Lab 5


Name: _____________________________________

Ÿ 1. Build the following network in GNS3 as shown in the figure below. 


Ÿ 2. Using the tables below, configure the router and the interfaces as shown below.

Lab Equipment IP Address Information


Router   Name

Gi0/0 Address

Gi1/0 Address





IP Address

Subnet Mask








Ÿ 3. Verify that all hosts can ping each other. If you can’t ping troubleshoot the problem before continuing with the lab. The ability to ping is a prerequisite to continuing the lab.

Ÿ 4. Configure the access list based on the information show below.


Stop Traffic from PC 2


List Number

Permit or Deny

Source Address

Wildcard    Mask




On the R1 router, type the following to stop access from PC2.

R1(config)#access-list 1 deny

Ÿ 5. Can PC2 ping PC3? _________________________________ Why? ____________________________________________________

Ÿ 6. Apply the access to the interface gi0/0.

interface Gi 0/0

ip access-group 1 in

Ÿ 7. Can PC2 ping PC3? _________________________________ 

Ÿ 8. Can PC1 ping PC3? Why? ____________________________________________________

Ÿ 9. Add the following command to R1:

R1(config)#access-list 1 permit any 

Ÿ 7. Can PC2 ping PC3? _________________________________ 

Ÿ 8. Can PC1 ping PC3? _________________________________

Ÿ 9. Run the following command

R1#show access-lists 

Ÿ 10. Take a screenshot of the result and paste it here.

End of Procedure