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Posts From Wendell Odom

Config Lab: Standard Numbered ACL 1

Config Lab: Standard Numbered ACL 1

🕔09:05, 1.Oct 2021 Write a 1-line ACL to match something? Easy. Write a several line ACL with a bunch of requirements? A little harder. Choosing where to put that multi-line ACL, when the ACL requirements span multiple subnets? Yet another bump. Combining all Read Full Article
Config Lab: IPv6 Special Addresses 2

Config Lab: IPv6 Special Addresses 2

🕔21:05, 28.Sep 2021 This latest config lab takes a backwards approach to configuration. In this case, it starts with a bunch of show commands, and asks you to derive some of the key configuration items on several routers. The theme: IPv6 addressing. By Read Full Article
Config Lab: IPv6 Special Addresses 1

Config Lab: IPv6 Special Addresses 1

🕔19:05, 28.Sep 2021 This latest config lab takes a backwards approach to configuration. In this case, it starts with a bunch of show commands, and asks you to derive some of the key configuration items on several routers. The theme: IPv6 addressing. By Read Full Article
Config Lab: IPv6 Static Routes 3

Config Lab: IPv6 Static Routes 3

🕔17:05, 28.Sep 2021 Although this lab’s title is “IPv6 Static Routes 3”, it might be better called “Convoluted Fun with overlapping IPv6 Static Routes using Administrative Distance”. The purpose of the lab is to exercise a couple of specific ideas: how a router Read Full Article
Config Lab: IPv6 Static Routes 2

Config Lab: IPv6 Static Routes 2

🕔15:05, 28.Sep 2021 IPv6 routing has many similarities with IPv4 routing; however, the length of the IPv6 addresses can sometimes get in the way of learning the main concepts. This next lab removes those barriers with a straightforward IPv6 static route configuration lab. Read Full Article
Config Lab: IPv6 Static Routes 1

Config Lab: IPv6 Static Routes 1

🕔13:05, 28.Sep 2021 Ever get tired of sifting through the details of seemingly random IPv6 addresses? Well, today’s lab gives you yet another quick config exercise while using very easy-to-remember IPv6 addresses and prefixes. The task today: configuring static IPv6 routes. All the Read Full Article
Config Lab: IPv6 Global Unicast Addressing 1

Config Lab: IPv6 Global Unicast Addressing 1

🕔11:05, 28.Sep 2021 IPv6 addresses just take a little getting used to. This next lab gives you same reps with configuring Global Unicast addresses, while giving you a few mind-bending exercises to make you think about Link Local addresses and EUI-64. I would Read Full Article
Config Lab: IPv6 EUI-64 Addressing 1

Config Lab: IPv6 EUI-64 Addressing 1

🕔09:05, 28.Sep 2021 Do you know how to take an interface MAC address and determine what IPv6 address the interface would use when using EUI-64? Could you then do the reverse: take the IPv6 address, and predict what MAC address is used for Read Full Article
Config Lab: OSPF Metrics

Config Lab: OSPF Metrics

🕔15:05, 24.Sep 2021 OSPF chooses the best route to reach a subnet based on the lowest cost among all possible routes. OSPF calculates the cost as the sum of the OSPF interface costs of all outgoing interfaces in the route. Unsurprisingly, you can Read Full Article
Config Lab: OSPF Router IDs

Config Lab: OSPF Router IDs

🕔13:05, 24.Sep 2021 OSPF uses a router's Router ID (RID) to identify each router. We see the RID in many OSPF verification commands, so using predictable, known OSPF RID values can help people operate networks. This lab asks you to configure the OSPF Read Full Article

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