WEBVTT

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 Okay. So, each one of these things
 in this setup is running software.

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 It's running a special software that
 Cisco developed called Cisco iOS

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 software, which stands for Inter
-Networking Operating System.

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 So, these things aren't running Windows
 10, they're not running Mac OS

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 or anything like that, they're running
 a special software that Cisco developed

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 called Cisco iOS.

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 And so, I'm going to need to connect to
 each one of these things to configure

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 that iOS. When I say configure it,
 that term might be foreign to you.

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 When I say configure a router switch,
 basically what I mean is let the

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 router switch know, hey, something's
 connected to this interface.

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 Here are the parameters this interface
 needs so it can talk to that device.

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 Here are the parameters or commands you
 need to talk to this other device.

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 That's what I mean by configuring it,
 typing in commands so that the device

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 knows what it should do
 and how it should do it.

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 So, I need to get access to these
 devices so I can do that.

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 So, there's what's called in-band
 and out-of-band connections.

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 So, here's what I'm going to do.

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 Every single one of these, and I think
 I've got another picture of this,

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 every single Cisco router and switch
 that they sell has a collection of

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 interfaces and you can see
 those interfaces on here.

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 And one of those interfaces
 is very special.

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 Let me bring this up right here
 and we call it a console port.

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 So, let me make this
 bigger for you.

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 So, if you can see this right here,
 if you were to zoom in on my routers

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 or switches, you would see that one
 of the interfaces actually labeled,

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 it might not necessarily be blue, but
 it'll be something you'll say console.

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 And when you first purchase a router
 or switch from Cisco or anywhere

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 else, the configuration
 is going to be empty.

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 It's not going to have any, it's going
 to have what we call a default

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 configuration, meaning it doesn't have
 the knowledge it needs to do even

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 the most basic primitive
 of operations.

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 So, you need to connect to your laptop
 or PC to this console port to be

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 able to configure this device.

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 Now, once I have provided minimal configuration
 like in the world of networking,

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 in order for computer number one, to
 talk to computer number two, just

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 like if you're going to send a letter
 from your house to your mom's house,

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 what's the absolute minimum requirement
 that you put on that letter and

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 address, right? If your mom's house does
 not have an address, the network,

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 which is the postal service in this case,
 has no idea how to deliver that

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 letter to its intended
 destination.

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 Same thing is true in computer networks,
 every computer device, whether

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 it be a smartphone or a tablet or a
 laptop, has to have some sort of a

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 unique address. So, it can send data
 to other addresses and it can receive

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 data and it knows when that data comes
 in, oh, this data is coming in

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 to my address, it must be for me.

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 Now, the most common type of address
 that you would see in the world of

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 networking is what's
 called an IP address.

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 IP standing for the internet protocol
 back in like 1974, 75, you know,

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 right around that time frame.

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 Some very smart people got together
 and they said, we need to develop

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 a set of rules, a protocol, because
 that's what a protocol is, a defined

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 set of rules for how to do something,
 a set of rules so that computing

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 devices can talk to each other across
 a network and they developed the

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 internet protocol, a protocol
 for talking over the internet.

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 Now, within the internet protocol,
 there's a lot of rules, but one of

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 the things that's in there says devices
 need an address, they need a descriptive

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 identifier to talk from PCA to PCB or
 PCA to server B, however you want

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 to say it. So an IP address is that
 unique identifier, every device your

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 smartphone, your laptop
 has an IP address.

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 What does that have to do
 with this console port?

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 Well, initially, routers and switches
 don't have any IP addresses, none,

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 zero, zip. So the only way I can get
 into the command line to configure

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 it is via this console port.

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 But once I connect to the console port
 and I have access to the command

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 line, one of the first things I can do
 is put an IP address on that device.

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 And actually an IP address belongs
 not to the device itself.

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 And that's where it's a little
 bit different, right?

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 When you think of like a postal address,
 like 101 First Street, that is

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 the address of like
 your entire house.

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 But think of your houses like this,
 think of your house, you know, your

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 house has many doors, right?

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 You've got your front door,
 you've got your back garage.

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 Those are all entrance
 points into that house.

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 Well, similarly on a router, if I go
 back to my picture of the router

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 here, right? Let's, for example,
 look at this top router here.

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 This router has multiple entrance
 points into the router here.

