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sipcalc 1.1.6 Command-line IP subnet calculator

Sipcalc is an advanced command-line 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.