ipcalc

Perform simple operations and calculations on IP addresses and networks.

More information.

• Show information about an address or network with a given subnet mask:

ipcalc {1.2.3.4} {255.255.255.0}

• Show information about an address or network in CIDR notation:

ipcalc {1.2.3.4}/{24}

• Show the broadcast address of an address or network:

ipcalc -b {1.2.3.4}/{30}

• Show the network address of provided IP address and netmask:

ipcalc -n {1.2.3.4}/{24}

• Display geographic information about a given IP address:

ipcalc -g {1.2.3.4}

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