MAC 00:00:00:00:00?

Question

linux

There is an IP-KVM Dlink, it glitched now it has a poppy on the network card 00:00:00:00:00, Cisco drops packets with such a poppy, I also tried it through nat with a router on DD-WRT, it also blocks :( If you just connect through an unmanaged switch, then Windows pings its ip.Maybe
someone knows how to work with such a device through nat or masking, it doesn't matter.

Answer 1

Usually such crap happened on Mikrotik.
If there is a linux, then it would be treated like this
ifconfig eth0 hw ether 11:22:33:44:55:66
As an option, the firmware can help

Answer 2

there is a native utility under the window to it.
connect directly to the network.
I don’t remember if you can set the MAC or not in it, but you can try.
and here it may be useful DKVM-IP1 - how to restore the settings to factory settings

Answer 3

he glitched now he has a poppy on his network card 00:00:00:00:00, Cisco drops packets with this poppy

Have you checked (with a traffic analyzer or by entries in the MAC address table of the switch to which ip-kvm is connected), in Ethernet frames from the Dlink device, this address as the source MAC address?