Generate random Mac Address as follows: $. Make the script executable: chmod +x mac.sh IFS= read -d '' -r -n 1 char < /dev/urandom vim mac.shĪdd the following to the file above: #!/bin/bash You can generate random Mac Address on Linux using shell script.Ĭreate a script file mac.sh as shown below. Another situation is connecting your computers through NAT, which prevents the VMs’ mac addresses from being exposed to the rest of the network. The virtual machines will be connected to the network via a virtual switch, allowing other devices to view each VM’s unique MAC address. It forwards packets without modifying the MAC address, as is typical of a bridge. The virtual server’s MAC address is utilized continuously, most hosts employ transparent bridging to forward packets to the virtual adapters they are hosting. MAC addresses range from 00-00-00-00-00-00 to FF-FF-FF-FF-FF-FF The first half of the number is usually used as a manufacturer ID, while the second half is usually used as a device identification.
MAC addresses are responsible for transmitting data to the relevant device on the Data Link layer in the OSI model of networking. The ability to uniquely identify millions of devices connected to the internet is due to MAC addresses. During the manufacturing process, each device is given a unique MAC address. Because it is embedded in the device’s Network Interface Card (NIC), it is also known as the physical address of the computer.
Welcome to today’s guide on how to generate and change Mac Address on a Linux Machine.