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(electronic whooshing)

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- [Keith] So in this video we're going

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to resume with where we left off.

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And this is part two, so
in this particular case

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we're going to be adding our IP addresses

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to all of our interfaces,
and we're gonna be

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creating those loopback interfaces

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and adding IP addresses to that as well.

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Okay, so starting with the topology

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that we already created
in the first section,

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let's go ahead and add
our IP addresses to this.

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So I'm just gonna go ahead and turn on

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all the routers, at this
point, simultaneously,

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because I only have four routers

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and it's okay to turn
that many on at once.

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If I had a larger topology of eight

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or nine routers, I'd probably wanna

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do them one at a time.

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And also, I'm gonna want
this to use SecureCRT,

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so I'm gonna go to Edit, and Preferences,

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to make sure I can use the tabbed

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advantages of SecureCRT.

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And right now,

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that is already set up.

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So we can see here,

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under Console applications for Telnet,

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it is using SecureCRT and it's got all the

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correct arguments to do
tabbing and everything else.

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So we're okay there.

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So hit OK, and let's
just go ahead and verify

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all these routers are, indeed, running.

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Because I can see here
in the Topology Summary

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they're all green.

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That's what I wanna see.

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So now I should be able
to start them all up.

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So go ahead and,

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I'm gonna Console connect to every single

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one of them, all at the same time,

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rather than hitting them individually.

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And there we go.

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Alright now, for whatever
reason, SecureCRT,

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when it opens up, it doesn't put the

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tabs in the order I would actually like.

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I want to be numerical, you know,

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one, two, three, four.

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So I'm just gonna move my routers around

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a little bit here,

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to get them where I want them to be.

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Okay, let's just start with router one.

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I'll go ahead and expand him for a moment.

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Let's create the loopback interface first.

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(keyboard clacking)

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and then interface serial 2/0,

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(keyboard clacking)

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Don't, do not have to put a clock rate

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as if these were real routers.

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Because,

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in GNS3,

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we don't have to worry about that.

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(keyboard clacking)

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Alright, so that takes care of the

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IP information for router one.

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Let's go ahead and save his config,

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because we're also going to be using

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snapshots as we go along this process

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so we can go back and forth in time

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if we need to change things
or troubleshoot things.

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So, save his configuration,

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let's go ahead and minimize him.

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And let's now go to,

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Ah, so, for some reason
it moved these around.

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Tryin' to get me in trouble, here.

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Alright, now let's go to router two.

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(keyboard clacking)

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Interface serial 2/0,

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that connects back to router one.

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(keyboard clacking)

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And interface serial 2/1,
that connects to router four.

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(keyboard clacking)

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And that's, pretty much, all we have to do

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as far as IP addressing is
concerned on that router.

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And make sure we save our
configuration there, as well.

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I love how it keeps moving my windows

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on me when I expand and then contract.

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That's just,

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so adorable of SecureCRT.

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Okay, so let's go ahead
and go to router three now.

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(keyboard clacking)

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Interface fast Ethernet 0/0 which connects

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back to router one.

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(keyboard clacking)

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And interface fast Ethernet

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let's see, I forgot so
let's go back to GNS3.

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It's fast Ethernet 0/1 here, which is

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the other interface
that we wanna configure.

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(keyboard clacking)

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Save his configuration.

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I'm just gonna go ahead
and close that window

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because I can't have the window up,

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anyway, when I create a snapshot.

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Because all the routers
have to be powered off.

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(mouse clicking)

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And the last router we need to configure,

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is router four.

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(keyboard clacking)

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And let's finish off
the IP addressing, here.

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(keyboard clacking)

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And let's just verify that he's

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got all the correct IP addresses.

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Show IP interface brief.

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We got our two physical interfaces

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and we have our loopback,
everything looks good.

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So let's save the configuration, here.

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Let's go ahead and shut down SecureCRT.

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And let's go ahead and use some

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of these other tools here to just

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include what we've done so far.

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So let's go ahead and
use the Add a note tool

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to now put in out IP addresses in subnet.

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So we can keep that in track.

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So, 1.2.1.x/24

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That looks good.

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Now let's go ahead and
duplicate that four times.

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(mouse clicking)

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Alright, this one over here.

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We're gonna right click
on it and do Text edit.

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(mouse clicking)

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and that one is going to be

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2.4.2.x

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This one down here,

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we'll right click on that and Text edit,

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1.3.1.x

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(keyboard clacking)

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And this one down here,

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will be 3.4.3.x.

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Okay, and let's go ahead and use the

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add an ellipse tool, or Draw an ellipse

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to represent our loopbacks
that we've created.

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We'll put one right here and then

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we'll right click that and hit Duplicate.

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And then we'll drag the new one over here.

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And then, once again, we'll use

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the Add a note tool to
actually draw inside there.

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Loopback 0,

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11.11.11.1

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Duplicate,

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and Edit.

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(keyboard clacking)

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Alright so that gives us everything

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we've done, now, from an IP perspective.

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So let's go ahead and save our project

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as it is.

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And at this point, let's go ahead

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and create a snapshot,
now, of where we are

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with all of our IP addresses intact.

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Before we start adding
routing protocols onto this.

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So I'm gonna create a snapshot,

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Create.

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And I'm gonna say IP

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addresses

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only

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Close.

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(surprised exclamation)

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Ah, but I broke the cardinal rule

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the cardinal rule of snapshots, which is

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The routers must be in a powered

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down state when you do the snapshot.

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That snapshot I just
took might not even work.

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So let's turn everything off.

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Let's create a snapshot again.

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I'll give it the exact same name.

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IP-addresses-only

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And then the one with
the earlier time stamp,

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I will get rid of that.

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There we go.

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Alright.

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And that concludes this
section of the video.

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In the next section we're gonna, finally,

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start adding EIGRP to this topology.

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(electronic whooshing)