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In the previous video, we already learn about how
to remote cisco router and cisco switch in Cisco Packet Tracer.

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There are 2 way, the first way
is using CLI inside the router or switch.

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And the second way is using console cable from a
PC. You are free to use which one do you want.

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And then, in this video we are going to learn
about basic command of cisco devices. The command

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in cisco switch and router will be same. So in
this video, we just will use one of router or switch.

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Because if you are familiar with router
let’s say, you will able to configure a switch.

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But I think the font is to small,
let’s raise the font size first.

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Go to Cisco Packet Tracer and then preference.
Remember that if you use windows, the preference

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will be under edit. Here in the font tab, let’s
set the font size of CLI to 20. And then apply.

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Okay now let’s go to the PC, open
the terminal. And here let’s just ok.

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Okay now the font size is ok. And if we
open the CLI, the font size is also ok.

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Okay now we can start learn about basic
command in cisco. But in this case we will just

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use CLI tab of the router or switch. So we
don’t need a PC. let’s just delete it for now.

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Okay, we will learn about basic cisco
command in the router. Let’s open the router.

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The first thing that you need to know is
that in cisco, there is some permission level.

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The first level is user level or
user mode. If we are in the user mode,

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the symbol will be right angle bracket like this.
Okay so in this case, we are now in the user mode.

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In the user mode, the command will be
limited, we just have read permission.

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To see any command that we can use in
the user mode, we can type question mark.

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Okay this is the commands that
we can use in the user mode.

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There is some basic command to
troubleshooting like ping, and traceroute.

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And here we also have telnet and ssh
command, this is to remote other devices.

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And here if we see, there is no command to

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do a configuration. Because
the permission is read only.

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If we want to do a configuration,
we need to go to privilege mode.

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The privilege mode will be have a full permission.

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To go to privilege mode, we can
use command enable. Here we can see

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that the symbol change to hash like this. This
is means that we are in the privilege mode.

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And remember that privilege mode will be
have full permission. This is means that

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the command that we can use here will
be much more than in the user mode.

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Let’s type question mark
here. Okay here we can see

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any command that we can use in the privilege
mode, and if we see here, we can see a more.

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This is means that we still have other command
that we can use. To see the other command,

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we can type enter. If we use enter
like this, we can see 1 other command.

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We can also use space, if we type space,
we will see many other command at once.

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Okay now we can see here that the command in the
privilege mode is much more than in the user mode.

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Okay next, in the cisco also
have global configuration mode.

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The global configuration mode will be used
to doing a configuration. Remember that

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if you want to configuring anything, you
must go to global configuration mode first.

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To go to global configuration mode,
we can use command configure terminal.

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Okay here we can see a config like this.

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This is means that we are in
the global configuration mode.

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Now, if we already in the global configuration
mode like this, we can do a configuration.

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So once again, always remember that if
you want to doing any configuration,

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you need to go to global configuration mode first.

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If we want to exit from global
configuration mode, we can just type exit.

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Okay now here we can see that
we are in the privilege mode.

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And if we try to exit again, we
will be in the user mode like this.

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Okay now let’s try to enable
again to go to privilege mode.

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I said before that to exit from privilege mode
to the user mode, we can use exit command.

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Beside that, we also can use disable command.
Okay here we can see that we are in the user mode.

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Okay now let’s enable again, and we
are going to do some configuration.

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The first thing that we are going to configure
is a hostname. Hostname is just like the name

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of our devices. By default, the hostname
of cisco router will be Router, and the

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default hostname of cisco switch will be Switch.
Absolutely this will be confusing if the hostname

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of all our router is just Router. This is why we
need to configure the hostname of each devices.

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Now let’s try to configure the hostname.
Remember that if we want to configure anything,

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we need to go to global configuration mode first.
Here let’s go to global configuration mode,

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the command is configure terminal.
Oh I’m sorry, there is a typo here.

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Okay here we can see that now we are
in the global configuration mode.

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Now let’s configure the hostname.

