WEBVTT

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 In this video, which is in section two
 of the Cisco Certified Technician

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 series for routing and switching, we're going
 to talk about copying configuration

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 files. My name is Keith Bogart and
 I will be your instructor for this

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 video. In this video, the primary things
 I want to talk about are easily

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 reverting to a default configuration
 file, how you can do that, how you

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 can copy config files from your router
 or switch to your laptop, and just

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 the opposite, how you take those files
 that were copied to your laptop

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 and then copying them back to
 the router or the switch.

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 So let's start by talking about easily
 reverting to a default configuration

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 file. Now chances are in a production
 live environment, you're not going

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 to be taking your routers or switches
 and very frequently setting them

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 back to a factory default state.

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 However, certainly if you're practicing
 for a certification exam like

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 the CCT, the CCNA or anything on up,
 there's going to be plenty of times

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 when you're done with a particular lab,
 you want to wipe out the configuration

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 on that router or switch and bring
 it back to a factory default state

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 so you can start building
 up another lab.

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 Now normally, what would the
 process be to do that?

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 Well on a router, the process would be
 simply to type in the command write

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 erase. So for example, I'll go over
 here, go on to router and you just

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 simply go into enable mode and there's
 actually two commands that do the

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 exact same thing.

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 You could type write erase or most people
 just shorten that to WR space

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 erase. Then I'll ask you, do you wish
 to delete your NV RAM contents and

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 you just hit enter and now the NV
 RAM contents have been erased.

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 Another command that does the exact
 same thing that actually when you're

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 pursuing your CCNA, they would prefer
 that this command is much longer,

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 it's erase startup-config.

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 That does the exact same thing.

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 It erases the NV RAM file system.

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 So write erase, NV RAM, but
 then you're not done.

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 This thing still has the running config,
 it still has all of the stuff

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 you just did in the lab
 you just completed.

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 So now what you would have to do is
 type the reload command, which is

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 like power cycling the device.

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 It actually warns you it says, hey,
 this is iOS's way of saying I see

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 a discrepancy here.

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 Right now I have a running config that
 has a whole bunch of stuff in it.

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 When I reload, I'm going to be loading
 my startup config, but I don't

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 see a startup config,
 there's nothing here.

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 So do you want me to save what's in
 the running config to the startup

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 config? Well in this case, my answer would
 be no, because my whole objective

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 is to reload this guy so it comes up
 with a clean slate where it's empty,

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 it has nothing in it.

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 So I would say no, I don't
 want to save it.

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 Then it says do you
 wish to reload?

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 Yes, I do. And now I'd have to sit back
 for about somewhere between three

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 and five minutes and watch
 this thing reload.

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 It takes quite a while depending on
 the platform that you're on for it

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 to reload, but it'll be a minimum of
 two minutes, sometimes as much as

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 five minutes. Is there
 a way to speed this up?

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 Yes, there is. So let me go
 over to another device now.

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 So here I'm on a device where
 I've already done that.

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 So you can't avoid
 doing that once.

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 That process that I went through of clearing
 the config with a right erase

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 and then reload, you got to do that
 at least one time to set it back to

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 a factory default state.

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 Now on a switch, I didn't show you on
 a switch, let me show you the series

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 of steps on a switch,
 it's almost identical.

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 On a switch, you still have to get into
 privileged exec mode, type right

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 erase, and yes hit enter.

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 Okay, but there's one additional file
 in a switch that you have to delete

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 as well. All of the VLAN and VTP information
 is stored in a separate file

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 called the VLAN.dat file.

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 And that file, if it's not erased,
 well, when you reload the box, the

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 running config will be empty, but your
 VLANs and your VTP stuff will still

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 be there. So if I truly want to start
 a switch from a factory default

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 state, I have to also delete
 that VLAN.dat file.

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 So to do that, you would say
 delete flash colon VLAN.dat.

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 So I'm saying delete flash memory, that
 particular file in flash memory.