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 Here's a way that data can go
 in and out of the router.

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 Here's another way that data can
 go in and out of the router.

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 This is a special way.

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 There's another one that
 could go in here.

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 So these addresses called IP addresses
 don't go on the router as a whole.

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 They go on these doors,
 what we call interfaces.

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 So in this case, I've drawn
 like four interfaces.

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 Every interface on the router, every
 point where data could come in or

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 go out needs to have an IP address
 so it can talk to the internet.

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 It needs to have a port of this
 device, which is right here.

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 One of the first things I have to decide
 is, okay, of all my different

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 interfaces I have, which one am I
 going to connect to the network?

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 And whatever interface that is, and
 there might be more than one, what

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 interface that is, I need to put an
 IP address, a descriptive name or

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 identifier on that interface.

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 Once I do that, so once I've identified
 the interface, I've cabled that

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 interface up to a functioning
 existing network.

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 And once I've put an IP address on
 that interface, now I don't need to

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 connect to that console port to get
 into the command line of the router

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 or the switch. I don't have to be physically
 in front of it with a little

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 cable to connect.

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 I can actually be thousands of miles
 away and using the internet protocol,

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 I can send IP packets, which are units
 of data from my laptop through

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 the network going into the center face,
 and I can get access to the command

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 line that way. But I can't
 do that at first.

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 At first, I need to connect
 to the console port.

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 So how am I going to do that
 in this particular case?

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 Well, at minimum, so each one of these
 console ports, let me go back to

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 the picture right here a little you
 can see they have a special type of

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 jack. And I have in front of
 me here all kinds of cables.

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 I got this, let me expand
 this here a little bit.

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 Oops, not that. Let's
 see, how do I do it?

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 Nope, not that. I'll
 figure it out one.

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 There we go. So I got this great
 sort of pink cable right here.

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 I got an orange cable right here.

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 I got a whole slew of first thing I
 have to be aware of is which cable

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 is appropriate for connecting
 to that console port.

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 Let me get back to this.

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 So number one, if I take a look at the
 size and shape of the console port,

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 right, and I got another
 cable right here.

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 So would this cable be appropriate
 to connect to that console port?

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 Well, if you I don't know how well
 this is coming on your screen, but

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 you can see that the shape of that
 cable and the end of that cable is

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 not appropriate to connect
 to that console port.

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 Because this type of interface
 is different.

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 We actually call this type of
 interface a registered jack.

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 So you might see this term RJ45.

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 Let me draw this on here.

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 RJ-45. That is what
 all of these are.

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 Each one of these is an RJ45 jack because
 you can see they all look the

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 same. They've all got
 the same form factor.

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 So this is the the female end of an RJ45
 jack and the male end looks like

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 this. All right, and I actually have
 a better picture for you that I can

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 show you that's that's bigger.

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 So for example, right there, that
 is the male end of an RJ45 jack.

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 So clearly, any way that I'm going
 to connect to this console port, if

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 I'm going to connect to this, it has
 to be one of these cables that has

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 one of these ends on it.

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 So knowing that, I can take this cable
 right here and say, okay, clearly

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 that's not going to be used to connect
 to the console port because that

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 isn't the right kind.

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 But I still have, like I said, I got
 red, I got black, I've got yellow

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 right here. And this is where
 you just have to know this.

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 So a console port, when you buy a Cisco
 router switch, you get a special

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 cable, at least hopefully you
 will, that looks like this.

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 So this cable right here, it does have
 an RJ45 connector on the end of

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 it. And this is what we
 call a console cable.

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 It's a blue, it's a flat cable.

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 And one end of the cable
 has an RJ45 jack.

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 Let me go ahead and disconnect
 this here.

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 And the other end of the cable
 is something different.

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 If I can show that
 to you right there.

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 So here's my RJ45 jack.

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 And this is what we call
 a DB9 connector.

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 You don't have to memorize that.

0:10:30.100000 --> 0:10:32.920000
 Main thing you have to realize is that,
 hey, this type of cable right

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 here is clearly different.

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 Then this type of cable, because this
 type of cable has RJ45 on both sides,

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 this type of cable does not.

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 So this is what we call a flat
 blue Cisco console cable.

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 This end of it right here would go into
 the RJ45 jack, the console port.

