How can I get a MAC address from an HTTP request?
问题 Can someone give me some pointers on picking up the user\'s MAC address from an HTTP request? The users will be from outside my network. 回答1: It depends on your network setup. But probably no. Here is a short refresher on Ethernet and IP. The MAC address is a unique address of the network card. It is used to identify for which user on the network segment a packet is. You can use ARP to get a MAC address for an IP address. But this works as expected only if you are on the same network segment