| Lab 9.2.4.2 ARP challenge Estimated time: 30 min. Objectives: Practice working with ARP tables Background: You and your group have been assigned to help a system administrator of a network for XYZ company. The system administrator of this network would like to know the MAC addresses of each of the Ethernet interfaces on the routers. 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. 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. Work in teams of 3 or more. Before beginning this lab you should review Semester 2 On-line Chapter 9. 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 - Find MAC address for all Ethernet interfaces. Verify that the routers and workstations are setup according to the standard 5-router lab diagram. When you are done with this, view the ARP tables and find out the MAC address of all surrounding routers. Be sure to record the ARP tables of the other group's routers. This will allow you to construct a diagram of all the routers and their IP's with MAC addresses. You might want to write down a quick step by step example of how you found the MAC address to one of the routers. 1. List the following MAC address for the routers: LAB-A E0 LAB-A E1 LAB-B E0 LAB-C E0 LAB-D E0 LAB-E E0 Step 2 - Generate network traffic. From the workstations ping another workstation on a different router. Then from the router issue the show arp command from a privileged prompt. 2. List the MAC address for the workstations that are connected to the router.