How can You quickly find all the used IP addresses on Your Internal network?
Instead of manually pinging all IP addresses on your LAN you can use this
command:
Open Command Prompt and type:
FOR /L %i IN (1,1,254) DO ping -n 1 192.168.0.%i | FIND /i
"Reply">>c:\ipaddresses.txt
The "-n 1" is for only 1 ping packet to be sent to each computer.
Change 192.168.0 to match you own Network ID.
This will ping all IP addresses on the 192.168.0.0 network segment and
create a text file called IPADDRESSES.TXT in C:\, where it will list only the
IP addresses that gave a reply.
You can also add a -a to the PING command to resolve all the responding IP
addresses to HOST names, but doing so will cause the script to take a
considerable time to finish:
FOR /L %i IN (1,1,254) DO ping -a -n 1 192.168.0.%i | FIND /i
"Reply">>c:\ipaddresses.txt
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