Unfortunatly relying on IPs isn't going to work. Proxies and related technology mean that you cannot reliably map IP addresses to individuals. Multiple users can come from a single IP, and a single user can come from multiple IPs.

I'd stick with the cookies :-)

In reply to Re: Trace HTTP users by NAT header information by adrianh
in thread Trace HTTP users by NAT header information by willi wusel

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