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 And this end right here
 fits into your laptop.

0:11:00.380000 --> 0:11:05.120000
 Now most laptops these days don't have
 connectors that look like that.

0:11:05.120000 --> 0:11:06.780000
 There's no place to plug it in.

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 That's why I've got this nifty
 little tool right here.

0:11:09.800000 --> 0:11:15.720000
 So this is a, this is a DB9 connector
 on one end and a USB connector on

0:11:15.720000 --> 0:11:19.660000
 the other. So I'll just connect those
 guys together, connect my cable

0:11:19.660000 --> 0:11:24.560000
 together, screw it in a little
 bit so it doesn't fall apart.

0:11:24.560000 --> 0:11:31.340000
 And I'm going to connect my USB port here
 to the console port on my devices.

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 Now if I want to configure all these,
 which I will, option number one

0:11:37.300000 --> 0:11:41.260000
 is I could connect to the console port
 of this first router, spend a little

0:11:41.260000 --> 0:11:45.140000
 bit of time configuring it, disconnect
 the cable, connect to the console

0:11:45.140000 --> 0:11:49.240000
 port of the second router and do that
 one by one by one, configuring them

0:11:49.240000 --> 0:11:54.120000
 all. But there's a much
 easier way to do this.

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 So this guy right here in the middle,
 this guy right here is an old Cisco

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 router that you actually
 can't buy anymore.

0:12:02.900000 --> 0:12:05.860000
 It's called a Cisco
 2500 series router.

0:12:05.860000 --> 0:12:10.440000
 But it's special in the fact that it
 has, let me go ahead and make this

0:12:10.440000 --> 0:12:20.060000
 a little bit easier.

0:12:20.060000 --> 0:12:30.700000
 Right there. So it has these special
 interfaces right here.

0:12:30.700000 --> 0:12:35.340000
 Those are called async 9 through
 16 and async 1 through 8.

0:12:35.340000 --> 0:12:40.620000
 This particular router is what we call
 an access server, sometimes known

0:12:40.620000 --> 0:12:42.240000
 as a terminal server.

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 What's so special about it?

0:12:43.960000 --> 0:12:52.640000
 Well, these interfaces over here on the
 AUI, these are networking interfaces,

0:12:52.640000 --> 0:12:55.500000
 right? These are interfaces that you
 will need to put an IP address on

0:12:55.500000 --> 0:12:59.320000
 them, connect them with special cables
 to a network, and then they can

0:12:59.320000 --> 0:13:02.160000
 send and receive IP packets.

0:13:02.160000 --> 0:13:07.140000
 However, these interfaces right
 here are not like that.

0:13:07.140000 --> 0:13:12.540000
 An async interface connects to a special
 cable called an octal cable.

0:13:12.540000 --> 0:13:22.320000
 Now you might be wondering what does
 an so notice, it's got a special

0:13:22.320000 --> 0:13:27.380000
 connector. All right, which goes into
 so I'll go back here so back and

0:13:27.380000 --> 0:13:31.560000
 forth. So that connector
 will go into this.

0:13:31.560000 --> 0:13:37.460000
 And then the this cable has eight, that's
 why they call it octal, eight

0:13:37.460000 --> 0:13:39.240000
 cables snaking out of it.

0:13:39.240000 --> 0:13:51.080000
 And at the other end, each one of those
 has an RJ45 console ports of my

0:13:51.080000 --> 0:13:53.220000
 various routers and switches.

0:13:53.220000 --> 0:13:58.480000
 So now, once I have this cable here connected
 to my terminal server, which

0:13:58.480000 --> 0:14:02.640000
 then spreads out to all the console
 ports of my routers and switches,

0:14:02.640000 --> 0:14:06.540000
 all I have to do is
 access this guy.

0:14:06.540000 --> 0:14:08.760000
 I'll go back here a little bit.

0:14:08.760000 --> 0:14:11.920000
 All I have to do is console in.

0:14:11.920000 --> 0:14:16.520000
 So basically, I will establish
 from my laptop, my laptop.

0:14:16.520000 --> 0:14:20.360000
 We'll have, so I'll go ahead
 and draw my laptop over here.

0:14:20.360000 --> 0:14:22.340000
 So here's my laptop.

0:14:22.340000 --> 0:14:24.620000
 I'm going to have my USB.

