Answer: Switch Admin Config

By certskills December 20, 2011 19:19

The idea is straightforward all the way around – straightforward configuration requirements, and straightforward answers – no guile, no tricks, just a chance to exercise. The topic for this post: Mostly passwords, and generally doing administrative config on a pair of switches. Lab exercise requires in this earlier post; answers below the fold!

Answers: Switch Admin Config

The answers to this config VM piece mostly require that you exercise your memory. Most of the parameters on the individual commands require no analysis. The trickiest part may be remembering all the pieces of the SSH configuration on SW2.

The SSH configuration was requested in requirement #3 in the original post; I need to make a couple of comments about that particular requirement, as follows:

3) The requirements did not spell out the username/password pair to use, so any pair you made up is legal. I used fred/barney.

3) The requirements did not spell out what domain name to configure; any name you used is fine. I used

3) The default setting on the transport input command would work, but I added the transport input telnet ssh command as a reminder to think about it.

Examples 1 and 2 list the answers. The answers list the configuration in the same order that IOS would list it in the output of a show running-config command, rather than in the same order as the requirements listed in the original post. However, the answers list comments that reference the requirement number. Figure 1 repeats the figure for reference. Ask questions if you have them.

This is a relatively simple exercise, but especially for newbies, there’s nothing wrong with asking questions. Fire away. The next Config VM will build on this config and topology, so stay tuned!

Figure 1 – Lab Topology

Example 1: SW1 Config

Example 2: SW2 Config

Switch Admin Config
Switch IP Config
By certskills December 20, 2011 19:19
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  1. HectorJ November 16, 19:26

    I’m a little bit concern about how literal questions of CCNA might be. For example in this lab, question 3 says “allow both telnet and SSH into the switch, with both a username and password”. Despite the fact that I know how to configure ssh (with the “crypto key” and the other stuff), for question’s requirement the answer would be “transport input ssh telnet” and “username fred password barney”; or “transport input all” and “username fred password barney”. Acording with the question text and the “CCENT/CCNA ICND1 100-105” book, even the “transport input…” would be unnecesary, because switches defaults for using both, telnet and ssh. I mean, ssh configuration was not explicitly asked. Do things like this would happen at CCNA exam? What shoul I do? Thanks on advance

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  2. CCENTSkills November 17, 10:41

    Two part answer:
    First, don’t let the content in this or any blog make you concerned about the Cisco exam. The exam questions follow a set of internal standards and pass a fairly lengthy review process. Blog posts typically don’t, and the content seldom follows a standard. EG, what’s here, myself (and others for me) wrote and edited the content, with different goals in mind. EG, in a blog post, if someone is confused, they can ask, and maybe I would change the post. So it’s a much different bit of content.

    That said, the other point is that you hit on an important point about understanding the meaning of what is written. You should pay close attention to wording, and have a good understanding of the technical terms.

    In this case, my goal is to get you to think about the configuration, not to make you get confused about wording. That is, the config is the star of the show with these config labs.

    Hope this helps…

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