It will be very nice if I can use the same method on Mac, Linux and Windows machines.Īs far as I know, I have to broadcast a ARP packet to the network in order to retrieve a MAC address from a known IP address. I would like to know how to retrieve the IP address in a more sophisticated way. Find the known MAC address and the corresponding IP address from the list.Execute arp -a to print a list of IP and MAC addresses.Execute ping command ping 192.168.0.2 (NOTE: the instrument does not respond to ping).But I need to know the IP address before opening a socket (WinSock on Windows, sys/socket on OS X and Linux).Ĭurrently I use a very dirty way as shown below. I would like to write a C/C++ application which talks with the instrument using a socket connection. I know the MAC address of the instrument, but please assume that its IP address is unknown. The PC and the instrument are directly connected over a UDP socket with a CAT5 cable. In my case, there are only two devices: a very normal PC (192.168.0.1) and a scientific instrument which has an arbitrary IP address (192.168.0.xxx) hard coded in its ROM. If you do not see your operating system listed, refer to your device’s user manual or product support website.I am looking for an easy way to convert a MAC address to the corresponding IP address in a local network.

If this does not work, refer to your device’s user manual. In most cases, you can follow this procedure to locate your MAC address:Ī WiFi Address or WiFi MAC Address displays. This is your device’s MAC address.Ī Wi-Fi Address displays. Select Apple Icon > System Preferences > Network > Advanced.Ī WiFi Address or Airport Address displays.This is your computer’s Ethernet MAC address. Under Ethernet adapter Wireless Network Connection, a Physical Address displays. In the command prompt, type ipconfig /all.The physical address is your device’s MAC address. Click Windows Start or press the Windows key.Ī physical address displays for each adapter.You can block or allow service to a specific device if you know its MAC address.Ĭlick the link for your operating system: If your computer has multiple network adapters (for example, an Ethernet adapter and a wireless adapter), each adapter has its own MAC address. Follow the steps for the operating system that you use.Įxample of a MAC address: 00:00:00:a1:2b:ccĮvery device connected to your home network has a unique MAC address. Follow these instructions to find your computer or mobile device’s media access control address (MAC address).

How to get mac ip address