Cisco Lab 2

CDF252 - OL Lab#2

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CDF-252 Lab 2 - submission

Description: This Lab explores the Cisco IOS and its hierarchal design by configuring Gateway interfaces that face the LAN.

Rational: The student entering the network or forensics field should understand the steps required to configure a Cisco router interface.

Lab Instructions

Step Description

1 Configure BaltPC1 with all of the IP information in the block next to the PC.

2 Configure NYPC1 with all of the IP information in the block next to the PC.

3 Go to the command prompt of BaltPC1 and ping the gateway address for that network. Answer Question 1

4 Move the cursor over the Balt router and a table should appear. This table shows the interfaces, (LAN and WAN) connections available, their status, IP addresses if configured and the MAC addresses. Click on the router and navigate to the CLI tab and view the router prompt.

Answer question 2

*Note: We will now drill down through the modes or privilege levels in order to get to the area where the IP address for the Gateway is configured. Follow along in your text on table 5-1 (page 124).

5 Type enable or use the short cut en and press enter key then type configure terminal or the shortcut config t and press enter key, then type interface fastethernet 0/0 or use the shortcut int fa0/0 and press enter key. At this point you should see the (config-if)# prompt. Answer Question 3.

6 At the (config-if)# prompt using the information in step 1 identify the IP address that all of the PC’s on the Balt network use for a gateway then type

Ip address <ip address><space> <subnet mask> and press the enter key. The (config-if)# prompt should appear without an error.

*Note: All router interfaces are turned off by default so you must turn them on.

7 At the (config-if)# prompt type no shutdown or use the shortcut no shut. This turns the interface on and the following appears at the prompt:

%LINK-5-CHANGED: Interface FastEthernet0/0, changed state to up

%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to up

This is telling the person putting in the commands that layer 2 and layer 3 are now working on the interface.

Exit out of the interface configuration mode and the Global Configuration mode by typing exit and press enter key twice . (two exits).

Now save the running configuration to Startup configuration by typing

Copy run start and press the enter key.

8 Go to the command prompt of BaltPC1 and ping the gateway address .

Answer Question 4.

9 Go to the NY router and preform steps 4 through 7 but skip the questions for now but don’t forget to save the running configuration to startup configuration.

10 Go to the command prompt of NYPC1 and ping the gateway address for that network. Answer Question 5.

11 From the command prompt of NYPC1 ping BaltPC1 by name. Answer Question 6.

Lab Questions

1. Were you successful? You should not be able to ping the gateway because the address has not been configured on the router interface.

2. What prompt do you see? It should be balt>

3. How many privilege levels or modes have you just traversed? Can you name them?

User - Privileged Exec Configuration interface

Note: The Cisco IOS or operating system privileges can be configured so that a user is not only restricted in the privilege level or mode but also the commands with in that mode can be restricted as well.

4. Can you ping the gateway of the Balt LAN? If yes then the interface that faces the LAN and is responsible for all communications going into and out of the LAN is configured correctly.

5. Can you ping the gateway of the NY LAN? If yes then the interface that faces the LAN and is responsible for all communications going into and out of the LAN is configured correctly.

6. Was the ping successful? If so you have completed Lab#2 successfully. If not go to the Assessment area and see what you are missing, correct and repeat until the Lab is 100% complete.