0:14:24.620000 --> 0:14:27.780000
 So here's my USB connection.

0:14:27.780000 --> 0:14:32.200000
 And that will have the blue flat cable,
 that blue cable, which will terminate

0:14:32.200000 --> 0:14:37.000000
 right here into the console
 port of my terminal server.

0:14:37.000000 --> 0:14:41.520000
 From there, I'll get access to the command
 line of the terminal server.

0:14:41.520000 --> 0:14:46.480000
 And once I have access to that command
 line, using the cot the octal cable,

0:14:46.480000 --> 0:14:52.800000
 I can then get access to the console
 ports of these various devices via

0:14:52.800000 --> 0:14:54.000000
 the octal cable.

0:14:54.000000 --> 0:14:57.860000
 So I don't have to plug and unplug, plug
 and unplug from each one of these

0:14:57.860000 --> 0:15:04.240000
 things. Now, somebody asks here on
 the live question feed, do we need

0:15:04.240000 --> 0:15:07.360000
 to know the configuration
 of a console cable?

0:15:07.360000 --> 0:15:13.020000
 You don't have to know, you know, when
 you think about, when you think

0:15:13.020000 --> 0:15:18.460000
 about cables, for example, this and this,
 obviously there's some big differences

0:15:18.460000 --> 0:15:19.500000
 between them, right?

0:15:19.500000 --> 0:15:23.520000
 Just by looking at the color, but
 the color is just cosmetic.

0:15:23.520000 --> 0:15:29.520000
 But inside, the differences between the
 ends, right, the connectors, even

0:15:29.520000 --> 0:15:33.860000
 between the pinouts, for example.

0:15:33.860000 --> 0:15:40.860000
 Both of these, so this has an RJ45 jack,
 this has an RJ45 jack, both of

0:15:40.860000 --> 0:15:45.220000
 these are meant to do the exact same
 thing, connect into the console port

0:15:45.220000 --> 0:15:47.460000
 of a router or a switch.

0:15:47.460000 --> 0:15:50.600000
 However, I'm going to put my octal
 cable aside here for a moment.

0:15:50.600000 --> 0:15:53.620000
 It's getting kind of messy.

0:15:53.620000 --> 0:15:59.440000
 If I take a look at this, all right,
 this right here is an ethernet cable.

0:15:59.440000 --> 0:16:04.380000
 This black one is not meant to connect
 to the console port and yet it

0:16:04.380000 --> 0:16:07.780000
 still has an RJ45 jack, just
 like the blue one does.

0:16:07.780000 --> 0:16:08.960000
 So what's different?

0:16:08.960000 --> 0:16:10.080000
 There's clearly some differences.

0:16:10.080000 --> 0:16:13.960000
 Well, if I was actually to strip off
 this plastic or rubber coating on

0:16:13.960000 --> 0:16:17.760000
 both of them, you would see that there's
 very thin strands of wire inside

0:16:17.760000 --> 0:16:20.020000
 here and inside here.

0:16:20.020000 --> 0:16:26.400000
 As a matter of fact, if I zoom in, let's
 see here, if I use, for example,

0:16:26.400000 --> 0:16:34.180000
 this picture, right there.

0:16:34.180000 --> 0:16:39.220000
 So this shows you sort of like what the
 interior of an RJ45 jack actually

0:16:39.220000 --> 0:16:43.700000
 looks like. It's actually has
 multiple wires inside of it.

0:16:43.700000 --> 0:16:49.080000
 Now, depending on what that cable is
 used for, it might have some or all

0:16:49.080000 --> 0:16:53.120000
 of these wires. For example, a console
 port doesn't necessarily need to

0:16:53.120000 --> 0:16:56.240000
 have eight wires inside
 of it like we see here.

0:16:56.240000 --> 0:16:58.360000
 It needs far fewer.

0:16:58.360000 --> 0:17:01.000000
 The colors of the wires
 will be different.

0:17:01.000000 --> 0:17:03.300000
 So that's sort of like what makes
 the difference between the cables.

0:17:03.300000 --> 0:17:07.340000
 Now, if you're ever taking any Cisco
 certification test, are they going

0:17:07.340000 --> 0:17:11.700000
 to expect you to know how many wires
 are in this versus how many wires

0:17:11.700000 --> 0:17:15.420000
 are in this? And what are the wire
 colorings and how are they wrapped

0:17:15.420000 --> 0:17:18.420000
 together? No, you're never
 going to need to know that.

