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How many computers in the subnet?

eriklee
eriklee asked
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Last Modified: 2007-12-19
I am not a network guy.

I want to be able to find out how many computers are currently connected to the subnet.
say, 192.169.100.101 to 192.169.101.150 are allocated fixed IP to a 50  computers.
some PCs can be switched off.

Are there any solutions using windows (command line) network programs/utilities to check how many computers are connected at a particular time without using 3rd party LAN management softwares..?

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Commented:
get nmap (http://www.insecure.org/nmap/), should say whats on a subnet.

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Distinguished Expert 2019
Commented:
That's one approach, you could also just ping every IP address in that range.

Another program you could use is Angry IP Scanner (http://www.angryziber.com/ipscan/)
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Top Expert 2013
Commented:
There are dozens of these applications out there. Probably the smallest and simplest is TCP network view. Doesn't even require installation, can be run from a floppy.
http://www3.ns.sympatico.ca/malagash/Downloads/TCPNetView/TCPNV.EXE

Or another very detailed one is Look At LAN
http://www.lookatlan.com/

Both are free.
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Top Expert 2013

Commented:
eriklee, did you like any of the above suggestions?
--Rob

Author

Commented:
tcpnv.exe does a good job but cannot run on command line & lookatlan does appear to cost a couple of $.

both 'nmap' and 'angry IPscan' does what i required - in particular angryipscan which has so many extra features as well.
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Top Expert 2013

Commented:
Thanks eriklee.
Look at Lan is more elaborate, but it is free.
--Rob
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