Quote:
Originally Posted by KlenTelaris
+1
Tho, there is way to manually extract targeted ip range, but it is toomuch hassle, better to buy commercial database like that one or any of available cheaper alternatives.
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Use LINUX in terminal
root@--:~# apt-get install ipcalc
Code:
user@--:~# ipcalc 68.100.100.0/24
Address: 68.100.100.0 01000100.01100100.01100100. 00000000
Netmask: 255.255.255.0 = 24 11111111.11111111.11111111. 00000000
Wildcard: 0.0.0.255 00000000.00000000.00000000. 11111111
=>
Network: 68.100.100.0/24 01000100.01100100.01100100. 00000000
HostMin: 68.100.100.1 01000100.01100100.01100100. 00000001
HostMax: 68.100.100.254 01000100.01100100.01100100. 11111110
Broadcast: 68.100.100.255 01000100.01100100.01100100. 11111111
Hosts/Net: 254
you need to understand the /CDIR blocks /28 /24/ ... /8 etc