It’s an ethernet wire that’s going to be exiting my house and running to a camera in a publicly accessible space. An attacker could disconnect the camera, connect a laptop and access my network. How could I protect against that (other than a physical lock)? I basically want to lock down that cable to the point where nothing works on it unless it’s the intended camera. If this was wireless, I’d just use MAC filtering, but I don’t see an equivalent for wired connections.
Mac Address filtering works on wired too. If the switch supports it this is the easiest thing to do. But you may have to set a vlan and then only allow that mac on that vlan. Disable DHCP too if you can.
How would devices connect if DHCP is disabled? Sorry still new to this.