How the Random IP Address Generator works

IPv4 addresses are four random bytes. By default the generator skips private ranges such as 10.x.x.x, 172.16 to 172.31 and 192.168.x.x, as well as loopback, link local, multicast and documentation ranges, so the result looks like an ordinary public address. IPv6 addresses are eight random 16 bit groups written in full.

Add a suffix such as /24 or /64 to produce network ranges instead of single hosts.

When it is useful

• •Filling test databases and log samples.
• •Writing documentation and tutorials without exposing real addresses.
• •Testing validation code for IP fields.
• •Creating mock firewall or access logs.

Frequently Asked Questions