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.

Lab — Static Routing and EIGRP

Wed, 10 Jun 2026 00:00:00 +0000

In this lab, the goal was to practice some basic routing configurations. Going through the NetworkChuck Summer of CCNA course, this is the section we are currently up to.

A Little Bit on Routing

Routers will not route to networks they do not know about. They are clever devices in some ways, but not that clever. So there are a few different ways to get routers to know about networks. Firstly, any network directly connected to the router (i.e plugged into an interface) will be available. Providing of course the ip address has been set and the interface is up/up.

Routing on Andy Als

Wildcard Masks

Lab — Static Routing and EIGRP

A Little Bit on Routing