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 Now be very careful
 with this command.

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 Why? If I accidentally typed delete
 flash colon and then hit enter and

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 then reload the box, guess what?

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 Well, there's something very
 critical in flash memory.

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 I don't want to delete my Cisco
 software image, my iOS software.

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 And if I hit delete flash colon right
 now, that would be wiped out.

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 And then I'd have to go through some
 disaster recovery process to put

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 a new iOS image on this box,
 which would take a long time.

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 So I don't want to delete
 everything in flash.

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 I just want to delete
 my VLAN.dat file.

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 That's it. And it'll say, OK, is
 that the name you want to delete?

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 Yes, I'm going to hit
 my return key again.

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 It confirms one more time.

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 Are you sure? So it's really
 being serious here, yes.

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 OK, and now I can
 reload the switch.

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 It will ask me once again, do
 I want to save my config?

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 No, I don't, because I want to set
 this guy back to factory defaults,

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 proceed with reload.

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 And once again, I'm going to have to sit
 back here for three or four minutes

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 until it comes back up.

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 Now, eventually when it comes back up,
 it will present me with the system

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 configuration dialog or the initial
 configuration dialog.

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 This is your proof that there
 was no startup configuration.

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 If it had startup configuration,
 I wouldn't be seeing this.

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 So this is great.

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 So I had to do this at least once to
 truly get my device back to a factory

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 default state. So I'm going to ignore
 the system configuration dialog.

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 I don't want to do anything there.


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 So I'm going to say, would
 you like to enter it?

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 No, I don't want to enter it.

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 And then on some devices, some routers,
 it might say, do you wish to terminate

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 auto install? And yes, I would
 want to terminate auto install.

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 It looks like this box probably is
 not going to prompt me for that.

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 So let's just wait for a moment.

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 Okay, so now it's back.

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 So now this router is in
 a factory default state.

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 I erased my envy ram that
 has my startup config.

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 I reloaded it. It's in a
 factory default state.

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 Now, before I do anything
 else, here is the trick.

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 I will go into enable mode.

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 Now right now my running, remember
 my startup config was empty.

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 And so now my running
 config is the default.

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 It has really nothing in it other than
 what it comes up with by default.

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 So now what I'm going to do is I'm going
 to save my running config, copy

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 run, but I'm not going to save
 it to my startup config.

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 I'm going to say copy run and I
 want to save it to flash memory.

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 And let's give it a unique
 name that I can remember.

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 So in the future, when I want to convert
 this thing back to a default

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 configuration, I'll
 remember that name.

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 I typically like to use it's called
 clean slate, clean dash slate.

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 So what this is doing here is I'm saying
 take my running configuration,

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 which right now really has nothing
 in it, and save it to flash memory

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 and rename it as clean slate.

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 And this case is going to say there's
 already a file there because I've

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 already done this
 in subsequent lab.

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 So I'm just going
 to overwrite that.

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 Okay, so now within my flash memory,
 I have this file called clean dash

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 slate, which is very small.

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 There really has nothing on it.

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 It's just my default
 configuration.

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 And that's it. So now I go
 along and I do my lab.

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 Okay, I'll give it
 some new host name.

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 Host name Keith.

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 I'll configure rip version two.

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 I'll put some interface in
 here with an IP address.

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 Okay, and I'm done.

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 I'm done with my lab.

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 And now I want to once again revert this
 back to a default configuration.

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 Now instead of doing the writer race
 and reload and sitting around and

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 grabbing a cup of coffee for four or
 five minutes while it goes to the

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 reload process, I can do it much more
 quickly because now I have still

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 within my flash memory, this
 file called clean slate.

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 And I can revert to that with
 the config replace command.

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 The config replace command says, look,
 I'm going to specify a configuration

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 somewhere in flash memory,
 maybe on a TFTP server.

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 What I want you to do is this file
 I'm specifying, I want you to swap

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 it with my existing
 running config.

