> | Lab 10.1.4 IP addressing & subnets Estimated time: 30 min. Objectives: This Lab will focus on your ability to accomplish the following tasks: Design and implement a 5-router network topology Develop an IP addressing scheme based on the topology Use a single Class C network address with subnets for LANs and WANs Assign IP addresses to router interfaces and hosts Diagram the network using ConfigMaker Background: In this lab you will work with other group members to design a 5-router network topology and an IP addressing scheme. You must come up with a proper IP addressing scheme using a single Class C network address (204.204.7.0) and multiple subnets. You will then use ConfigMaker to diagram of the network you have designed. You have creative freedom in designing your network. 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 pre-configured with the correct IP interface settings etc. If they are you will need to change the IP addresses to be different form those of the standard lab setup. The workstations may also be pre-configured to have the correct IP address settings prior to starting the lab. The IP addressing 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. 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 - Design the physical topology of the network. You should have at least 5 routers in different geographical locations. You should have at least one Ethernet LAN off of each router. Sketch out the topology as you go. Answer the following questions to assist in planning: 1. How many routers will you have? 2. Where will the routers be located? 3. How many switches will you have? Step 2 - Develop an IP addressing scheme. Review your topology sketch from step one. Using a single Class C address of 204.204.7.0, create a subnetwork design for your topology. Document your scheme by indicating where you will put each of the subnets. Answer the following questions to assist in planning. 4. How many LANs are there? 5. How many WANs are there? 6. How many unique subnets will you need? 7. How many hosts per subnet (LAN and WAN) will you have? 8. How many IP addresses (hosts + router interfaces) will be required? 9. What is your Class C network address? 10. How many bits will you borrow from the host portion of the network address? 11. What will your subnet mask be? 12. How many total useable subnets will this allow for? 13. How many hosts per subnet will this allow for? Step 3 - Assign IP addresses to each device interface. Using the table assign an IP address to each device interface or range of devices (hosts) 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. (answers will vary)
> Device name / model | Interface | IP address | Subnet mask | Default gateway
14. Which interfaces will require clock rate to be set? S0 on Lab-A, Lab-B, and Lab-C Step 4 - Diagram the network using ConfigMaker. Use Cisco ConfigMaker to create a network diagram 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. You should be familiar with ConfigMaker if you have completed lab 6.5.2.2. Use the web site listed in the overview section to download ConfigMaker if you do not have it. Reflection: