sipcalc - Advanced console-based ip subnet calculator

Sipcalc is an advanced console-based IP subnet calculator. It can take multiple forms of input (IPv4/IPv6/interface/hostname) and output a multitude of information about a given subnet.

Features include:

IPv4

• Retrieving of address information from interfaces.


• Classfull and CIDR output.


• Multiple address and netmask input and output formats (dotted quad, hex, number of bits).


• Output of broadcast address, network class, Cisco wildcard, hosts/range, network range.


• The ability to "split" a network based on a smaller netmask, now also with recursive runs on the generated subnets. (also IPv6)

IPv6

• Compressed and expanded input and output addresses.


• Standard IPv6 network output.


• v4 in v6 output.


• Reverse DNS address generation.

Robert W. suggests a pair of network administration tools and says:

Ever needed the proper netmask, in Cisco/decimal/whatever notation, at 3.50am, when you can't decide if you need to block 224.0.0.0/4 or /3?

Debian can help, as always, if you know which packages you have to look at.

Sipcalc is an advanced console-based IP subnet calculator. It can take multiple forms of input (IPv4/IPv6/interface/hostname) and output a multitude of information about a given subnet.

Another package from Robert tomorrow.

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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