I can get the Ethernet library to serve pages OK, but it would be nice to be able to determine the Client IP address. Since most users will connect through various NAT boxes, the address that the browser sees (eg 192.168.0.27) is obviously not the useful one. There are lots of ideas on the interweb …

Client IP address using Ethernet library

zoomkat October 12, 2012, 4:51am 3

The below might be of use.

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