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# Information about ipcalc

This is a modern tool to assist in network address calculations for IPv4 and IPv6.

It acts both as a tool to output human readable information about a network or address,

as well as a tool suitable to be used by scripts or other programs.

It supports printing a summary about the provided network address, multiple

command line options per information to be printed, transparent IPv6 support,

and in addition it will use libGeoIP if available to provide geographic information.

# Examples

## IPv4

```

$ ./ipcalc --all-info 193.92.150.2/24

Address:        193.92.150.2

Network:        193.92.150.0/24

Netmask:        255.255.255.0 = 24

Broadcast:      193.92.150.255

Reverse DNS:    150.92.193.in-addr.arpa.

Address space:  Internet

Address class:  Class C

HostMin:        193.92.150.1

HostMax:        193.92.150.254

Hosts/Net:      254

Country code:   GR

Country:        Greece

```

```

$ ./ipcalc -pnmb --minaddr --maxaddr --geoinfo --addrspace 193.92.150.2/255.255.255.224

NETMASK=255.255.255.224

PREFIX=27

BROADCAST=193.92.150.31

NETWORK=193.92.150.0

MINADDR=193.92.150.1

MAXADDR=193.92.150.30

ADDRSPACE="Internet"

COUNTRY="Greece"

```

## IPv6

```

$ ./ipcalc --all-info 2a03:2880:20:4f06:face:b00c:0:14/64

Full Address:   2a03:2880:0020:4f06:face:b00c:0000:0014

Address:        2a03:2880:20:4f06:face:b00c:0:14

Full Network:   2a03:2880:0020:4f06:0000:0000:0000:0000/64

Network:        2a03:2880:20:4f06::/64

Netmask:        ffff:ffff:ffff:ffff:: = 64

Reverse DNS:    6.0.f.4.0.2.0.0.0.8.8.2.3.0.a.2.ip6.arpa.

Address space:  Global Unicast

HostMin:        2a03:2880:20:4f06::

HostMax:        2a03:2880:20:4f06:ffff:ffff:ffff:ffff

Hosts/Net:      2^(64) = 18446744073709551616

Country code:   IE

Country:        Ireland

```

```

$ ./ipcalc -pnmb --minaddr --maxaddr --addrspace --geoinfo 2a03:2880:20:4f06:face:b00c:0:14/64

NETMASK=ffff:ffff:ffff:ffff::

PREFIX=64

NETWORK=2a03:2880:20:4f06::

MINADDR=2a03:2880:20:4f06::

MAXADDR=2a03:2880:20:4f06:ffff:ffff:ffff:ffff

ADDRSPACE="Global Unicast"

COUNTRY="Ireland"

```