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200-105 (New) Parts

An MC Question with STP, 802.1Q, ARP, and MAC tables

An MC Question with STP, 802.1Q, ARP, and MAC tables

🕔14:24, 6.Apr 2012

Today’s post is a question that comes with the ICND2 Official Cert Guide. A reader had sent in an errata email, claiming the question was wrong (it wasn’t in this case), but this question is packed with tons of learning

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Answers, Config VM: IPv6 Static Routes

Answers, Config VM: IPv6 Static Routes

🕔17:30, 24.Jan 2012

This post answers an earlier config VM piece that asked you to confiugre some IPv6 static routes. (Turns out I forgot to post the answer, so… here it is!) Since it has been so long, if you’re thinking “huh?”, click

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STP Puzzle Overview

STP Puzzle Overview

🕔19:59, 12.Dec 2011

I’ve named a new type of blog post: an STP Puzzle. The big idea is pretty simple. The problem tells you some (but not all) facts about Spanning Tree Protocol (STP) in a small switched network. Your job: determine as

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STP Puzzle #1, Answer Part 3

STP Puzzle #1, Answer Part 3

🕔11:17, 6.Dec 2011

This post wraps up the discussion of STP Puzzle #1 with a brief look at finding the designated ports (DPs) on each link between switches. As usual, check out the original post to make sense of this one. Note that

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STP Puzzle #1, Answer Part 2

STP Puzzle #1, Answer Part 2

🕔13:03, 5.Dec 2011

This post looks again at STP Puzzle #1. As usual, check out the original post to make sense of this one. Part 1 of the answer determined that switch S4 is the root in this puzzle. This post walks through

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STP Puzzle #1, Answer Part 1

STP Puzzle #1, Answer Part 1

🕔14:05, 2.Dec 2011

This post starts to answer STP Puzzle #1. As usual, check out the original post to make sense of this one. These puzzles give you some info about Spanning Tree Protocol (STP) in a particular network. Your job: figure out

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STP Puzzle #1

STP Puzzle #1

🕔11:29, 29.Nov 2011

This blog post is the first of what may be a whole new type. You can read all day about Spanning Tree Protocol (STP), and learn the theory, but that’s not enough. When you later try to apply STP concepts

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Config Museum: IPv6 Static Routes

Config Museum: IPv6 Static Routes

🕔07:00, 5.Nov 2011

This blog post begins with a router triangle, IPv6 addresses, and working interfaces. All routers can ping their own IPv6 addresses, but the routers only know their own IPv6 connected routes. Your job: Add static IPv6 routes for the LAN

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Answer, Config Museum Lab: IPv6 Addressing

Answer, Config Museum Lab: IPv6 Addressing

🕔08:49, 2.Nov 2011

This blog post simply lists the answers to the earlier lab exercise from a few days ago. This post makes no sense without the first one, so don’t look until you read the other post. No guile, no tricks, just

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Config Museum: IPv6 Addressing

Config Museum: IPv6 Addressing

🕔07:00, 29.Oct 2011

This blog post creates one of what may be many posts in a concept called the Config Museum. Years from now, this concept may really be a museum of configuration exercises and answers. But just like a museum holds lots

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