Free CCNA | Configuring Interfaces | Day 9 Lab | CCNA 200-301 Complete Course
Summary
TLDRThis comprehensive video tutorial covers the step-by-step configuration of interfaces on a router and two switches within a single LAN network. The instructor meticulously guides viewers through configuring hostnames, IP addresses, speed and duplex settings, interface descriptions, disabling unused interfaces, and saving configurations across all devices. The hands-on approach, supplemented by clear explanations and visual demonstrations using Packet Tracer software, provides a practical learning experience ideal for CCNA candidates or those seeking to solidify their networking skills.
Takeaways
- đ„ This is a free video tutorial on configuring interfaces on a router and two switches for the CCNA 200-301 exam.
- đ§ The main steps covered are configuring hostnames, IP addresses, speed and duplex, interface descriptions, disabling unused interfaces, and saving configurations.
- đ The network setup is a single LAN with IP range 172.16.0.0/16 connected to the router's G0/0 interface.
- đ The configuration steps are demonstrated one device at a time, but can be done in any order.
- đ Key commands used include 'enable', 'configure terminal', 'hostname', 'interface', 'ip address', 'speed', 'duplex', 'description', 'no shutdown', 'shutdown', and various show commands.
- đŸ Different methods for saving the configuration are shown, including 'copy running-config startup-config', 'write memory', and 'write'.
- â ïž Packet Tracer, the simulator used, may not always behave exactly like real Cisco devices, as noted in the video.
- đ„ïž The script also covers configuring IP addresses on the PCs within the network.
- đ The video encourages viewers to subscribe, like, comment, and share the video to support the free tutorial series.
- đ° The option to leave tips for the creator is mentioned, including Brave Attention Tokens (BAT).
Q & A
What is the purpose of this lab?
-The purpose of this lab is to configure interfaces on a router (R1) and two switches (SW1 and SW2) to establish a single LAN network with IP subnet 172.16.0.0/16.
What are the main steps involved in configuring the devices?
-The main steps are: 1) Configure hostnames, 2) Configure IP addresses, 3) Configure speed and duplex, 4) Configure interface descriptions, 5) Disable unused interfaces, and 6) Save the configurations.
How is the IP address configured on R1's G0/0 interface?
-The IP address 172.16.255.254/16 is configured on R1's G0/0 interface, which acts as the gateway for the LAN network.
Why is the speed and duplex manually configured on R1's G0/0 interface?
-The speed and duplex are manually configured on R1's G0/0 interface because it is connected to another networking device (SW1), and manual configuration is recommended for optimal performance.
How are the PCs configured in this lab?
-The PCs (PC1, PC2, PC3, and PC4) are configured with IP addresses 172.16.0.1, 172.16.0.2, 172.16.0.3, and 172.16.0.4 respectively, all within the 172.16.0.0/16 subnet. Their gateway is set to R1's address (172.16.255.254).
What is the purpose of configuring interface descriptions?
-Interface descriptions are configured to provide a brief explanation of the connection or purpose of each interface, making it easier to understand and manage the network configuration.
Why are unused interfaces disabled on the switches?
-Unused interfaces on the switches are disabled (shut down) for security reasons and to prevent unauthorized access or potential issues from those unused ports.
What methods are used to save the configurations on the devices?
-Three different methods are used to save the configurations: 1) On R1, the 'copy running-config startup-config' command is used, 2) On SW1, the 'write memory' command is used, and 3) On SW2, the 'write' command is used.
What is the purpose of using the 'do' command in the lab?
-The 'do' command is used to temporarily execute a privileged EXEC mode command from a lower mode, such as when executing the 'show ip interface brief' command from the interface configuration mode.
What is the issue mentioned regarding the speed and duplex settings on Packet Tracer?
-The issue mentioned is that on Packet Tracer, when speed and duplex are manually configured, the interface status shows 'a-1000' and 'a-full' (indicating auto-negotiated settings), which is incorrect and does not match the behavior of a real Cisco device, where it should display the manually configured settings without the 'a-' prefix.
