linuxnetwork-programmingiplannmap

How to get a list of all valid IP addresses in a local network?

Is there a way to get a list of all valid IP addresses in a local network?

I mean all IP addresses that each user is using in the network.

Solution

  • Install nmap,

    sudo apt-get install nmap

    then

    nmap -sP 192.168.1.*

    or more commonly

    nmap -sn 192.168.1.0/24

    will scan the entire .1 to .254 range

    This does a simple ping scan in the entire subnet to see which hosts are online.