Proxy ARP it's a thing and it is exactly what you've described :) And if by proxy DNS you mean you'll subvert ARP to reach a DNS server... that's proxy ARP. DN

Proxy ARP it's a thing and it is exactly what you've described :) And if by proxy DNS you mean you'll subvert ARP to reach a DNS server... that's proxy ARP. DNS is a few layers above :) Definition: Proxy ARP is the technique in which one host, usually a router, answers ARP requests intended for another machine. By "faking" its identity, the router accepts responsibility for routing packets to the "real" destination.