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The command is hostname space the hostname.
In this case the hostname will be Router1.

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And when we enter, we can see here that
the hostname will be change like this.

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Okay now we have done configuring the hostname.
Next we are going to configure a password.

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If you see here, when we go to privilege mode from
user mode, we don’t need to type any password.

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Absolutely this is not secure, because
remember that privilege mode is have

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full permission. The best practice is, we need
to configure a password to go to privilege mode.

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So not anyone can enter privilege mode,
but just some people who know the password.

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Okay now let’s configure the password.
From global configuration mode like this,

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we can type enable password and
the the password. Let’s say 123.

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Okay we have done configuring the password. Now
let’s try to exit. Here we back to privilege mode,

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and then exit again to back to user mode.

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Okay now we are in the user mode. Now let’s try
to enable. Okay here we can see that now when we

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want to go to privilege mode, we need to enter
a password. In this case, the password is 123.

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When you type the password, there is
nothing display in the CLI like this,

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so just type the password and enter. Okay here
we can see that now we are in the privilege mode.

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Now let’s try to use the wrong password. Exit, and
then enable again. I try to use wrong password.

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Here we can see that we are unable to go to
privilege mode. Okay let’s use the right password.

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Next I will show you the other command. Which
is show running-config. Let’s try it first.

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Okay so show running-config is used to see all
of the configuration that we already do.

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Okay here we can see many configuration. But
most of these is the default configuration.

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But here we can see some of
our configuration before,

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here we can see hostname and password
configuration. But here, if we see the

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password configuration, we can see the password
clearly. This is absolutely not secure.

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So how we can configure the password more
secure? I will show you. But before that,

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here we can see more. We can type enter
to see one more line of the configuration,

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or we can type space to see many line of
configuration at once. Or if you want to quit,

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you can type q. Okay here we are
going to quit from here, so type q.

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Okay like I said before, I will show you
how to configure the password more secure.

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Let’s go to global configuration mode.

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Now to configure the password more secure, we
can use enable secret command. If you remember,

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earlier we use enable password command,
but now we will use enable secret command.

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Okay so the command is enable secret and then
the password. Let’s say the password is cisco.

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Okay now let’s show running-config again.

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Here we get an error, why? This is because show
command is the command in privilege mode.

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So if we use show command in the global
configuration mode like this, we will

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get an error. Now let’s exit to privilege mode
first, and then type show running-config again.

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Okay here we can see that we don’t get an
error. But if you want to use show command

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in the global configuration mode, we can
use "do". So here do show running-config.

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Here we can see that we also don’t get
an error. Okay so remember that if you

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want to use show command in the global
configuration mode, we will need a "do".

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And also remember that we only need "do"
if we are in the configuration mode,

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if we in the privilege mode, we will not need
"do". Let’s try.  Here in the privilege mode,

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let’s type do show run. Here we get an error.

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Okay next, here we can see that now we have
2 password. There is an enable secret.

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Pay attention here, the password of enable secret will
be encrypted like this. So this is more secure.

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And remember that if we have 2 password like this,

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so there is an enable secret
and also enable password,

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the password that will used is the enable
secret. Because enable secret is more secure.

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Here let’s try to exit. And then enable
again. Let’s try to use the password

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from enable password, the password is 123. Okay
here we are unable to enter privilege mode.

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Now let’s try to use the password from
enable secret, the password is cisco.

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Okay here we can see that we have
successfully enter the privilege mode.

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Next, we are going to learn how to
remove configuration in cisco. Let’s say,

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here we want to remove enable password.
Because this configuration is no longer used.

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Okay go to global configuration mode.
To remove configuration in cisco,

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we just need to type no and then the
command, so no enable password like this.

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Now let’s try to show run again, remember that
now we are in the global configuration mode,

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so we will need do. So here do show run.

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Okay here we can see that the
enable password is no longer exist.

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Okay I hope you understand
some basic command in cisco.

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I think enough for this video, in the
next video we are going to learn about

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cisco basic command again.

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Thankyou for watching and see you on the next video