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alas, macOS refuses: $ sudo ifconfig en0 ether 00:00:00:00:00:01 ifconfig: ioctl (SIOCAIFADDR): Can't assign requested address edit: but this worked

by varenc 1y ago

alas, macOS refuses: $ sudo ifconfig en0 ether 00:00:00:00:00:01 ifconfig: ioctl (SIOCAIFADDR): Can't assign requested address edit: but this worked on my external NIC! Network wasn't happy though and DHCP didn't work. Ubiquiti had a funny note about this MAC: "Officially Xerox, but 0:0:0:0:0:0 is more common"

mannyv 1y ago
If you stash the IP/netmask/router IP you might be able to get it to work by setting a static IP on the connection with a 0 MAC address. As always, ymmv. On some equipment this may cause a broadcast storm, depending on how they implement things. Cisco equipment with some configs will send a packet to all the ports if it receives a packet and can't figure out where it's supposed to go.