Subnet Machine

Randomly generated, configurable subnetting quiz

The Subnet Machine will generate a random subnetting question tailored to fit your needs. Questions will include broadcast and network addresses, calculating the number of IP’s and usable IP’s, Cidr notation and classes A, B and C. Your progress is displayed next to each question showing where you excel and where you struggle. Options like Cidr notation and classes can be disabled to ensure the Subnet Machine generates questions you need to practice.

Subnet Machine Settings