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In the previous section, we already learn
about network automation using paramiko.

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Next in this section, we are going to learn
network automation using netmiko.

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What is netmiko?

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We will learn more about netmiko later in
the next video.

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Now we are going to setup the topology first.

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Let’s just start, create new project, let’s
say the name is network automation netmiko.

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Let’s import the ubuntu server, and then
let’s also import some router,

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here we can type shift and then drag and drop the router,
let’s import 5 router.

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Okay now we have 5 router, this is router 1,
router 2, router 3, router 4, and this is router 5.

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Now let’s connecting all router to the switch.

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Let’s also connecting the switch to ubuntu
server.

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Remember that in the ubuntu server, the interface
that connected to gns3 is the second ethernet,

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so ethernet 1 here.

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Ethernet0 is connected to internet, ethernet1
is connected to gns3, and ethernet3 is connected

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to the laptop.

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If you forget, you can check it in the virtualbox,
here click on ubuntu, and then setting.

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In the network section, here we can see that
adapter 1 is nat, this is connected to internet,

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adapter2 is not attached, this is will be
connected to gns3, and then adapter3 is host

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only adapter, this is connected to our laptop.

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Okay done, let’s start all router and ubuntu
server, here we can click on this icon.

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Wait for a minute until all router and ubuntu
server is started.

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While waiting for all router and ubuntu server
started, let’s create a note for the ip address.

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Router 1, the ip address will be 10.10.10.1,
router 2 will be 10.10.10.2,

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router 3 will be 10.10.10.3, router 4 will be 10.10.10.4, and
last, router 5 will be 10.10.10.5

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Okay now let’s check on ubuntu server, login,
let’s check the ip address.

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Here we can see that the ip address of enp0s3
is 10.0.2.15, this ip address is automatic,

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because we configure dhcp client on enp0s3

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For enp0s8, the ip address is 10.10.10.254,
this is connected to gns3, and last, for enp0s9,

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the ip address is 192.168.56.2, this interface
is connected to our laptop.

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So the ip address in the ubuntu server is
correct.

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Now let’s configure ip address and ssh on
all router.

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Let’s show the interface label first, click
on this icon.

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Here we can see that all router connected
to the switch on fa0/0.

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Later, the configuration of all router will
be same, so we can write the template configuration

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on sublime.

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Let’s create new file, here we will write
the template to configure ip address and ssh

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on all router,

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Configure terminal

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Interface fa0/0, no shutdown, and then ip
address 10.10.10.1 255.255.255.0,

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this is will be for router 1.

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And then for ssh configuration

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Ip domain-name mydomain.local, crypto key
generate rsa and then enter,

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Here for the modulus is 1024.

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Next, we need to create username and password.

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Username cisco privilege 15 secret cisco.

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Last, let’s configure vty, line vty 0 15.

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Login local.

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Don’t forget to save the configuration.

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Do write.

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Okay this is the configuration template to
configure ip address and ssh on all router.

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Later for router 2, we just need to change
the ip address, the other configuration is same.

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Let’s copy this, go to router 1.

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And then paste the command here.

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Okay all configuration is success, except
in the modulus section.

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Let’s edit the template again,

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Here we have enter 2 time, let’s remove
this.

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Let’s just copy in the crypto key section,
back to router 1, paste,

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Here choose yes, and this is 1024.

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Okay done.

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Now we are done on router 1.

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Now let’s test to remote router 1 from ubuntu
server.

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But before that, let’s remote ubuntu server
from our laptop first.

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Ssh ubuntu@192.168.56.2, okay success, now
let’s try ping to router 1, ping 10.10.10.1,

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okay this is success.

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Now let’s try to remote router 1, ssh cisco@10.10.10.1,

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Okay we get an error here, this is because
yesterday we remote 10.10.10.1,

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but now we remote 10.10.10.1 again, but the router is
different.

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To solve this, we can just remove this file,
copy this, sudo rm and then paste it.

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Now let’s ssh to router 1 again, okay now
this is success.

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Now Let’s try ping to router 2, this is failed,
because we don’t configure anything yet

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on router 2.

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Now let’s configure router 2.

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In the sublime, let’s change the ip address
become 2.

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Copy, back to gns3, open router 2.

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And then paste the command here.

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Here we can see configure terminal, configure
the ip address, domain name, crypto key generate

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rsa 1024, create username, and configure vty.

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And last here we save the configuration.

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Okay so the configuration on router 2 is success.

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Let’s check it, ping to router 2 first, okay
success.

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Let’s try ssh to router 2.

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Okay this is also success.

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Okay I think enough for this video, for router 3,
4 and 5, you can try it by your self.

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You just need to edit the ip address and then
copy paste the command.

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In the next video, we are going to start learning
network automation using netmiko.

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Thank you for watching and see you on the
next video.