![]() See the documentation on U-Boot Environment Variables. ip link 1: lo: mtu 16436 qdisc noqueue state UNKNOWN link /loopback 00: 00: 00: 00: 00: 00.To get the same for new ethernet card use the below command. In case you have added a new ethernet card, ifconfig won't show the output of that new device. macchanger (ip link set wls1 down, macchanger -r wls1 ip link set wls1 up). ![]() ![]() I then restart network-manager but not connected to the network yet, the new macchanger assigned mac. now, on Ubuntu 16.04, after running those same commands using. Note that in some systems the ethaddr variable is used by U-Boot itself to configure the MAC address of the first network device, and the Linux network driver may continue to use that address, so you don't need to explicitly pass it into the kernel. But this command will show the MAC details of configured ethernet device. This would assign a new mac address which persisted after network-manager was restarted and a new connection to the network was made. MAC addresses need hexadecimal digits (0-9 and a-f) which you can pick randomly. ![]() I want to change a mac address at the u-boot level like the following. Write into terminal this: ip link set dev xxxx address xx:xx:xx:xx:xx:xx where xxxx is the device and xx:xx:xx:xx:xx:xx is your new MAC address.
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