How to see the list of ip on a wi-fi network?

Question

WiFi

There is wi-fi to which several devices are connected, you need to find out the ip-address of a particular device (ip cam) how to do this using a laptop with linux connected to this network?

Answer 1

Configure DHCP on the router so that it always gives out the same IP to the camera.
Or reduce the address pool in the DHCP settings on the router and manually assign an address from the same subnet, but outside the pool.
If you know the MAC address of the camera, you can ping the entire subnet, and then look in the ARP table like this:

[email protected]:~$  fping -g 10.165.49.0/24
10.165.49.1 is alive
10.165.49.5 is alive
10.165.49.48 is alive
ICMP Host Unreachable from 10.165.49.200 for ICMP Echo sent to 10.165.49.2
ICMP Host Unreachable from 10.165.49.200 for ICMP Echo sent to 10.165.49.3
...

[email protected]:~$ ip ne | grep 2a:2b:e2:1e:e8:09
10.165.49.5 dev eth0 lladdr 2a:2b:e2:1e:e8:09 REACHABLE
[email protected]:~$