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 So when I say config replace flash
 colon clean dash slate, as soon as

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 I hit enter, what's going to happen is
 it's going to take my running config,

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 completely destroy it and swap it for
 my clean slate config, which has

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 absolutely nothing on it.

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 Now it's going to warn me.

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 It's going to say, are you
 sure you wish to do this?

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 Yes, I am sure I do want to do it.


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 Now sometimes also what you will see
 is if Cisco iOS software recognizes,

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 huh, the running config is this big
 and the configuration you want to

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 swap it for is like less
 than 50% of that.

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 It'll actually tell you that.

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 It'll say the config you want
 to replace is 50% less.

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 Are you sure you want to do this?

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 In this particular case,
 I didn't see that.

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 And now you can see my host name changed
 because I'm back to my clean

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 slate config. So I just saved myself four
 or five minutes of time of having

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 to reload this box because I had already
 saved the default config and

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 now I can revert back to it as many times
 as I want with my config replace

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 command. So hopefully they'll save you
 a lot of times and labs and things

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 like that if you ever want to revert
 back to a default configuration.

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 You can also do that
 on a switch as well.

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 Now one thing to remember though about
 the switch is when you use the

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 config replace command, all you're doing
 is you're swapping your current

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 running config for the configure replacing
 it with does not affect your

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 VTP file. So it will not affect
 your current VLANs.

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 It will not affect your
 VTP configuration.

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 So you're not truly going back to a
 default configuration on a switch

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 whereas you are doing
 it on a router.

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 Now let's move on to
 the next section.

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 How do I save a configuration
 from a router to my laptop?

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 So that's real easy.

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 So first thing you want to do normally
 when we issue the show run command,

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 if your configuration is any more than
 about 30 lines which it probably

0:11:34.180000 --> 0:11:47.860000
 will be, you will get something like to
 hit space bar and then do it again,

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 space bar and then hit again until you
 get all the way down to the bottom.

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 Well if I currently, if I copied this
 to a text file on my computer it

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 would include these hyphen, hyphen,
 more hyphen, hyphen in the config

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 file. I probably don't want that.

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 So a couple of things you can
 do which are real quick.

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 So number one, one easy way you can
 do it is you can open up your text

0:12:14.600000 --> 0:12:17.480000
 editor, whatever that
 happens to be.

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 Let me go ahead and get
 to my text editor here.

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 So I'm going to bring up notepad and
 what I can do is I can say, oh well

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 you know all I want to copy
 is this portion of my EIGRP.

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 So I can just highlight it.

0:12:35.260000 --> 0:12:39.100000
 Now this really depends on the terminal
 emulation program you're working

0:12:39.100000 --> 0:12:43.100000
 with. I'm working with secure CRT and
 a lot of the other ones are like

0:12:43.100000 --> 0:12:48.580000
 that as well. With secure CRT when
 you copy something by default, it's

0:12:48.580000 --> 0:12:52.840000
 when I should say when you highlight
 something it's also copying it by

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 default. So this is already copied into
 the memory buffer of my laptop.

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 So now if I go to notepad and notepad
 I just right click I can hit paste

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 and there it is.

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 Now I can just save that
 portion as a text file.

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 So just highlighting something
 copies it automatically.

0:13:10.360000 --> 0:13:14.360000
 I don't have to do control C
 or right click and do cousin.

0:13:14.360000 --> 0:13:18.320000
 Matter of fact if I do right click
 right now when I do this it's going

0:13:18.320000 --> 0:13:21.520000
 to try to paste this
 back into secure CRT.

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 I don't want to do that.

0:13:23.280000 --> 0:13:26.400000
 So that's one way you can copy
 portions of your config.

0:13:26.400000 --> 0:13:30.480000
 Just highlight it and then go to
 your text editor and paste it in.

0:13:30.480000 --> 0:13:36.960000
 Now there's another
 way you can do it.

