> | Lab 2.2.3.2 Routers - Overview Estimated time: 20 min. Objectives: Analyze the routers in an existing lab setup and document the IOS configuration. Use the show running-config command at each router to determine attached IP Network numbers, Interfaces, IP addresses and subnet mask information for the Local Area Networks (LANS) and Wide Area Networks in use. Use the Control Panel / Network icon or winipcfg.exe utility at each workstation to determine IP address, subnet mask and default gateway settings. Use the Ping command to test the router and workstation connections. Use IOS commands to configure routers to the standard lab setup (optional). Background: This lab will help you develop an understanding of how the Cisco lab routers and workstations are configured for the Semester 2 topology (see diagram on previous page). You will use IOS commands to examine and document the IP network configurations of each router. You will also check the IP configuration of each workstation to ensure that there is full connectivity between all nodes in the lab setup. If the routers are not already configured you may (optionally) use the instructions at the end of the worksheet to configure each router. This will require additional time and probably some assistance from your instructor or a lab assistant since you will not have covered this material in the text, labs or online chapters yet. Tools / Preparation: Prior to starting this lab you will need to have the equipment for the standard 5-router lab available (routers, hubs, switches, cables, etc.). The routers should be pre-configured by the instructor or lab assistant with the correct IP interface settings etc. if possible. The workstations should also be pre-configured to have the correct IP address settings prior to starting the lab. The routers, hubs and workstations should be labeled. This lab assumes that you have completed the prior lab and that the lab equipment (routers, hub, workstations etc.) are assembled and connected in the standard lab topology. Work in teams of 3 or more. Before beginning this lab you may want to review Chapters 12 and 13 in the Cisco Networking Academy First-Year Companion Guide and Semester 2 On-line Chapter 2. The following resources will be required: 5 PC workstations (min.) with Windows operating system and HyperTerminal installed. 5 Cisco Routers (model 1600 series or 2500 series with IOS 11.2 or later). 4 Ethernet hubs (10BASE-T with 4 to 8 ports). One Ethernet switch (Cisco Catalyst 1900 or comparable). 5 serial console cables to connect workstation to router console port (with RJ45 to DB9 converters). 3 Sets of V.35 WAN serial cables (DTE male/ DCE female) to connect from router to router. CAT5 Ethernet Cables wired straight through to connect routers and workstations to hubs and switches. AUI (DB15) to RJ45 Ethernet transceivers (Quantity depends on the number of routers with AUI ports) to convert router AUI interfaces to 10BASE-T RJ45. Web Site Resources: Routing basics General information on routers 2500 series routers 1600 series routers Terms and acronyms IP routing protocol IOS command summary Notes: Step 1 - Verify That All Physical Connections are Correct. Review the standard semester 2 lab diagram in the overview section of this lab or the diagram you created in the prior lab and check all physical devices, cables and connections. Verify that the routers have been configured correctly (physically and internally) by the instructor or lab assistant. Step 2 - Examine and Document Router Configurations. (If the routers have not been configured, skip to step 5). A. Log on to the first router Lab-A. Verify that you have a good console connection from the workstation to the router and start the HyperTerminal program (Start/Programs/Accessories/Communications). Enter the password cisco if prompted to enter user mode. The prompt should be Lab-A> B. Enter Privileged Exec mode. Type enable at the router prompt. Enter the password of class if prompted. The prompt should now be Lab-A# C. Gather information about the router. Physically examine each router and make note of the interfaces (E0, S0 etc.) you see. Enter the Show Running-config command run) to gather information. The router will respond with the active configuration file currently in RAM. 1. Fill in the table below with IP interface information for each of the five routers.
> Router Name | Lab-A | Lab-B | Lab-C | Lab-D | Lab-E
> Model Number |  |  |  |  |
> Interface EO IP Address |  |  |  |  |
> Interface EO Subnet Mask |  |  |  |  |
> Interface E1 IP Address |  |  |  |  |
> Interface E1 Subnet Mask |  |  |  |  |
> Interface S0 Subnet Mask |  |  |  |  |
> Interface S0 Clock Rate |  |  |  |  |
> Interface S1 IP Address |  |  |  |  |
> Interface S1 Subnet Mask |  |  |  |  |
> Other Intfc(s) |  |  |  |  |
> 2. With the information gathered from the show running-config command at router Lab-A, answer the following questions: a. What is the routing protocol used? b. What are the networks that are directly connected to the interfaces? c. What is the clock rate of interface S0 on router Lab-A? d. What is the password for Telnet lines VTY 0 thru 4? Step 3 - Examine and document the workstation configurations. (If the workstations have not been configured, skip to step 6). A. Verify the workstation IP configuration. Click on Start/Settings and select Control Panel. Double-click on the Network icon. Select the TCP/IP protocol and click the Properties button. For each workstation, click the IP Address tab and record the current settings for IP address, Subnet mask in the table below. Click the Gateway tab and record the IP address of the default gateway in the table: (should be the IP address of the E0 router interface that the hub is connected to for each workstation). You may also use the winipcfg.exe utility at the DOS command prompt to verify settings at each workstation. 3. Fill in the IP configuration with information obtained from each workstation.
> Wkstn # | Wkstn. IP addr | Wkstn. Submet mask | Def. Gateway IP addr.
Step 4 - Test the router lab connectivity. A. Ping from router to router. Begin with router Lab-A and use the console workstation connection to it. Start the HyperTerminal program and ping the S1 interface of router Lab-B. This will verify that the WAN link between Lab-A and Lab-B is OK. Ping the serial interfaces of the other routers. Lab-A> ping 201.100.11.2 4. Was the ping from router Lab-A to Lab-B successful? B. Ping from workstation to router. Begin with a workstation connected to the first hub. Click Start/Programs/MS-DOS Prompt and ping the S1 interface of router Lab-B. This will verify that the workstation's IP configuration and the WAN link between Lab-A and Lab-B is OK. Ping the serial interfaces of the other routers. C:\WINDOWS> ping 201.100.11.2 5. Was the ping from router Lab-A to Lab-B successful? Step 5 - Configure the routers for the standard lab setup (optional). If the routers need to be configured, refer to the answers section 6 for the steps necessary. You will need to obtain assistance from your instructor or lab assistant. Step 6 - Configure the workstations for the standard lab setup (optional). If the workstations need to be configured, refer to the answers section 7 for the steps necessary. You will need to obtain assistance from your instructor or lab assistant. Step 7 – The OSI model and associated TCP/IP protocol stack layer. Task: Fill out the following charts based on your knowledge of the OSI model. Explanation: Your understanding of the OSI model will greatly increase your ability to absorb and categorize networking information as you learn it. 1. List the 7 layers of the OSI model from the top to the bottom. Give a mnemonic word for each layer that can help you remember it and then list the keywords and phrases that describe the characteristics and function of each.
Layer # | Name | Mnemonic | Key Words and Description of Function
7 |  |  |
6 |  |  |
5 |  |  |
4 |  |  |
3 |  |  |
2 |  |  |
1 |  |  |
2. List the 7 layers of the OSI model. Indicate the TCI/IP Protocol Stack layer that is associated with each OSI layer. List the encapsulation unit used to describe the data grouping at each layer.
Layer # | Name | Encapsulation Unit or Logical Grouping
7 |  |
6 |  |
5 |  |
4 |  |
3 |  |
2 |  |
1 |  |