Find IPs on a Network
The key to this is using ARP requests to discover IP's and MAC addresses on the network. There are two programs good for this.
-arp-scan sudo apt-get install arp-scan
-netdiscover - git clone https://github.com/alexxy/netdiscover.git - cmake
both can be noisy (send arp requests to discover devices themselves) but netdiscover has a passive mode that allows for the program to just watch for arp requests. It takes longer but it does it without sending arp requests.
netdiscover -p -i (interface)
-arp-scan sudo apt-get install arp-scan
-netdiscover - git clone https://github.com/alexxy/netdiscover.git - cmake
both can be noisy (send arp requests to discover devices themselves) but netdiscover has a passive mode that allows for the program to just watch for arp requests. It takes longer but it does it without sending arp requests.
netdiscover -p -i (interface)
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