The most recent CCNA and CCNP exam release (February 2022) had a minor side effect that left many wondering: Was Cisco continuing to use the Sim and Simlet question types? A Cisco blog post in [...]

For this next IPv6 addressing drill, you begin with a prefix configured on a router LAN interface using the ipv6 address prefix-id/64 eui-64 command. Your job: calculate the Global Unicast [...]

This post gives you an exercise with five different problems. Each begins with an expanded IPv6 Global Unicast Addresses (GUA). For each problem, start by abbreviating the address. Then find the [...]

This post gives you an exercise with five different problems. Each begins with an expanded IPv6 Global Unicast Addresses (GUA). For each problem, start by abbreviating the address. Then find the [...]

Some of you, particularly those that subscribe to the blog, will have noticed a lot of posts here at the blog in mid-October 2021. I thought I’d give you a quick update on what I’m [...]

Are you comfortable matching packets with extended ACLs? How about with TCP and UDP ports in those ACLs? Here’s a 10-minute lab exercise to practice; all you need is the time and a piece of paper [...]

Placeholder text

There is no excerpt because this is a protected post.

There is no excerpt because this is a protected post.

There is no excerpt because this is a protected post.

There is no excerpt because this is a protected post.

There is no excerpt because this is a protected post.

There is no excerpt because this is a protected post.

There is no excerpt because this is a protected post.

There is no excerpt because this is a protected post.