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Now something that may be a stumbling block for you and often trips up engineers when they first start

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out he's lugging when they tell that to a Rodda.

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So in this example I'm going to connect to the Rodda

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from my local Windows PC so I'm going to connect the router to the outside world and I'm just going

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to use my Local Area Connection Card to connect to Jena's three to the outside world.

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And then what I'll do is connect the router to the cloud

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so on rather one interface if a zero slash one.

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This is the interface connected to the outside world.

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I'm going to shut the interface and type IP address DHC so that the router gets an IP address via a

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DHV.

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So hopefully I should see a message stating that an address has been allocated in this case she can

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see that an address level 6 in slog which is an informational message shows me that an address has been

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assigned to the Rogers is interface with this IP address.

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So in Windows I'll tell that to the Rodda who told that I need a password.

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Line Viti 0 4 luggin password Cisco enable Posawatz Cisco.

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Obviously in the real world you'll use a better password than that but that's fine for our demonstration.

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So show logging.

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Now according to this I have debugging a level of monitoring on a monitor.

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So let's check the debugging showed debug.

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This is on the console.

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You can see OSPF adjacency events.

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Debugging is enabled so let's see if we get any output on our telnet session I'll shut down the interface

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on Rodda to and then enable it so notice I'm getting debugs on the console but nothing is displayed

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on the telnet session.

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Lots of debugging on the console.

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Nothing on the telnet session and that's because you have to type terminal monitor or turn Mon so term

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monitor for terminal monitor or month for short.

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Any one of those options will do.

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So let's try now shut the interface and write it to No shutout and notice suddenly I'm seeing debugging

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messages on both the console as well as the telnet session.

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So don't forget that you can set logging on I'll do that through the console.

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You can set the logging for a monitor line but by default the output is not displayed on your telnet

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session.

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You must type terminal monitor.

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You don't have to do that on a console.

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So to foretop terminal monitor notice I'm told that the console already monitors.

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You don't have to enable terminal monitor on the console.

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By default debugging and syslog messages will be displayed on the console but that won't be displayed

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on a telnet to line.

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So as an example if I press controls Zahed control Z on the terminal so the Viti y line I see output.

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But if I type term no monitor and do that again.

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Controls to control Z.

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I don't see anything on the terminal line.

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It's a term one very important to remember that allows you to see debugging messages and console messages

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so slug messages on the Viti one line.

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It's not there by default.