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Tag "ACL"

A: Matching Port Numbers with ACLs 1

A: Matching Port Numbers with ACLs 1

🕔09:05, 8.Feb 2018

First, think of TCP headers, and the source port and destination port. Then think about the predictable port – the well-known port – and whether it will be the source or destination port. Then think about the syntax of the

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Q: Matching Port Numbers with ACLs 1

Q: Matching Port Numbers with ACLs 1

🕔10:05, 5.Feb 2018

#CCNA ACL questions can uncover your weaknesses even without a detailed and complicated list of requirements to place in a single ACL. In fact, my “Acing the CCNA Exam” live course on Safari features ACL Port Matching as one of

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Extended IPv4 ACL Drill 2 – Answers

Extended IPv4 ACL Drill 2 – Answers

🕔09:05, 12.May 2017

Extended IPv4 ACLs? No problem. Matching packets going towards the client? A little more of a problem. Deciding whether you need to match ARP and OSPF in your ACL? Even more of a problem. This latest drill makes you think

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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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Answers: IPv6 Extended ACLs 1

Answers: IPv6 Extended ACLs 1

🕔09:10, 7.Oct 2016

This latest lab breaks the config lab mold just a tad, but for a good reason. It looks like a straightforward config lab, requiring just 10 minutes or so to do on paper. But it sets you up for one

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IPv6 Extended ACLs 1

IPv6 Extended ACLs 1

🕔09:05, 5.Oct 2016

Are you comfortable matching packets with extended IPv6 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 or a place

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Answers: IPv6 Standard ACL 1

Answers: IPv6 Standard ACL 1

🕔09:10, 9.Sep 2016

The previous lab exercise requires you to configure a standard IPv6 ACL. The address range matching should be pretty straightforward. You also need to choose where to put the ACL, and for which direction of flow for the packets. As

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IPv6 Standard ACL 1

IPv6 Standard ACL 1

🕔09:05, 7.Sep 2016

IPv6 ACLs – new to #CCNA with the 2016 exam revisions – include both standard and extended ACLs. However, IPv6 standard and extended ACLs have only subtle configuration differences. This lab helps you notice those differences with a lab that

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