Outlines
đ„ïž Configuring a Router and Switches in Jeremy's IT Lab
This paragraph serves as an introduction to a free CCNA 200-301 course video. It provides an overview of the lab, which involves configuring interfaces on a router (R1) and two switches (SW1 and SW2) in a single LAN (172.16.0.0/16). The lab covers six main steps: configuring hostnames, IP addresses, speed and duplex, interface descriptions, disabling unused interfaces, and saving configurations. The paragraph outlines that the configurations will be demonstrated one device at a time, starting with R1.
âïž Configuring R1, SW1, and PCs
This paragraph delves into the configuration process for R1, SW1, and the PCs in the lab environment. It begins by configuring the hostname, IP address, speed, duplex, and description on R1's G0/0 interface connected to SW1. It then configures descriptions for unused interfaces on R1 and saves the running configuration to the startup configuration. The paragraph then moves on to configure IP addresses for PC1, PC2, PC3, and PC4. Next, it configures SW1's hostname, interface settings (speed, duplex, descriptions), and disables unused interfaces. Finally, it saves SW1's configuration using the 'write memory' command.
đ§ Configuring SW2 and Wrapping Up
This final paragraph focuses on configuring SW2 in the lab environment. It begins by setting the hostname for SW2 and checking the interface status. It then proceeds to configure SW2's G0/1 interface (connected to SW1) with speed, duplex, and description settings. The paragraph also configures descriptions for interfaces connected to end hosts and disables unused interfaces on SW2. After verifying the configuration changes, it saves SW2's configuration using the 'write' command. The paragraph concludes by thanking the viewers, encouraging them to subscribe, like, comment, and share the video, and providing information about tipping options.
Mindmap
Keywords
đĄInterface
đĄIP Address
đĄSubnet Mask
đĄSpeed
đĄDuplex
đĄDescription
đĄHostname
đĄConfiguration
đĄRunning Configuration
đĄStartup Configuration
Highlights
This is a free, complete course for the CCNA 200-301.
In this lab we'll configure interfaces on a router and two switches.
There are six main steps in this lab: 1, configure hostnames. 2, configure IP addresses. 3, configure speed and duplex. 4, configure interface descriptions. 5, disable unused interfaces. And 6, save the configurations.
The first step is to configure the hostname of R1 using the 'hostname' command.
Configuring the IP address on R1's G0/0 interface using the 'ip address' command.
Configuring the speed and duplex on R1's G0/0 interface using the 'speed' and 'duplex' commands.
Configuring a description on R1's G0/0 interface using the 'description' command.
Enabling R1's G0/0 interface using the 'no shutdown' command.
Configuring descriptions on R1's other interfaces to indicate they are not in use using the 'interface range' and 'description' commands.
Saving R1's running configuration to the startup configuration using the 'copy running-config startup-config' command.
Configuring IP addresses on PCs using the 'ip address' command.
Configuring the hostname of SW1 using the 'hostname' command.
Configuring speed, duplex, and description on SW1's G0/1 and G0/2 interfaces using the 'speed', 'duplex', and 'description' commands.
Configuring descriptions on SW1's FastEthernet interfaces using the 'interface range' and 'description' commands.
Disabling and configuring descriptions on SW1's unused interfaces using the 'interface range', 'description', and 'shutdown' commands.
Saving SW1's configuration using the 'write memory' command.
Configuring the hostname of SW2 using the 'hostname' command.
Configuring speed, duplex, and description on SW2's G0/1 interface using the 'speed', 'duplex', and 'description' commands.
Configuring descriptions on SW2's FastEthernet interfaces using the 'interface range' and 'description' commands.
Disabling and configuring descriptions on SW2's unused interfaces using the 'interface range', 'description', and 'shutdown' commands.
Saving SW2's configuration using the 'write' command.
Transcripts
Welcome to Jeremyâs IT Lab.
This is a free, complete course for the CCNA 200-301.
If you like these videos, please subscribe to follow along with the series.
Also, please like and leave a comment, and share the video to help spread this free series
of videos.
Thanks for your help.
In this lab weâll configure interfaces on a router and two switches.
This is a single LAN, 172.16.0.0/16, connected to R1âs G0/0 interface.
