Networking – Is it possible to find the MAC address of a turned off computer somewhere in the LAN


I know I can ping and find the MAC address in my local ARP table.

But what if a computer I want the address to is not started and can't respond to ping etc. and I can't reach it physically. Is there somewhere I can find this MAC address?

For example in routers or in DNS tables?

Best Answer

No you cant. Unless you have any mac-based rule on the switchport

Edit: dns reservations ( as you mentioned ) and dhcpd leases can work too.