| Lab 10.4.1 Topology challenge lab Estimated time: 30 min. Objectives: Design an IP addressing scheme based on a given network topology Use multiple Class C network addresses for LANs and WANs Assign IP addresses to router interfaces Diagram the network using ConfigMaker Background: You and your group members have just received your Cisco certification. Your first job is to work with other group members in designing a topology and IP addressing scheme. It will be a 5-router topology similar to the standard 5-router lab diagram as shown but with a few changes. Refer to the modified 5-router lab diagram shown in the worksheet. You must come up with a proper IP addressing scheme using multiple Class C addresses which are different from those of the standard lab setup. You will then use ConfigMaker to do your own diagram of the network. You may do this lab using the worksheets or work with the actual lab equipment if it is available. Tools / Preparation: Prior to starting this lab you should have the equipment for the standard 5-router lab available (routers, hubs, switches, cables, etc.). Since this is a challenge lab, the routers may or may not be configured with IP interface settings etc. If they are, you will need to change the IP addresses to be different from those of the standard lab setup. The IP address configuration of the workstations will also need to be changed. If the actual lab equipment is not available to configure, design the network using the worksheets provided in this lab. Work in teams of 5 or more. 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). 4 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. Cisco ConfigMaker software (version 2.3 or later) See below for web site. Websites Sites Required: Routing basics General information on routers 2500 series routers 1600 series routers Terms and acronyms IP routing protocol IOS command summary Notes: Step 1 - Review the physical connections on the standard lab setup. Review the standard semester 2 lab diagram in the overview section of this lab and check all physical devices, cables and connections if the physical lab setup is available. Step 2 - Develop an IP addressing scheme. With the standard 5-router lab configuration shown in the overview section, there are eight (8) networks. Five (5) of these are Ethernet Local Area Networks (LANs) and 3 of them are serial Wide Area Networks (WANs). Review the modified setup of the lab diagrammed below. Using multiple Class C addresses similar to the existing standard lab, select addresses and document the IP addressing scheme by indicating where you will put each of the Class C addresses. Answer the following questions to assist your team in planning the network IP address scheme. 1. How many LANs are there? 2. How many WANs are there? 3. How many unique Class C network addresses will you need? 4. How many devices are there? 5. How many device interfaces will require IP addresses? Step 3 – Assign IP addresses to each device interface . Use the table below to identify each router interface that will require an IP address. Switches do not require an IP address but you may assign one if you want to. Hubs will not have an IP address.
Device name / model | Interface | IP Address | Subnet mask | Default gateway
6. Which interfaces will require clock rate to be set? Step 4 - Diagram the network using ConfigMaker. Use Cisco ConfigMaker to recreate the network diagram in the worksheet and add all configuration information such as IP addresses and subnet masks. ConfigMaker will allow you to enter all interface IP addresses and help you create a finished diagram. Choose your own device names. You should be familiar with ConfigMaker if you have completed lab 6.5.2.2. Reflection: What did you learn from designing a topology with such a large group of people? In what router mode did you spend most of your time? Could you have done it any other way? If so how? When doing this lab, how could a TFTP server have been useful?