0:17:18.420000 --> 0:17:21.340000
 Now, if you actually go into like manufacturing
 and you're working for

0:17:21.340000 --> 0:17:25.000000
 a company that's manufacturing or designing
 cables, then yes, clearly

0:17:25.000000 --> 0:17:26.480000
 you would need to know that.

0:17:26.480000 --> 0:17:30.620000
 But your typical average network engineer
 out there, one out of maybe

0:17:30.620000 --> 0:17:34.940000
 a thousand might be able to answer
 questions like, how many wires are

0:17:34.940000 --> 0:17:38.020000
 in here? What's the thickness
 of the copper wire?

0:17:38.020000 --> 0:17:39.580000
 How are they wrapped
 around each other?

0:17:39.580000 --> 0:17:41.140000
 What do the colors mean?

0:17:41.140000 --> 0:17:43.160000
 You won't need to know that.

0:17:43.160000 --> 0:17:47.640000
 All you need to know is, okay, this
 is a console cable either because

0:17:47.640000 --> 0:17:50.540000
 I bought it that way or
 it was labeled that way.

0:17:50.540000 --> 0:17:54.820000
 This is an ethernet cable and you need to
 know they go in different interfaces.

0:17:54.820000 --> 0:17:58.100000
 Console cable doesn't go
 into an ethernet port.

0:17:58.100000 --> 0:18:00.640000
 An ethernet cable does not
 go into a console port.

0:18:00.640000 --> 0:18:05.340000
 You need to just be able to identify
 what's appropriate for the cable,

0:18:05.340000 --> 0:18:07.380000
 what it should plug into.

0:18:07.380000 --> 0:18:10.740000
 All right, so that being the case, that's
 going to be my step number one

0:18:10.740000 --> 0:18:19.020000
 here. So I'm going to go ahead and connect
 my USB right here into my laptop.

0:18:19.020000 --> 0:18:24.260000
 Now, let me actually take a step
 back here before I even do that.

0:18:24.260000 --> 0:18:28.540000
 So in, now this is of
 course Windows here.

0:18:28.540000 --> 0:18:35.240000
 In the laptop, I'm going to go ahead
 and bring up my control panel.

0:18:35.240000 --> 0:18:37.980000
 Put this right here.

0:18:37.980000 --> 0:18:41.600000
 Okay, so in the control panel, if I
 go to hardware and sound then device

0:18:41.600000 --> 0:18:47.860000
 manager, let's put the device
 manager over here.

0:18:47.860000 --> 0:18:54.300000
 All right, so in the device manager
 right now, it shows me, you know,

0:18:54.300000 --> 0:18:57.060000
 my monitors, my network adapters.

0:18:57.060000 --> 0:19:05.520000
 One thing I'm not seeing is that when
 I use USB adapter, this is called

0:19:05.520000 --> 0:19:07.520000
 a USB to serial adapter.

0:19:07.520000 --> 0:19:11.300000
 That's what it's called USB on one side
 to a serial on the other, because

0:19:11.300000 --> 0:19:17.240000
 a USB interface has electrical signaling
 and different pinouts and wires

0:19:17.240000 --> 0:19:19.600000
 than a serial interface does.

0:19:19.600000 --> 0:19:21.660000
 So this has to convert between
 the two of them.

0:19:21.660000 --> 0:19:27.260000
 What we're going to see is when I plug
 this in to my laptop in the device

0:19:27.260000 --> 0:19:31.380000
 manager right here, I'm going to have
 a new port that comes up that did

0:19:31.380000 --> 0:19:32.240000
 not exist before.

0:19:32.240000 --> 0:19:33.220000
 So watch real closely.

0:19:33.220000 --> 0:19:34.660000
 I'm going to plug this in.

0:19:34.660000 --> 0:19:36.900000
 Okay, just plugged it in.

0:19:36.900000 --> 0:19:40.620000
 Look right below network adapters.


0:19:40.620000 --> 0:19:42.760000
 Now I have something that
 didn't exist before.

0:19:42.760000 --> 0:19:48.140000
 Come an LPT. Honestly, I have
 no idea what LPT stands for.

0:19:48.140000 --> 0:19:49.480000
 Anybody in the live question feed?


0:19:49.480000 --> 0:19:51.020000
 Just random trivial fact.

0:19:51.020000 --> 0:19:53.520000
 Anybody know what LPT stands for?

0:19:53.520000 --> 0:19:57.360000
 I hate seeing acronyms and
 not knowing what they mean.

0:19:57.360000 --> 0:20:00.440000
 But in this particular case, oh,
 I think it might be printer.

0:20:00.440000 --> 0:20:01.520000
 Maybe that's what stands for.

0:20:01.520000 --> 0:20:03.420000
 Anyway, line printer.

0:20:03.420000 --> 0:20:04.340000
 Thank you, Dwayne.

0:20:04.340000 --> 0:20:07.800000
 Line printer. Fantastic.

0:20:07.800000 --> 0:20:11.240000
 Well, in this particular case, by plugging
 that serial to USB adapter

0:20:11.240000 --> 0:20:15.500000
 in there, it gave me a COM
 port COM4 in this case.

0:20:15.500000 --> 0:20:17.320000
 Why do I need to know that?

0:20:17.320000 --> 0:20:21.960000
 Because I'm going to bring up some software
 in my laptop that's designed

0:20:21.960000 --> 0:20:26.120000
 to send characters to the console
 port of my router switch.

0:20:26.120000 --> 0:20:31.080000
 And that software, which is called a
 terminal server or an access terminal

0:20:31.080000 --> 0:20:35.720000
 client, it's called terminal client
 software, needs to know which COM

0:20:35.720000 --> 0:20:37.220000
 port it's connecting to.

0:20:37.220000 --> 0:20:39.000000
 And unfortunately, this
 is kind of random.

0:20:39.000000 --> 0:20:42.900000
 If I unplug this and plug it back in
 again, it could end up as COM6 or

0:20:42.900000 --> 0:20:46.780000
 COM9. But I needed to know
 what that COM number was.

0:20:46.780000 --> 0:20:49.860000
 So I'm going to go ahead and bring
 up the software right now.

0:20:49.860000 --> 0:20:52.260000
 There's lots of software
 that you can use.

0:20:52.260000 --> 0:20:56.460000
 The software I'm going to
 use is called secure CRT.

0:20:56.460000 --> 0:20:59.120000
 And it looks like this.

0:20:59.120000 --> 0:21:03.760000
 So let me just minimize
 this a little bit.

0:21:03.760000 --> 0:21:06.700000
 So this is what secure
 CRT looks like.

0:21:06.700000 --> 0:21:10.260000
 And I've already got something
 here called console.

0:21:10.260000 --> 0:21:15.660000
 But if I right click on that
 and show you the properties.

0:21:15.660000 --> 0:21:18.860000
 And secure CRT isn't the only one you
 can download free ones like hyper

0:21:18.860000 --> 0:21:21.120000
 terminal. That's one of them.

0:21:21.120000 --> 0:21:25.720000
 Putty PUTTY. But when you're connecting
 to the console port of a router

0:21:25.720000 --> 0:21:30.620000
 switch, you have to have some
 terminal client software.

0:21:30.620000 --> 0:21:34.680000
 So just Google for that Google terminal
 client software for like Windows

0:21:34.680000 --> 0:21:37.600000
 seven or Windows 10 or whatever it
 is that you happen to be using.

0:21:37.600000 --> 0:21:41.020000
 And secure CRT is the one
 I'm using right here.

0:21:41.020000 --> 0:21:43.080000
 So step number one.

0:21:43.080000 --> 0:21:51.100000
 For example, if I was to do a new
 connection file quick connect.

0:21:51.100000 --> 0:21:53.220000
 So let's say I was doing
 a new connection.

0:21:53.220000 --> 0:21:56.040000
 Well, you can see my options here.


0:21:56.040000 --> 0:21:57.900000
 I'm going to be using serial.

0:21:57.900000 --> 0:22:03.120000
 Now if I was actually sending IP packets
 to this device over the network,

0:22:03.120000 --> 0:22:08.000000
 if it already had an if my router
 switch already had an IP address.