0:13:36.960000 --> 0:13:41.800000
 Let's say I want to capture the whole
 running config from start to finish

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 without it occasionally pausing
 and hitting more.

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 Well I could just type the command terminal
 monitor or the short end of

0:13:52.440000 --> 0:13:54.880000
 that is just term mon.

0:13:54.880000 --> 0:14:00.420000
 And term mon says and now I'm going
 to type a number like 10 or 15 or

0:14:00.420000 --> 0:14:05.080000
 50. Whatever number that is that's going
 to tell the system how many lines

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 of output it should show me before
 it pauses and says more.

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 So for example if I say term mon
 5 term mon maybe 5 is too little.

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 Terminal monitor 10.

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 Apparently it has something.

0:14:26.980000 --> 0:14:31.240000
 I'm sorry. It's not terminal
 monitor my bad.

0:14:31.240000 --> 0:14:32.800000
 It's terminal length.

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 Term length 5. Terminal length 5.

0:14:38.900000 --> 0:14:44.120000
 So now when I do show run look at that
 it only shows me 5 lines of output

0:14:44.120000 --> 0:14:45.880000
 before it hits more.

0:14:45.880000 --> 0:14:50.440000
 I'm going to be hitting the space bar
 forever or I could type term length

0:14:50.440000 --> 0:14:57.160000
 50 and now when I do show run it shows
 me a lot more output before hitting

0:14:57.160000 --> 0:14:59.880000
 more. What's my objective here?

0:14:59.880000 --> 0:15:05.060000
 My objective is I want to hit a command
 like show run and have the whole

0:15:05.060000 --> 0:15:09.240000
 thing scroll from start to finish
 without pausing at all.

0:15:09.240000 --> 0:15:13.120000
 I don't want to see this more stuff in here
 so I can get my whole configuration

0:15:13.120000 --> 0:15:17.260000
 and then copy and paste
 that into a text file.

0:15:17.260000 --> 0:15:22.940000
 So to accomplish that that's the
 terminal length 0 command.

0:15:22.940000 --> 0:15:24.880000
 That means don't pause at all.

0:15:24.880000 --> 0:15:28.300000
 Whatever command I issue now it will
 show me the whole thing from start

0:15:28.300000 --> 0:15:32.800000
 to beginning. Start to end so show
 run and now it's just going to keep

0:15:32.800000 --> 0:15:37.500000
 going and going and going until
 it hits the very end.

0:15:37.500000 --> 0:15:45.220000
 Now it makes it a lot easier for me to
 scroll up to the top and I'll probably

0:15:45.220000 --> 0:15:48.260000
 want to start right about here.

0:15:48.260000 --> 0:15:53.120000
 Highlight the whole thing remember
 as I'm highlighting it it's copying

0:15:53.120000 --> 0:15:59.320000
 it and now I can go over to my notepad
 right click and do paste and it

0:15:59.320000 --> 0:16:00.680000
 copies the whole thing.

0:16:00.680000 --> 0:16:05.400000
 Now I've got my whole configuration
 file that I can save externally.

0:16:05.400000 --> 0:16:08.900000
 So that's another
 way you can do it.

0:16:08.900000 --> 0:16:12.360000
 Now there's a third way that's even
 easier than that save yourself some

0:16:12.360000 --> 0:16:19.260000
 time. So do this start out with terminal
 length 0 you're going to want

0:16:19.260000 --> 0:16:24.240000
 to do that type show run but don't hit
 the enter key yet just get it all

0:16:24.240000 --> 0:16:26.720000
 set up in advance show run.

0:16:26.720000 --> 0:16:31.400000
 Now this will depend on the terminal application
 program that you're running

0:16:31.400000 --> 0:16:35.940000
 with secure CRT and a lot of other ones
 you would go up to where it says

0:16:35.940000 --> 0:16:39.080000
 transfer. Let me zoom in on that a little
 bit if you can see that where

0:16:39.080000 --> 0:16:47.020000
 it says transfer and I'm going to hit
 transfer receive ASCII and now it's

0:16:47.020000 --> 0:16:49.360000
 going to ask me okay where do
 I want to store that file.

