Lab 001 IPv4 Addressing and Subnetting Configuration with Two Switches

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Lab Objective:

This lab focuses on configuring and verifying IPv4 addressing and subnetting in a network setup consisting of one router, two switches, and two PCs. Specifically, I will guide you through the basic steps of IPv4 address configuration and subnetting on a Cisco Router 4300 device.

To enable communication, each router interface that connects to a network must be assigned an IPv4 or IPv6 address. Furthermore, it is crucial that every IP address on the router belongs to a different subnet, ensuring proper network segmentation and routing.

On the other hand, each PC connected to a switch will operate within its own subnet. The default gateway for each PC will be configured as the IP address of the corresponding router interface, facilitating communication between devices across the network.

By the end of this lab, you will have a solid understanding of how to configure IPv4 addresses and subnetting to establish seamless connectivity within this network environment.

Lab Topology:

Equipment Required:

• Cisco Router
• 2x Cisco Switches (2960)
• 2x PCs with ethernet interface
• Console Cable
• Ethernet Cable
• Computer with Terminal emulation software e.g. PuTTY

IPv4 Address Table:

Device Name	Interface ID	IPv4 Address	Subnet Mask
Router_Gateway	Gig0/0/0	192.168.0.1	255.255.255.0
Router_Gateway	Gig0/0/0	192.168.1.1	255.255.255.0
PC1	Fa0	192.168.1.100	255.255.255.0
PC0	Fa0	192.168.0.100	255.255.255.0

List of Command Summary:

Command	Command Description
enable	enters privileged EXEC mode
configure terminal	enters global configuration mode from privileged EXEC mode
hostname [hostname]	Assign a device name to router
interface [type number]	Change from global configuration mode to interface configuration mode
ip address [ipv4-address] [subnetmask]	assign an IPv4 address to an interface
no shutdown	enables an interface
interface range [type number]-[type number]	This is used to enter interface configuration mode for a range of Ethernet interfaces
switch mode access	set the operational mode of an interface to access mode
switch access vlan [vlan-ID]	assigns a specific VLAN to an access port
ping [ipv4-address]	Sends an ICMP (Internet Control Message Protocol) echo request to the specified address
show running-config	save the running configuration to the startup-configuration file
show ip interface brief	display a summary of all IPv4 addresses configured on the Router’s interfaces
show vlan brief	displays a brief summary of the VLAN configuration on the switch including the VLAN ID, VLAN name, and port membership
end	exit configuration mode
exit	exits one level in the menu structure command
clear arp	deletes all entries from the ARP table

Lab Task:

1. Configure Router with a hostname of “Router_Gateway”. Enable both interfaces Gig0/0/0 and Gig0/0/1
2. Configure each interface with the appropriate IPv4 address mentioned above
3. Configure PC1 and PC0 with the appropriate IPv4 address mentioned above
4. Verify your configuration by using “show ip interface brief”, “show running-configuration” and “ping” commands. The ping should be successful
5. Save Configuration

Configuration Steps:

1. Physical Connection:
   1. Connect your computer to the console port of the router using the console cable. Connect Switch 1 to one Ethernet interface on the router using an Ethernet cable. Connect PC1 to Switch 1 using an Ethernet cable.
2. Terminal Access:
   1. Open a terminal emulation program (e.g., PuTTY) on your computer.
   1. Configure the terminal emulator to connect to the console port of the router using the appropriate COM port and baud rate settings.
3. Router Configuration:
   1. Access the router’s console through the terminal emulator. Enter privileged EXEC mode by typing enable and providing the enable password if prompted. Enter global configuration mode by typing configure terminal. Configure IP addresses on each router interface connected to the switches:
      1. interface GigabitEthernet0/0/0ip address 192.168.0.1 255.255.255.0no shutdown interface GigabitEthernet0/0/1ip address 192.168.1.1 255.255.255.0no shutdown
   1. Exit configuration mode by typing end.
4. PC Configuration:
   • Configure PC1’s network settings to use the following IPv4 address: 192.168.1.100, subnet mask 255.255.255.0, default gateway 192.168.1.1.
   • Similarly, configure PC0’s network settings to use IP address 192.168.0.100, subnet mask 255.255.255.0, default gateway 192.168.0.1.
5. Verification:
   • Verify the configured IP addresses and interfaces on the router, switches, and PCs using appropriate show or network configuration commands.
   • Test connectivity between PC1, PC2, and the router by pinging each other’s IP addresses.
6. Subnetting (Optional):
   • Practice subnetting by dividing the provided IP address ranges into smaller subnets and assigning IP addresses to hosts within each subnet. Configure additional IP addresses and subnets on the router, switches, and PCs interfaces accordingly.

Don’t forget to save the running configuration on the device.

Conclusion:

In this lab, you have successfully configured and verified IPv4 addressing and subnetting on a network with one router, two switches, and two PCs. You have learned how to assign IP addresses to router, switch, and PC interfaces, verify connectivity, and practice subnetting to create smaller subnets within a network range.

Packet Tracer Lab (Pre/Post configuration):

Download the file below and open the word document to access the Packet Tracer labs.