Wildcard Masks

Thu, 11 Jun 2026 00:00:00 +0000

Typically when we use a subnet mask, it is telling us which parts of the IP address are deemed as the network portion and which parts are deemed as the host portion of the address. Simply, which numbers in the IP address can be used as addresses for hosts on the network and which numbers are reserved as defining what network we are on.

The wildcard mask is a bit different and can be confusing until you get it, but really it is simple enough once you understand.

Notes on Andy Als

Wildcard Masks