You can effortlessly reset the changes back to default using the -p flag: sudo macchanger -p eth0 Using ip and ifconfig CommandsĪlthough macchanger is easy to use and well-suited for beginners, advanced Linux users who want more control over the operation might prefer using the ip command.īut first, make sure you note down the original MAC address of the interface before modifying it. With macchanger, you don't have to memorize the original MAC address of your device for future reference. To assign a custom MAC address to the eth0 interface: sudo macchanger -m 44:ee:bc:6c:76:ba eth0 where custom-address is the new MAC address you want to assign and interface is the name of the network interface. I can eliminate this message by saving the environment (saveenv) from the u-boot CLI.Sudo macchanger -m custom-address interface This warning seems to never get resolved, through multiple boot cycles:ĭoes this message imply that the default environment is always loading, including the odd ethaddr parameter setting? I also tried setting the ethaddr parameter (without success) at various points, including first boot afterĪlso, I noticed this in the u-boot messages. This MAC address (a2:ce:c4:4a:ae:e4) seems already pre-set in the download install image-I've tried re-flashing several times and always get the same address. *** Warning - bad CRC, using default environment NOTICE: B元1:Rockchip release version: v1.2 Okay, just poked around via the serial console and found that MAC address is hard coded in u-boot:īW=32 Col=10 Bk=8 CS0 Row=15 CS=1 Die BW=16 Size=1024MB
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