0:22:08.000000 --> 0:22:13.780000
 And I want to send commands to it via
 IP, then I'd be using like SSH or

0:22:13.780000 --> 0:22:17.040000
 telnet. These are applications
 that run in your laptop.

0:22:17.040000 --> 0:22:21.440000
 They're specifically designed to take
 commands you type into the keyboard.

0:22:21.440000 --> 0:22:26.280000
 Put those commands inside of IP packets
 and then send those IP packets

0:22:26.280000 --> 0:22:28.200000
 to wherever you want them to go.

0:22:28.200000 --> 0:22:31.980000
 But my particular case, my routers and
 switches, my terminal server doesn't

0:22:31.980000 --> 0:22:33.260000
 have any IP yet.

0:22:33.260000 --> 0:22:35.640000
 So I need to use my USB
 to serial connection.

0:22:35.640000 --> 0:22:38.620000
 So that's why I need to
 select serial on here.

0:22:38.620000 --> 0:22:42.360000
 And notice it says, okay,
 what COM port am I using?

0:22:42.360000 --> 0:22:44.380000
 I saw that it was COM4.

0:22:44.380000 --> 0:22:50.040000
 And the default settings for the console
 ports on routers and switches.

0:22:50.040000 --> 0:22:58.440000
 And this is something
 per second, 9600.

0:22:58.440000 --> 0:23:02.800000
 The rest of it I can leave
 9608, none and one.

0:23:02.800000 --> 0:23:04.800000
 So you'll probably want
 to memorize that.

0:23:04.800000 --> 0:23:08.420000
 So this is the basic settings here
 for connecting to the console port

0:23:08.420000 --> 0:23:10.740000
 on the Cisco router switch.

0:23:10.740000 --> 0:23:12.160000
 Select the COM number.

0:23:12.160000 --> 0:23:14.180000
 And that's why I needed
 the device manager.

0:23:14.180000 --> 0:23:16.940000
 That's why I needed this when I
 plugged in my cable, it told me.

0:23:16.940000 --> 0:23:22.140000
 So for example, if I unplug
 it, all right, it's gone.

0:23:22.140000 --> 0:23:23.660000
 Now go ahead and plug it in again.


0:23:23.660000 --> 0:23:25.880000
 Let's see if it gives
 me COM4 again.

0:23:25.880000 --> 0:23:30.780000
 So let's see here.

0:23:30.780000 --> 0:23:33.700000
 Yep, fortunately it gave me COM4, but
 it's not always going to give me

0:23:33.700000 --> 0:23:34.780000
 the same number.

0:23:34.780000 --> 0:23:39.060000
 So you need your COM number
 9608, none and one.

0:23:39.060000 --> 0:23:43.100000
 And that will get me what I need.

0:23:43.100000 --> 0:23:49.100000
 Okay, so step number one was to plug
 in that USB to serial cable into

0:23:49.100000 --> 0:23:51.120000
 my laptop. Do all this.

0:23:51.120000 --> 0:23:58.140000
 Step number two, plug this end of it
 into the console port of my terminal

0:23:58.140000 --> 0:23:59.420000
 server right here.

0:23:59.420000 --> 0:24:01.340000
 So I'm just going to lean
 over and do that.

0:24:01.340000 --> 0:24:06.240000
 All right, let's plug in.

0:24:06.240000 --> 0:24:10.460000
 Step number three is
 turn that puppy on.

0:24:10.460000 --> 0:24:13.960000
 Now before I do that, I'm going to
 go ahead and start up my connection

0:24:13.960000 --> 0:24:18.160000
 here. So I'll say, I'll
 just cancel all that.

0:24:18.160000 --> 0:24:19.840000
 I already have one here.

0:24:19.840000 --> 0:24:24.460000
 Okay, now as soon as I press the power
 button on this router, we should

0:24:24.460000 --> 0:24:29.020000
 see something. Hopefully, if not,
 it's going to be very irritating.

0:24:29.020000 --> 0:24:29.940000
 All right, great.

0:24:29.940000 --> 0:24:35.140000
 So there we go. So what we're seeing
 right now is the boot up process,

0:24:35.140000 --> 0:24:40.280000
 otherwise called post the power
 on self test of the router.

