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Seeing all IP addresses that are being used.

I am running Server 2008 R2 Standard and I want to be able to see all of the IP addresses that are being used on my LAN.  I know that I can go into my addresse leases in DHCP and see all of the addresses being used there but I also want to see all of the addresses that are being used outside of my leases.  Please advise.  Thanks.
Steve Eckerman
Steve Eckerman
1 Solution

Free and works quite well in my experience.
The only real way to do it that I know of is to examine the ARP Cache table on your router, which will enumerate all the IPs that have recently transmitted or received data. I don't think you can do it from Windows - reason being is Windows Server has no control over devices that assign themselves a static IP address.


An IP scanner can help you find a specific machine but I wouldn't trust it to properly enumerate ALL IPs used on the subnet. Devices on your network are not obligated to respond to a ping (in fact Windows 7 on a "public" network does NOT respond to pings by default), and devices can be turned off, disconnected etc.
Steve EckermanSystems AdministratorAuthor Commented:
Great App!  Worked perfect!!!  Thanks!!!
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