The IP Subnet Calculator is a tool that allows network administrators to make calculations that will assist in subnetting a network. You give the network class and subnet bits and you get back the maximum number of subnets, maximum number of hosts per subnet, a bimap showing the breakdown of network bits, subnet bits, and host bits, the decimal and hexadecimal class netmask, the decimal and hexadecimal subnet mask and lists subnets and host information. CIDR support and reverse engineer the network information for a particular interface (e.g. eth0, ppp0).
This is the second network administration package suggested by Robert W.:
Ever needed the proper netmask, in Cisco/decimal/whatever notation, at 3.50am, when you can't decide if you need to block 18.104.22.168/4 or /3?
Debian can help, as always, if you know which packages you have to look at.
The IP Subnet Calculator (ipsc & gipsc) is a tool that allows network administrators to make calculations that will assist in subnetting a network.
I'm at OSCON this week in Portland, Oregon. Say howdy if you see me or come see me try avoid making a fool of myself at my presentation on Thursday afternoon.
More information on this package can be found on the Debian web site.
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