Nmap scan different (?) subnet (ARP request)

Question

Well met!

I have two machines and a switch, one machine has the address "192.168.233.1" the other has "192.168.1.1". How could I scan, using nmap, the range 192.168.1.1-254 from the 233.1 machine? I want to be able to see only the requests to 192.168.1.1 in Wireshark.

Thanks!

Answer 1

The hosts must be interconnected by a gateway (assuming their subnet mask is a /24).

If the gateway exists, the two subnet can reach each other and you can use nmap normally (e.g. nmap -sP 192.168.1.1-254)

Then if you wanna see only traffic toward the host 192.168.1.1, put ip.addr == 192.168.1.1 as filter on wireshark