Address (Host or Network) Netmask (i.e. 24) Netmask for sub/supernet (optional)
/ move to:
 



Address:   10.1.1.1              00001010.00000001.00000001.000000 01
Netmask: 255.255.255.252 = 30 11111111.11111111.11111111.111111 00
Wildcard: 0.0.0.3 00000000.00000000.00000000.000000 11
=> Network: 10.1.1.0/30 00001010.00000001.00000001.000000 00 (Class A)
Broadcast: 10.1.1.3 00001010.00000001.00000001.000000 11
HostMin: 10.1.1.1 00001010.00000001.00000001.000000 01
HostMax: 10.1.1.2 00001010.00000001.00000001.000000 10
Hosts/Net: 2 (Private Internet)


Thanks to http://www.netzwerkinfo.de/daemons/ for this ip calculator icon :-)
Version 0.35.2 2005/07/07

Download
07/27/2006 Security information
Screenshot (ipcalc works also at the prompt)
CGI wrapper that produced this page.
Archive
Have a look in the archives for the new version 0.41, with the capability to deaggregate network ranges
How to run this under windows
Debian users can apt-get install ipcalc
2000-2011 Krischan Jodies

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