If you entered your IP address manually, make sure you entered the correct address. An easy way to get a list of MAC to IP addresses on the local subnet is to ping every host on the subnet and then check you ARP cache, however pinging. Close all open apps and restart your computer. Put your computer to sleep, wait a few minutes, then wake it from sleep. Well, you're out of luck unless you can have the client volunteer that information and transmit via other means. Close the app that is using the connection (such as Safari or Messages), then open the app again. #look for the output line describing our IP address #run the external command, break output into lines For information about the correct format for network addresses, see Network address formats and protocols. Type the network address for the computer or server in the Server Address field. So, if you are building some kind of LAN based system and your clients are on the same ethernet segment, then you could get the MAC address by parsing the output of arp -n (linux) or arp -a (windows).Įdit: you ask in comments how to get the output of an external command - one way is to use backticks, e.g. Connect to a computer or server by entering its address In the Finder on your Mac, choose Go > Connect to Server. The client MAC address will not be available to you except in one special circumstance: if the client is on the same ethernet segment as the server. You can get the client IP from $_SERVER Client MAC address Server MAC addressįor the MAC address, you could parse the output of netstat -ie in Linux, or ipconfig /all in Windows. You can get the server IP address from $_SERVER.
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