JS Labs Subnet Calculator

Calculate

IPv4 and IPv6 supported

Quick starting points

Home network (IPv4)
192.168.1.0/24

Typical home or small office LAN segment.
Private lab range (IPv4)
10.42.0.0/16

Large private address space for lab experiments.
Point-to-point link (IPv4)
172.16.0.0/30

Two-host subnet for dedicated links.
Lab /64 (IPv6)
fd00:42::/64

Private IPv6 subnet for internal lab services.
Documentation range (IPv6)
2001:db8::/48

Example documentation network used in tutorials.

Use these as templates and adjust the host prefix for your own experiments or production segments.