- Identify the proper cables to connect the routers to form a WAN link. - Configure workstation IP address information. - This lab focuses on the ability to connect two simple LANs, each consisting of a workstation and a switch or hub, to form a basic router-to-router WAN. - In addition to the physical and data link connections, which are layers 1 and 2, the computers and routers must also be configured with the correct IP network settings, which is Layer 3, so that they can communicate. - Four Ethernet straight-through cables for connecting the workstations and routers to the hub or switch. - One female (DCE) and one male (DTE) V.35 cable for interconnecting the routers Step 1 Identify and connect the proper Ethernet cable from the PC to the switch. - Attach one end to the NIC and the other end to a port on the switch or hub.. - What is the model number of the switch or hub . - Step2 Identify the Ethernet or FastEthernet interfaces on the routers a. - Examine the routers.. - What is the model number of the Router A . - What is the model number of the Router B . - This identifier may vary depending on the type of router used. - These will require a 10Base-T transceiver to connect to the RJ45 cable.. - Identify the Ethernet ports that could be used for connecting the routers. - Step 3 Cable the router LAN links a. - The routers should be preconfigured by the instructor or lab assistant so that the Ethernet 0 interface on each router has the proper IP address and subnet mask as indicated in the table below. - This will allow the routers to route packets between local area networks and . - Router E0 Interface IP Address Subnet mask. - The connection between the router and the hub or switch will be accomplished using a CAT 5 straight-through patch cable. - Locate a patch cable that is long enough to reach from the router to the hub. - Connect the Ethernet interface that uses the 0 (zero) designation on the router to a port on the hub or switch. - Plug in and turn on the computers, switches/hubs and routers. - To verify the connections, insure that the link lights on the both PC NICs, both switch/hub interfaces and router Ethernet interfaces are lit. - Step 5 Identify the serial interfaces on the router a. - Identify the serial ports on each router that could be used for connecting the routers to simulate a WAN link. - Step 6 Identify and locate the proper V.35 cables. - Depending on the type of router and/or serial. - Since this will not be through a live lease line, one of the routers will need to provide the clocking for the circuit. - This is normally provided to each of the routers by a DCE device such as a CSU/DSU. - To provide this clocking signal, one of the routers will need a DCE cable instead of the normal DTE that is used on the other router. - A V.35 DCE cable and a V.35 DTE cable will be used to simulate the WAN connection.. - The V.35 DCE connector is a large female V.35 (34-pin) connector. - The DTE cable has a large male V.35 connector. - The cables are also labeled as DCE or DTE on the router end of the cable.. - Step 7 Cable the router WAN link a. - Router A should be preconfigured by the instructor or lab assistant to provide the DCE clock signal on the Serial 0 interface. - The Serial 0 interface on each router should have the proper IP address and subnet mast as indicated in the table below. - The network interconnecting the router serial interfaces is . - Router Clocking S0 Interface IP Address Subnet mask. - Router – A DCE . - Router – B DTE . - The DCE cable will attach to the Serial 0 interface on Router A. - The DTE cable should be attached to the Serial 0 interface on Router B. - First make the connection between the two V.35 cables. - Align the pins on the male cable with the sockets on the female cables and gently couple them. - Make the connection to each of the routers. - Holding the connector in one hand, properly orient the cable connector and the router connecter so that the tapers match. - Push the cable connector partially into the router connector and tighten the thumb screws to fully insert the cable into the connector.. - Note: Be sure to write down the existing IP settings so that they can be restored at the end of the lab. - Windows 95 / 98 / ME/ users should do the following:. - Click on the IP Address tab and the Gateway tab.. - Windows NT / 2000 users should do the following:. - Click on the Protocols tab and select the TCP/IP protocol icon that is associated with the NIC in this PC.. - Click on Properties and click on Specify an IP address.. - Windows XP users should do the following:. - 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 the Ethernet interface of the connected router. - Computer IP Address Subnet mask Default Gateway. - Windows 95 / 98 / Me users should do the following:. - Command Prompt Windows XP users should do the following:. - Ping the IP address of the computer on the other LAN using Enter the following command at the command prompt.. - This will test IP connectivity from one workstation through its switch and router across the WAN link and through the other router and switch to the other PC.
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