On Mon, 1 Apr 2024 10:19:50 +0200 Jose Ignacio Tornos Martinez wrote: > if (is_valid_ether_addr(mac)) { > eth_hw_addr_set(dev->net, mac); > + dev->net->addr_assign_type = NET_ADDR_PERM; Are we 100% sure we won't read back the random address we wrote earlier? Maybe let's put the assignment under if (!is_local_ether_addr(mac)), just to be on the safe side?