ripcalc is a CLI tool and a Go package for calculating IPv4 and IPv6 address blocks.
- IPv4 and IPv6 support
- Address start, end, usable address count, network count
- Binary representation of addresses
- Structured output: JSON
- Optional coloured output
- No dependencies beyond the Go standard library
ripcalc 192.168.0.0/24 Address: 192.168.0.1 11000000.10101000.00000000. 00000001 Netmask: 255.255.255.0 = 24 11111111.11111111.11111111. 00000000 Wildcard: 0.0.0.255 00000000.00000000.00000000. 11111111 ---------------------------------------------------------------------------- Network: 192.168.0.0/24 11000000.10101000.00000000. 00000000 First host: 192.168.0.1 11000000.10101000.00000000. 00000001 Last host: 192.168.0.254 11000000.10101000.00000000. 11111110 Broadcast: 192.168.0.255 11000000.10101000.00000000. 11111111 Host count: 254 Class C, Private Internet ripcalc -json 192.168.0.1/24{ "$schema": "https://github.com/ronny/ripcalc/blob/main/schema/ipv4-v1.json", "address": "192.168.0.1", "netmask": "255.255.255.0", "wildcard": "0.0.0.255", "network": { "address": "192.168.0.0", "prefix_length": "24", "broadcast": "192.168.0.255", "usable_hosts": { "min": "192.168.0.1", "max": "192.168.0.254" "count": 254 }, "class": "C", "type": "PRIVATE" },ripcalc 2001:db8::/32TODO
Download the binary from the releases page.
- ipcalc - the main inspiration for ripcalc