Simple IP Calculator sub/sup networking
Calculer vos masques ou wildcard (masque inverse) simplement avec cet outils
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Usage
$ icalc <address/prefix> [divisor]
$ icalc <address-range> [divisor]
$ icalc <address netmask> [divisor]Examples
[bsd@cto icalc]$ icalc 192.168.1.1 255.255.255.0
Netmask Wildcard Subnets Prefix
--------------- --------------- ------- ------
255.255.255.0 0.0.0.255 1 24
Subnet First Last Broadcast Hosts
--------------- --------------- --------------- --------------- ----------
192.168.1.0 192.168.1.1 192.168.1.254 192.168.1.255 254
----------
Class C 254
[bsd@cto icalc]$ icalc 192.168.1.1/24 4
Netmask Wildcard Subnets Prefix
--------------- --------------- ------- ------
255.255.255.192 0.0.0.63 4 26
Subnet First Last Broadcast Hosts
--------------- --------------- --------------- --------------- ----------
192.168.1.0 192.168.1.1 192.168.1.62 192.168.1.63 62
192.168.1.64 192.168.1.65 192.168.1.126 192.168.1.127 62
192.168.1.128 192.168.1.129 192.168.1.190 192.168.1.191 62
192.168.1.192 192.168.1.193 192.168.1.254 192.168.1.255 62
----------
Class C 248
[bsd@cto bsd]$ icalc 203.152.135.64-203.152.135.78
WARNING: Invalid range, corrected.
Netmask Wildcard Subnets Prefix
--------------- --------------- ------- ------
255.255.255.240 0.0.0.15 1 28
Subnet First Last Broadcast Hosts
--------------- --------------- --------------- --------------- ----------
203.152.135.64 203.152.135.65 203.152.135.78 203.152.135.79 14
----------
Class C 14
[bsd@cto bsd]$ icalc 203.152.135.64-203.152.135.78 2
WARNING: Invalid range, corrected.
Netmask Wildcard Subnets Prefix
--------------- --------------- ------- ------
255.255.255.248 0.0.0.7 2 29
Subnet First Last Broadcast Hosts
--------------- --------------- --------------- --------------- ----------
203.152.135.64 203.152.135.65 203.152.135.70 203.152.135.71 6
203.152.135.72 203.152.135.73 203.152.135.78 203.152.135.79 6
----------
Class C 12
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