0:16:49.360000 --> 0:16:53.300000
 Well let's just store it in my particular
 case to the desktop in a folder

0:16:53.300000 --> 0:16:58.660000
 called config files and I'm going to
 give it some descriptive name I'll

0:16:58.660000 --> 0:17:02.640000
 say sample config.

0:17:02.640000 --> 0:17:05.940000
 Now I'm going to hit receive.

0:17:05.940000 --> 0:17:10.500000
 Let me go ahead and
 scroll out here.

0:17:10.500000 --> 0:17:16.940000
 Now as soon as I hit receive from that
 moment anything that is shown on

0:17:16.940000 --> 0:17:20.340000
 my monitor will be captured
 as a text file.

0:17:20.340000 --> 0:17:24.360000
 Now notice I've already got it set up
 to show run so the moment I go back

0:17:24.360000 --> 0:17:28.560000
 and I just hit enter it'll automatically
 scroll through the entire running

0:17:28.560000 --> 0:17:39.560000
 config so I'm going to
 hit file right now.

0:17:39.560000 --> 0:17:43.960000
 Now I'm done so I'm going
 to go back to transfer.

0:17:43.960000 --> 0:17:47.720000
 Notice that receive ASCII is checked
 I'm going to click it to uncheck

0:17:47.720000 --> 0:17:53.820000
 that and now I've got that whole
 thing stored on my desktop.

0:17:53.820000 --> 0:17:57.740000
 Let me show you where that is.

0:17:57.740000 --> 0:18:05.820000
 So here's my config files if I double
 click that and there it is there's

0:18:05.820000 --> 0:18:13.520000
 sample config. Now notice the file
 type is file that's not a big deal

0:18:13.520000 --> 0:18:18.220000
 now if I want to read it if I double
 click that it's going to say okay

0:18:18.220000 --> 0:18:20.280000
 well what do you want me
 to use to open file.

0:18:20.280000 --> 0:18:27.020000
 I'll just open up notepad and there
 it is there's the whole thing.

0:18:27.020000 --> 0:18:32.100000
 So now I have saved that to
 my laptop for future use.

0:18:32.100000 --> 0:18:33.680000
 So now let's talk about
 the last part.

0:18:33.680000 --> 0:18:38.940000
 What if I want to take a file like
 this and put it back onto my router

0:18:38.940000 --> 0:18:42.300000
 or switch. Well there's a
 couple of ways to do that.

0:18:42.300000 --> 0:18:44.840000
 Number one I could copy
 and paste this.

0:18:44.840000 --> 0:18:48.160000
 So I'll probably start right
 here where it says version.

0:18:48.160000 --> 0:18:55.920000
 Just copy the whole thing all
 the way down right click copy.

0:18:55.920000 --> 0:18:58.760000
 Now I'll go to my router.

0:18:58.760000 --> 0:19:05.520000
 I'll type config T because what if
 I just right clicked and copied it

0:19:05.520000 --> 0:19:09.320000
 right now. Well for right clicked and
 copied all this stuff right now

0:19:09.320000 --> 0:19:12.200000
 I'm not in configuration mode.

0:19:12.200000 --> 0:19:16.180000
 It'll try to paste this all in at privileged
 exec level and I'll get nothing

0:19:16.180000 --> 0:19:18.240000
 but a whole slew of
 error messages.

0:19:18.240000 --> 0:19:23.020000
 So I first need to put myself in the correct
 level which is global configuration

0:19:23.020000 --> 0:19:29.640000
 mode and now I can right click
 and paste all that stuff in.

0:19:29.640000 --> 0:19:33.980000
 So that's one way I can do it.

0:19:33.980000 --> 0:19:38.800000
 Okay what's another
 way I could do it.

0:19:38.800000 --> 0:19:40.440000
 Well let's do this.

