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Basic Port Security 2
Quick, can you name all the small options available with Cisco’s port security feature on Catalyst IOS images? Most of us can't, unless we're in the middle of studying for CCENT, CCNA, or CCNP R&S SWITCH. But this blog is
Answers: OSPF Interface Config 1
Can you configure OSPFv2 without the network command? Today’s post gives you the answers to a recent CLI Lab that lets you practice OSPF interface configuration. Check out the lab, create your answer, and check back here to compare.
OSPF Interface Config 1
From the first days of OSPF in Cisco routers, OSPF configuration has included a network command. The network command enables OSPF on that router’s interfaces, but it uses indirect logic. In fact, the network command does not list interface numbers.
ACL Drill Set 3 – Answers
This post makes no sense without the questions from the previous post, so check those out if you’ve not done so already. The questions list ACLs that were typed in a text editor, so they could list an IP address
ACL Drill Set 3
Today's post lists several ACL interpretation exercises. Below the fold, you’ll find several ACEs (ACL commands) as typed in a text editor. For each ACL, you must answer two questions: 1) what range of addresses does each ACE match? 2)
A: Which IPv4 Static Routes Could be Useful?
The previous sample question gave us lots of example static IPv4 routes to think about. The answer and explanation are below the fold, as usual. Ask'em if you've got'em! Answer Letter C Explanation The first two parameters on the ip
Q: Which IPv4 Static Routes Could be Useful?
This week's sample question is about static IPv4 routes. The question makes you think not only about syntax, but also about the meaning of the parameters of the ip route command. The wording is a bit tricky because I've attempted
Answers: EIGRP Unequal Cost Routes
This latest lab lets you exercise your basic EIGRP config skills, with a few twists. Does the actual link speed matter? Do you recall how to use wildcard masks in your EIGRP config? And how do you use multiple unequal-metric
EIGRP Unequal Cost Routes
#EIGRP uses a complex metric calculation. Most of us do not memorize the math formula, instead remembering the metric components: slowest bandwidth in the route and cumulative delay for all links. This lab lets you ponder how to configure EIGRP
