Enter an IPv4 address and a prefix (like 192.168.1.0/24) and this works
out the network address, the usable host range, the broadcast address, and both the
dotted-decimal and wildcard subnet masks. Handy whenever you're configuring a router,
firewall, or self-hosted service.
Subnet mask–
Wildcard mask–
Network address–
Broadcast address–
Usable range–
Usable hosts–
Total addresses–