Hi,
For billing and licensing reasons in our product, I need to be able to identify 
machines when they connect to our server... 

The issue that we have is that these machines may be behind a NAT firewall and we dont 
see the real IP of the machine... 

Is there any way at all to identify a socket connection as belonging to a certain 
machine other than just IP address?  For example, would I be able to look at the TCP 
packets acknowledge numbers and that in combo with the IP would give me some idea of 
the machines behind the NAT?

Thanks
Lyle
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