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Free CCNA | Configuring Interfaces | Day 9 Lab | CCNA 200-301 Complete Course

2 min read 3 months ago

Published on Nov 25, 2025 This response is partially generated with the help of AI. It may contain inaccuracies.

Table of Contents

Introduction

In this tutorial, we will walk through the process of configuring interfaces on Cisco devices, focusing on setting IPv4 addresses, speed, duplex, and descriptions. This guide is based on the CCNA 200-301 course material and is designed to give you hands-on experience with Cisco devices.

Step 1: Configure R1

Access the router's command line interface.
Enter global configuration mode by typing:
```
configure terminal
```
Select the interface you want to configure (e.g., GigabitEthernet0/0):
```
interface GigabitEthernet0/0
```

Assign an IPv4 address and subnet mask:

ip address [IPv4 address] [subnet mask]

Set the interface to "up":
```
no shutdown
```
Optionally, add a description for the interface:
```
description [description text]
```
Exit the interface configuration mode:
```
exit
```

Step 2: Configure PCs

For each PC (PC1, PC2, PC3, PC4), access the configuration settings.
Set the IPv4 address and subnet mask corresponding to the configured router interface.
Ensure that the default gateway is set to the router's IP address.

Step 3: Configure SW1

Access SW1's command line interface.
Enter global configuration mode:
```
configure terminal
```
Select the interface to configure (e.g., FastEthernet0/1):
```
interface FastEthernet0/1
```

Assign an IPv4 address:

ip address [IPv4 address] [subnet mask]

Set the speed and duplex settings:
```
speed [value]
duplex [full | half]
```
Bring the interface up:
```
no shutdown
```
Optionally, add a description for the interface:
```
description [description text]
```

Step 4: Configure SW2

Access SW2's command line interface.
Enter global configuration mode:
```
configure terminal
```
Select the interface to configure (e.g., FastEthernet0/2):
```
interface FastEthernet0/2
```

Assign an IPv4 address:

ip address [IPv4 address] [subnet mask]

Set the speed and duplex settings:
```
speed [value]
duplex [full | half]
```
Bring the interface up:
```
no shutdown
```
Optionally, add a description for the interface:
```
description [description text]
```

Conclusion

In this tutorial, we configured interfaces on routers and switches, assigned IPv4 addresses, and set interface properties like speed and duplex. Make sure to test connectivity between devices after configuration. As a next step, consider exploring further topics in the CCNA course or practicing with simulation tools like Packet Tracer to enhance your networking skills.

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