README.md
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"