A simple difference in IP address is 
not enough as it can be caused by factors as SIP proxies and/or asymmetric 

The private address ranges are: - (MS APIPA) - - -

Please change the LAN addresses to one of the 3 ranges above at there are many 
applications that would take that as a strong hint of not being routable from 
Internet. Besides that you must never conflict with officially allocated 


On Thursday 10 June 2010 11:50:16 am Alfred Stainer wrote:
> Hi Paul,
> I have Yate directly connected to internet and 2 phones to my home connected
> to internet (my ISP offers ADSL behind a NAT).
> There is no Gateway between Yate and phones.
> I have attached to this email original .pcap files.
> Can be the problem due to the IP assigned to my phones by my ISP?
> Thanks,
> Alfred