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MAC serves a unique role in identifying these network interfaces through system protocols and programs.įor example, through DHCP ( Dynamic Host Control Protocol), a network interface is assigned an IP address by a network router automatically. The wireless and Ethernet network modules are examples of commonly used network interfaces on a Linux operating system.

Mode:Managed Frequency:2.Every network interface on your Linux operating system distribution is associated with a unique number called MAC ( Media Access Control). TX errors 0 dropped 0 overruns 0 carrier 0 collisions sudo iwconfig TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0ĭevice interrupt 20 memory 0xd4800000-d4820000 What causes that and how to stop it?Ĥ4:00.0 Network controller : Broadcom Limited BCM4313 802.11bgn Wireless Network Adapter (rev uname -a With every disconnect I get a different random MAC address which fades on reconnecting, giving me my real MAC address. Permanent MAC: 00:00:00:00:00:00 (FAKE CORPORATION)Īfter disconnecting: macchanger -s wlp68s0b1Īfter reconnecting: macchanger -s wlp68s0b1Ĭurrent MAC: 00:00:00:00:00:00 (FAKE CORPORATION)Īnd so on. While connecting after boot: macchanger -s wlp68s0b1Ĭurrent MAC: 00:22:31:c6:38:45 (SMT&C Co., Ltd.)

Here is what happens when I disconnect and reconnect: I changed my MAC address with macchanger -A wlp68s0b1 at boot with crontab,