CCNA 1. Networking Basics v3.1.1 Student Lab Manual (796248), страница 17
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First make the connection between the two V.35 cables. Thereis only one proper way for the cables to fit together. Align the pins on the male cable with the socketson the female cables and gently couple them. When they are joined, turn the thumbscrews clockwise to secure the connectors.Make the connection to each of the routers. Holding the connector in one hand, properly orient thecable connector and the router connecter so that the tapers match.
Push the cable connectorpartially into the router connector and tighten the thumb screws to fully insert the cable into theconnector.Step 8 Configure Workstation IP settingsNote: Be sure to write down the existing IP settings so that they can be restored at the endof the lab. These include IP address, subnet mask, default gateway, and DNS servers. If theworkstation is a DHCP client, it is not necessary to record this information.Access the IP Settings window.Windows 95 / 98 / ME/ users should do the following:•Click on Start > Settings > Control Panel and then click the Network icon.•Select the TCP/IP protocol icon that is associated with the NIC in this PC and click onProperties.•Click on the IP Address tab and the Gateway tab.Windows NT / 2000 users should do the following:•Click on Start > Settings > Control Panel and then open the Network and Dial-upConnections folder.•Click and open the Local Area Connection icon.•Select the TCP/IP protocol icon that is associated with the NIC in this PC.•Click on Properties and click on Use the following IP address.Windows XP users should do the following:5-7•Click on Start > Settings > Control Panel and then click the Network Connection icon.•Select the Local Area Network Connection and click on Change settings of this connection.•Select the TCP/IP protocol icon that is associated with the NIC in this PC.•Click on Properties and click on Use the following IP address.CCNA 1: Networking Basics v 3.1 - Lab 5.2.3bCopyright 2003, Cisco Systems, Inc.See the example below.Set the IP address information for each PC according to the information in the table.Note that the IP address of each PC is on the same network as the default gateway, which is theEthernet interface of the connected router.
The default gateway is required on local area networksthat are connected to a router.ComputerIP AddressSubnet maskDefault GatewayPC – A192.168.1.2255.255.255.0192.168.1.1PC – B192.168.2.2255.255.255.0192.168.2.1Step 9 Verify that PCs can communicate across the WANa. Access the Command Prompt (MS-DOS-like):Windows 95 / 98 / Me users should do the following:Start > Programs > MS-DOS PromptWindows NT / 2000 users should do the following:Start > Programs > Accessories > Command PromptWindows XP users should do the following:6-7CCNA 1: Networking Basics v 3.1 - Lab 5.2.3bCopyright 2003, Cisco Systems, Inc.Start > Programs > Accessories > Command Promptb.
Test connectivityPing the IP address of the computer on the other LAN. Enter the following command at thecommand prompt on PC-B.C:>ping 192.168.1.2Enter the following command at the command prompt on PC-A.C:>ping 192.168.2.2This will test IP connectivity from one workstation through its switch and router across the WAN linkand through the other router and switch to the other PC.c.Look for results similar to those shown below. If not, check the PC connections and TCP/IPsettings for both PCs.
What was the ping result?_____________________________________________________________________________Step 10 Restore the PCs to their original IP settings, disconnect the equipment, and storethe cables7-7CCNA 1: Networking Basics v 3.1 - Lab 5.2.3bCopyright 2003, Cisco Systems, Inc.Lab 5.2.3c Troubleshooting Interconnected DevicesObjective•Create a simple routed wide-area network (WAN) with two PCs, two switches or hubs, and tworouters•Configure workstation IP address information•Identify and correct networking problems related to cabling issues•Identify and correct networking problems workstation IP addressing issuesBackground / PreparationThis lab focuses on configuring a basic router-to-router WAN and then troubleshooting Layer 1cabling problems and workstation Layer 3 IP addressing problems.Note: The two routers need to be preconfigured by the instructor or lab assistant to have thecorrect IP addresses on their LAN and WAN interfaces.
Router A will provide the clockingsignal as DCE.Use the prior lab “Basic Routed WAN” to set up this lab prior to starting the troubleshooting. As theconfiguration shown is being set up, problems with cabling and workstation IP addressing should beintroduced into the setup of the network. By working in teams of two, one person can set up the1-3CCNA 1: Networking Basics v 3.1 - Lab 5.2.3cCopyright 2003, Cisco Systems, Inc.configuration and introduce some errors, and the other person can troubleshoot the setup todetermine the problems.The equipment needed in this lab is the following:•Two Ethernet 10BASE-T or Fast Ethernet switches or two hubs•Two routers with an RJ-45 Ethernet or Fast Ethernet interface (or an AUI interface) and at leastone serial interface.•10BASE-T AUI transceiver (DB-15 to RJ-45) for a router with an AUI Ethernet interface, which isa 2500 Series•Several straight-through, crossover, and improperly wired or bad cables for connecting theworkstations and routers to the hub or switch•One female (DCE) and one male (DTE) V.35 cable for interconnecting the routersStep 1 Set up the lab configuration for Team member A by doing the following:a.
Set up the lab according to prior lab “Building a Basic Routed WAN”.b. As the components are being connected, use a variety of Category 5 cables including at leastone crossover cable and a cable that is improperly wired.c.When configuring the workstations, introduce at least one misconfiguration of IP addressinformation per PC.d. Record the problems introduced in the table below. Space is provided for up to three cablingproblems and three IP problems. If it is a cabling problem, indicate the location of the problem,such as PC-A to Switch-A. If it is an IP related problem, indicate which PC the problem is with.
Inthe third column, describe the problem introduced, such as crossover cable used, wrong IPaddress or wrong default gateway.Type of problemLocation of problemProblem introducedCabling relatedCabling relatedCabling relatedIP relatedIP relatedIP relatedStep 2 Troubleshoot the lab configuration for Team member Ba.
Check workstation to workstation connectivity.Ping from the command prompt on workstation A to the IP address of workstation B. If problemshave been introduced, the ping attempt should fail.b. Check physical layer integrity.Start with Layer 1 issues and check the cabling between the PCs and the switch. Check for theproper type of cable as well as good connections. Check the cabling between the routers andthe switches for connections. Replace cables and insure good connections as necessary.c.2-3Check network layer integrity.CCNA 1: Networking Basics v 3.1 - Lab 5.2.3cCopyright 2003, Cisco Systems, Inc.Check for Layer 3 configuration problems with the workstations.
Note that the router should bepreconfigured and should not have the problems that are introduced. Use the command promptand the command winipcfg (Windows 95/98/ME) or ipconfig (Windows NT/2000) to checkthe IP configuration of each workstation. Control panel network application may also be used tocheck IP settings. Verify the IP address subnet mask and default gateway for each workstation.Step 3 Record problems found in the table below.
This should be done by Team member B.Type of problemLocation of problemCorrective Action TakenCabling relatedCabling relatedCabling relatedIP relatedIP relatedIP relatedStep 4 Team members A and B switch roles and repeat the labStep 5 Restore the PCs to their original IP settings, disconnect the equipment, and store thecables3-3CCNA 1: Networking Basics v 3.1 - Lab 5.2.3cCopyright 2003, Cisco Systems, Inc.Lab 5.2.7 Establishing a Console Connection to a Router or SwitchObjective•Create a console connection from a PC to a router and switch using the proper cable•Configure HyperTerminal on the PC•Observe the router and switch user interfaceBackground / PreparationThis lab will focus on the ability to connect a PC to a router or a switch in order to establish a consolesession and observe the user interface.
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