In the real world, R1 would then connect to other LANs or perhaps the Internet, but weâll
just configure this small LAN for now.
Letâs get started.
So, there are six main steps in this lab. 1, configure hostnames.
2, configure IP addresses.
3, configure speed and duplex.
4, configure interface descriptions.
5, disable unused interfaces.
And 6, save the configurations.
Instead of going through each step one by one, Iâll go through the steps one device
at a time, but you can do it in any order you like.
So, letâs go on R1 first. The first step is to configure the hostname.
As you can see, it currently has the default hostname of ârouterâ as indicated by the
prompt here.
Letâs change it to R1.
Use âenableâ to enter privileged exec mode, then âconfigure terminalâ to enter
global config mode.
From here simply type hostname R1, and you can see the prompt has changed to indicate
the new hostname.
Now letâs configure the IP address on its G0/0 interface.
Type âinterface g0/0â to enter interface config mode for the interface.
Actually, before doing the configuration, letâs confirm the current status of the
interface.
Do show ip interface brief.
Remember, âdoâ letâs me use the show command even though Iâm not in privileged
exec mode.
Hereâs the gigabitethernet0/0 interface, the IP address is unassigned, so the method
is unset, and the status is administratively down because thatâs the default setting
for router interfaces.
Letâs configure it and then check again after.
So, letâs configure the IP address.
IP ADDRESS 172.16.255.254, and because the prefix length is /16, the subnet mask will
be 255.255.0.0.
Okay, now because this interface is connected to another networking device, SW1, Iâll
manually configure the speed and duplex.
SPEED 1000, meaning 1000 megabits per second because this is a gigabitethernet interface.
Then, duplex full.
Devices attached to switches can use full duplex, thereâs no reason to use half-duplex
like a device attached to a hub.
Next letâs configure a description.
Iâll indicate that this device (interface) is connected to SW1.
So, description ## to SW1 ##. Now, the last step is to disable interfaces which are not connected
to other devices.
Because router interfaces are shutdown by default, we donât have to do that, however
we do have to do the opposite for this interface which is connected to another device, so
no shutdown.
There we go, now the interface is enabled and letâs check out the status.
Do show ip interface brief.
Okay, you can see the IP address we configured, the method is manual, the status is up, but
the protocol is down.
Although on a real Cisco device I think this should be UP/UP, on packet tracer its down
because I manually configured the speed and duplex on this interface without doing so
on SW1âs interface, but weâll fix that soon.
Thatâs a downside of using a simulator like packet tracer, sometimes things donât behave
like they should on a real device.
Before moving on to SW1, Iâll configure descriptions on R1âs other interfaces to
indicate that they are not in use.
Iâll use the interface range command.
Interface range g0/1 â 2.
DESCRIPTION ## not in use ##. Okay, letâs check our config.
Do show run.
Hereâs the running config of the device, and here are the configurations of the interface,
including speed, duplex, ip addresses, and descriptions.
Okay, since Iâm done configuring, Iâll use END to return to privileged exec mode.
Now letâs save the running configuration.
There are three Cisco devices in this lab, Iâll use a different method to save the
configuration on each device to show you each one.
Here on R1, Iâll use copy running-config startup-config, and hit enter to confirm.
Now letâs check if it was saved to the startup-config.
Show startup-configâŠ.here are the interfaces, and you can see the configuration changes
we made.
Okay, thatâs all for R1.
Before moving on to SW1, Iâll make the only configuration change we need to make on the
PCs, configuring their IP addresses.
Letâs go on PC1âŠ.Click on config.
And notice I pre-configured the gateway, which is R1âs address, because its the router
for the network.
Now, click on Fastethernet0, which is PC1âs network interface.
PC1âs IP address is 172.16.0.1.
I hit TAB, and it automatically fills in the appropriate subnet mask 255.255.0.0.
Okay, now I can exit out.
Next is PC2. Click config.
Fastethernet0.
IP address 172.16.0.2, hit tab and it fills in the subnet mask.
Next is PC3...config.
Fastethernet0.
IP address of 172.16.0.3, hit tab to fill in the subnet mask, and exit.
