Lab 3.4.3 Part A: Configuring Inter-VLAN Routing

Step 1: Connect the equipment
a. Connect the Router A Fa0/0 interface with a straight-through cable to the Fa0/1 interface on Switch 1.
b. Connect the Switch 1 Fa0/2 port to the Switch 2 Fa0/1 switch port using a crossover cable.
c. Connect the Fa0/2 port of Switch 2 to the Fa0/2 port of Switch 3 using a crossover cable.
d. Use a straight-through cable to connect the Fa0/1 port of Switch 3 to the Fa0/1 interface of Router A Fa0/1 port.
e. Connect a PC with a console cable to perform configurations on the router and switches.
f. Connect the remaining PCs as shown in the diagram. Use switchport Fa0/5 on Switches 1, 2, and 3 to connect each PC to each switch. Use Fa0/9 to connect the server to Switch 3.
Step 2: Perform basic configurations on the router
a. Connect a PC to the console port of the router to perform configurations using a terminal emulation program.
b. Configure Router A with a hostname and console, Telnet, and privileged passwords according to the table and diagram.Step 3: Configure Fast Ethernet connections for each VLAN on the router
a. Configure Router A Fa0/0 interface to be on the same network as VLAN 12.
RouterA(config)#interface fa0/0
RouterA(config-if)#ip address 192.168.12.1 255.255.255.0
RouterA(config-if)#no shutdown
RouterA(config-if)#exit
b. Configure Router A Fa0/1 interface to be on the same network as VLAN 13.
RouterA(config)#interface fa0/1
RouterA(config-if)#ip address 192.168.13.1 255.255.255.0
RouterA(config-if)#no shutdown
RouterA(config-if)#exit
Step 4: Configure Switch 1
a. Configure Switch 1 with a hostname and console, Telnet and privileged passwords according to the table and diagram.
b. Configure Switch 1 with the VLAN 1 IP address of 192.168.12.2/24 and a default gateway of 192.168.12.1. Assigning an IP address to the switch allows for remote configuration.
Step 5: Configure Switch 2
a. Configure Switch 2 with a hostname and console, Telnet, and privileged passwords according to the table and diagram.
b. Configure Switch 2 with the VLAN 1 IP address of 192.168.12.3/24 and a default gateway of 192.168.12.1.
Step 6: Configure Switch 3
a. Configure Switch 3 with a hostname and console, Telnet, and privileged passwords according to the table and diagram.
b. Configure Switch 3 with the VLAN 1 IP address of 192.168.13.2/24 and a default gateway of 192.168.13.1.
Step 7: Configure Host 1
Configure Host 1 with an IP address of 192.168.12.4, subnet mask of 255.255.255.0, and a default gateway of 192.168.12.1.
Step 8: Configure Host 2
Configure Host 2 with an IP address of 192.168.12.5, subnet mask of 255.255.255.0, and a default gateway of 192.168.12.1.
Step 9: Configure Host 3
Configure Host 3 with an IP address of 192.168.12.6, subnet mask of 255.255.255.0, and a default gateway of 192.168.12.1.
Step 10: Configure the server
Configure the server with an IP address of 192.168.13.3, subnet mask of 255.255.255.0, and a default gateway of 192.168.13.1.

Step 11: Verify connectivity
The router should be able to ping the interfaces of the other devices.
a. From the router, issue a ping to Host 1.
Is the ping successful?
b. From the router, issue a ping to Host 2.
Is the ping successful?
c. From the router, issue a ping to Host 3.
Is the ping successful?
d. From the router, issue a ping to the server.
Is the ping successful?
Host 1 should be able to ping all other devices.
a. From Host 1, ping Host 2.
Is the ping successful?
b. From Host 1, ping the server.
Is the ping successful?
Why can Host 1 ping the server?
c. From the server, ping Host 1.
Is the ping successful?
If the pings are not successful, verify the connections and configurations again. Check to ensure that all cables are correct and that connections are seated. Check the router and switch configurations.
d. From Switch 3, issue the command show spanning-tree.
Which ports are being used on Switch 3?
What is the role of each of these ports?
Which switch is acting as the root?
What is the protocol that allows VLANs to communicate without switching loops?

Step 12: Reflection
a. Why does this topology not scale well?

b. Why would a VLAN benefit from trunking?

c. Which device provides connectivity between different VLANs?