0:24:40.280000 --> 0:24:43.860000
 So it's going to take a minute or so,
 but it's basically like checking

0:24:43.860000 --> 0:24:47.520000
 its memory at this point, it's saying,
 okay, you know, which memory location

0:24:47.520000 --> 0:24:48.700000
 has my software?

0:24:48.700000 --> 0:24:49.700000
 Oh, there it is.

0:24:49.700000 --> 0:24:51.820000
 Let me load my Cisco iOS software.


0:24:51.820000 --> 0:24:53.920000
 So it's doing that.

0:24:53.920000 --> 0:24:58.340000
 And then within like a minute or two,
 it will give me access to the command

0:24:58.340000 --> 0:25:01.520000
 line so I can actually
 start typing commands.

0:25:01.520000 --> 0:25:06.760000
 Now, while it's doing that, why
 am I connecting to this guy?

0:25:06.760000 --> 0:25:09.760000
 Right? Why am I connecting
 to this terminal server?

0:25:09.760000 --> 0:25:13.440000
 Because, ultimately, I want to
 make life easier for myself.

0:25:13.440000 --> 0:25:16.260000
 Instead of having to connect to the
 console port of each and every one

0:25:16.260000 --> 0:25:20.980000
 of these devices, I want to connect my
 octal cable, one end of it to this.

0:25:20.980000 --> 0:25:27.020000
 And I want to connect these RJ45 ends
 to the console ports of all my other

0:25:27.020000 --> 0:25:30.320000
 devices. So while this guy's booting
 up, I'm going to get out of the line

0:25:30.320000 --> 0:25:31.680000
 of fire here for a second.

0:25:31.680000 --> 0:25:33.360000
 And I'm going to do that.

0:25:33.360000 --> 0:25:36.860000
 And I'm just going to go in a
 logical sequence right here.

0:25:36.860000 --> 0:25:43.480000
 So now before I do that, now why not
 just connect everything together?

0:25:43.480000 --> 0:25:50.100000
 To me, it makes more sense
 to go back to my diagram.

0:25:50.100000 --> 0:25:52.480000
 My whiteboard right here.

0:25:52.480000 --> 0:25:54.940000
 And build out my drawing.

0:25:54.940000 --> 0:25:59.460000
 Because once I've built out my drawing,
 and I can figure out, okay, how

0:25:59.460000 --> 0:26:00.820000
 do I want to connect
 things together?

0:26:00.820000 --> 0:26:07.100000
 For example, if I have something here,
 here, here, here, here, and here,

0:26:07.100000 --> 0:26:11.480000
 it makes sense to me that when I'm in
 my terminal server, that I can get

0:26:11.480000 --> 0:26:15.520000
 to this by, you know, this be device
 number one, this to be device two,

0:26:15.520000 --> 0:26:18.860000
 three, four. So I need
 to figure out.

0:26:18.860000 --> 0:26:27.500000
 And because if I go back to my octal
 cable, each one of these ends is

0:26:27.500000 --> 0:26:31.580000
 labeled. You can't really
 see it very well.

0:26:31.580000 --> 0:26:34.080000
 But each one of these things here has
 a little label like this one here

0:26:34.080000 --> 0:26:37.080000
 says five, this one
 here says four.

0:26:37.080000 --> 0:26:40.640000
 And that's going to be important because
 once I connect this, for example,

0:26:40.640000 --> 0:26:44.460000
 number four into a console port of one
 of these routers or switches from

0:26:44.460000 --> 0:26:48.100000
 the terminal server, I'm going to have
 to type in a command to say, to

0:26:48.100000 --> 0:26:51.780000
 get to switch number one,
 go to number four.

0:26:51.780000 --> 0:26:54.920000
 So it makes sense to me that, okay,
 well, you know, whichever is number

0:26:54.920000 --> 0:26:59.980000
 one on here, here's number one, I want
 this to plug into device number

0:26:59.980000 --> 0:27:02.160000
 one in my topology.

0:27:02.160000 --> 0:27:06.340000
 It would be kind of confusing if I had
 to type in number one here to get

0:27:06.340000 --> 0:27:09.000000
 into device five in my topology.

0:27:09.000000 --> 0:27:10.720000
 It would confuse me.

0:27:10.720000 --> 0:27:14.520000
 So that's why I want to work up my
 topology first before I plug in my

0:27:14.520000 --> 0:27:15.460000
 octal cable lines.