Finally, PC4âŠ.config.
Fastethernet0.
IP address of 172.16.0.4, hit tab to fill in the subnet mask, and exit.
Okay, now letâs configure SW1âŠ.enable.
Conf t.
First, the hostname.
Hostname SW1.
Now letâs check out the interfaces.
Do show interfaces status.
This is a command that works on switches, but not routers, by the way.
As you can see, all default settings.
No descriptions.
The statuses are connected or not connect, not DISABLED because these are switch interfaces,
they are not shutdown by default.
The speed and duplex are auto and auto as well.
Okay, letâs configure the G0/1 interface.
Interface g0/1.
Speed 1000.
DUPLEX full.
Itâs connected to R1, so DESCRIPTION ## to R1 ##. Thats it!
Now G0/2.
Interface G0/2.
Speed 1000.
DUPLEX full.
Itâs connected to SW2, so DESCRIPTION ## to SW2 ##. Now, as for fastethernet0/1 and 0/2,
they are connected to end hosts so according to the lab instructions I donât need to
configure the speed and duplex.
So, Iâll just configure descriptions.
Interface range f0/1 â 2.
DESCRIPTION ## to end hosts ##. Now, as for the rest of the interfaces, Iâll configure
descriptions and shut them down.
There are 22 unused fastethernet interfaces, so interface range f0/3 â 24.
DESCRIPTION ## not in use ##. shutdown.
Okay, letâs configure the configurations.
Do show interface status.
Okay, you can see the interfaces we disabled.
Again, because I configured the duplex manually on G0/2 it's down at the moment, but will come up when
we configure SW2.
Notice the speed and duplex we manually configured.
This is also a problem with packet tracer.
It says a-1000 and a-full, meaning it autonegotiated the speed of 1000 and duplex of full, which
is incorrect because we manually configured it.
On a real Cisco device, this will say simply 1000 and full, without the A. Anyway, Iâll
type END to return to privileged exec mode.
Now letâs save the configuration.
This time, Iâll use WRITE MEMORY.
Okay, letâs check the startup-config.
Show startup-config.
Okay, you can see the changes we made to the interfaces here.
Letâs go on to the last device, SW2âŠ.enable.
Conf t.
hostname SW2.
Letâs check the interfaces.
Do show interfaces status.
As you can see, all the defaults again.
Now the configurations we will make are the same as for SW1, except SW2 has only one active
gigabitethernet interface, G0/1.
So, Iâll run through the configurations.
Interface g0/1.
Speed 1000.
duplex full.
DESCRIPTION ## to SW1 ##. interface range f0/1 â 2.
description ## to end hosts ##. Now, letâs shut down the other interfaces all at once.
Interface range g0/2, f0/3 â 24.
description ## not in use ##. shutdown.
Now letâs check.
Do show interfaces status.
Once again, notice the speed of a-1000 and duplex of a-full.
On a real Cisco device, this will be 1000 and full, without the A, because these settings
were manually configured, not autonegotiated.
Finally, letâs save the configurations.
END.
This time, Iâll just use âWRITEâ to save the configuration.
Now letâs check.
Show startup-config.
Looks like our configuration changes were applied.
Thatâs all for this lab.
Thank you for watching.
Please subscribe to the channel, like the video, leave a comment, and share the video
with anyone else studying for the CCNA.
If you want to leave a tip, check the links in the description.
I'm also a Brave verified publisher and accept BAT, or Basic Attention Token, tips via the
Brave browser.
That's all for now.
Weitere Àhnliche Videos ansehen
Configuracion Basica de Router y Switch en Cisco Packet Tracer 2020
Cara Konfigurasi VoIP Pada Cisco Packet Tracer Terbaru || Command Line Interface CLI
Free CCNA | Basic Device Security | Day 4 Lab | CCNA 200-301 Complete Course
Free CCNA | The Life of a Packet | Day 12 | CCNA 200-301 Complete Course
CCNA1-ITNv7 - Module 02 - Basic Switch and End Device Configuration config
Enrutamiento estatico (3 router) Packet Tracer
5.0 / 5 (0 votes)