0:19:40.440000 --> 0:19:46.380000
 Config replace flash colon.

0:19:46.380000 --> 0:19:51.420000
 Clean dash slate let's get this
 thing back to a default state.

0:19:51.420000 --> 0:20:00.120000
 Okay so there's nothing on here anymore
 so I went back to a default state

0:20:00.120000 --> 0:20:04.000000
 like I showed you just a few minutes
 ago in the video and there's nothing.

0:20:04.000000 --> 0:20:10.620000
 No IP addresses pretty
 much nothing on here.

0:20:10.620000 --> 0:20:16.920000
 Okay another way I could do this from
 the transfer menu instead of doing

0:20:16.920000 --> 0:20:22.540000
 receive ASCII I could do send ASCII
 which means I'm going to take some

0:20:22.540000 --> 0:20:26.380000
 ASCII I have on my laptop which is
 that file and I'm going to send it

0:20:26.380000 --> 0:20:30.680000
 to my router. Send ASCII.

0:20:30.680000 --> 0:20:34.200000
 So let's select the file.

0:20:34.200000 --> 0:20:36.220000
 It's under here.

0:20:36.220000 --> 0:20:38.340000
 Now right now it's just
 looking for text files.

0:20:38.340000 --> 0:20:42.400000
 Hey where is it where's that file well
 when I saved it it didn't have

0:20:42.400000 --> 0:20:47.720000
 a .txt extension so from text files
 I'm going to select here all files

0:20:47.720000 --> 0:20:51.640000
 and there it is sample config.

0:20:51.640000 --> 0:20:55.900000
 Now as soon as I hit send it's
 going to try to send it.

0:20:55.900000 --> 0:20:58.080000
 Let's see if it works.

0:20:58.080000 --> 0:21:05.480000
 Send. Oh my gosh look at this I'm getting
 all this invalid input detected.

0:21:05.480000 --> 0:21:07.920000
 It's for the exact same reason.

0:21:07.920000 --> 0:21:14.280000
 It's taking this file that we saw right
 here and trying to copy it in

0:21:14.280000 --> 0:21:19.740000
 but notice where was I when I did this
 command I was at privilege exec

0:21:19.740000 --> 0:21:24.520000
 level. You can't copy and paste this
 thing in from privilege exec level.

0:21:24.520000 --> 0:21:27.980000
 So to make life easier for me in the
 future what I should probably do

0:21:27.980000 --> 0:21:32.980000
 is take my text file get rid of all
 this junk here at the beginning and

0:21:32.980000 --> 0:21:41.760000
 type enable I'll put a put a exclamation
 point there just to make it a

0:21:41.760000 --> 0:21:49.580000
 little bit easier and then type config
 T enter and then save it that way.

0:21:49.580000 --> 0:21:51.220000
 So now let me just save my file.

0:21:51.220000 --> 0:21:55.680000
 So now my file my text file actually
 starts out with enable and config

0:21:55.680000 --> 0:22:00.700000
 T so no matter what level I'm in now
 when I try to put this into my router

0:22:00.700000 --> 0:22:03.340000
 it should work without
 any problems.

0:22:03.340000 --> 0:22:07.780000
 So let me just close this down
 and let's try that again.

0:22:07.780000 --> 0:22:11.200000
 Transfer. Send ASCII.

0:22:11.200000 --> 0:22:15.000000
 All files. There it is.

0:22:15.000000 --> 0:22:20.120000
 Send. And now because enable and config
 T are the first initial commands

0:22:20.120000 --> 0:22:24.080000
 of the file it puts
 it in just fine.

0:22:24.080000 --> 0:22:28.800000
 So those are some nice and easy ways
 for copying files from the router

0:22:28.800000 --> 0:22:33.420000
 to your laptop and then vice versa from
 taking those files from the laptop

0:22:33.420000 --> 0:22:36.820000
 and copying them back onto
 the router or the switch.