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Extended IPv4 ACL Drill 2

Extended IPv4 ACL Drill 2

🕔09:05, 10.May 2017

This next Extended IPv4 ACL Drill continues to focus on some key ACL concepts. You have to think about where the ACL will reside, and for what direction of packet flow, before choosing the syntax of the commands. This next

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Extended IPv4 ACL Drill 1 – Answers

Extended IPv4 ACL Drill 1 – Answers

🕔09:05, 5.May 2017

The previous post listed a set of ACL requirements that require an IPv4 Extended ACL. Your job: using those requirements, configure an extended named ACL. Of course, this post makes no sense without the post that states the requirements, so check

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Extended IPv4 ACL Drill 1

Extended IPv4 ACL Drill 1

🕔09:05, 3.May 2017

Extended Access Control Lists (ACLs) can be a challenge for many reasons. In the first few posts in this series, these ACL exercises will focus on just a few of those issues. In particular: The concept and syntax to match

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Advice After 17 Trips to CLUS

Advice After 17 Trips to CLUS

🕔14:53, 24.Apr 2017

I’ve been to Cisco Live in the US – #CLUS in the Twitterverse – for what seems like almost every year since I was a kid. So, I thought I’d collect some thoughts about the show into a blog post.

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IPv6 Shrinker 1 – Answers

IPv6 Shrinker 1 – Answers

🕔10:52, 1.Apr 2017

Use this practice drill for #ICND2 or #CCNA IPv6 practice. Short and sweet: look to the earlier post with 10 practice problems, and today’s post for the answers. The goal: to get good, and to go fast, when converting IPv6

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IPv6 Shrinker 1

IPv6 Shrinker 1

🕔09:53, 1.Apr 2017

Looking for short #ICND2 or #CCNA review tasks? This new practice drill can help. The short version: take a 32-digit hex IPv6 address, and find the shortest abbreviation – or do the opposite. The goal: to get good, and to

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IPv6 Icky EUI-64 Drill 1 – Answers

IPv6 Icky EUI-64 Drill 1 – Answers

🕔09:50, 1.Apr 2017

Short and icky sweet: this post lists answers for the icky EUI-64 drill 1 for #ICND2 and #CCNA. The problems require you to find the IPv6 address a host or router would use, given a prefix, MAC address, and assuming

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IPv6 Icky EUI-64 Drill 1

IPv6 Icky EUI-64 Drill 1

🕔08:50, 1.Apr 2017

This post starts a new type of review post for #ICND2 or #CCNA: the icky EUI-64 drill. It’s icky for two reasons: it requires you to think in binary, and it rhymes. The goal: Starting with a MAC address and

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CLI Vs API Twitter Chat

CLI Vs API Twitter Chat

🕔12:05, 17.Mar 2017

The Cisco SE organization and Cisco DevNet are teaming up to hold a Cisco Chat about CLI and API. It has a catchy title: “Have APIs Killed the CLI?”. This blog post gives some short background, with a survey so

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Troubleshooting Layer 2 Switching: Answers

Troubleshooting Layer 2 Switching: Answers

🕔12:05, 9.Mar 2017

Can you think abstractly about how layer 2 switching works, and how VLANs and trunks impact their forwarding decisions? Or do you need to see the specific configurations to make sense of it? This latest practice question pulls in a

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