CCNA SECURITY 1.1 INSTRUCTOR LAB MANUAL PDF

Free download. This document is exclusive property of Cisco Systems, Inc. Permission is granted to print and copy this document for non-commercial distribution and exclusive use by instructors in the CCNA Exploration: Routing Protocols and Concepts course as part of an official Cisco Networking Academy Program. The principles and structure of IP addressing and the fundamentals of Ethernet concepts, media, and operations are introduced to provide a foundation for the Cisco Systems Routers Instructor Guide. Page 42 The show cdp neighbors command allows students to perform the associated Flash e- Lab.

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The subnet scheme should be based on the number of host computers required in each subnet, as well as other network considerations, like future network host expansion. After you have created a subnetting scheme and completed the network diagram by filling in the host and interface IP addresses, you will configure the host PCs and router interfaces, including loopback interfaces.

The loopback interfaces are created to simulate additional LANs attached to router R1. After the network devices and host PCs have been configured, you will use the ping command to test for network connectivity.

This lab provides minimal assistance with the actual commands necessary to configure the router. However, the required commands are provided in Appendix A. Test your knowledge by trying to configure the devices without referring to the appendix. Other routers, switches and Cisco IOS versions can be used. Depending on the model and Cisco IOS version, the commands available and output produced might vary from what is shown in the labs. Refer to the Router Interface Summary Table at this end of the lab for the correct interface identifiers.

Note: Make sure that the routers and switches have been erased and have no startup configurations. If you are unsure, contact your instructor. An Ethernet straight-through cable may be used between the router and PC-B. If using another Cisco router model, it may be necessary to use an Ethernet crossover cable. Part 1: Design a Network Subnetting Scheme Step 1: Create a subnetting scheme that meets the required number of subnets and required number of host addresses.

In this scenario, you are a network administrator for a small subdivision within a larger company. You must create multiple subnets out of the You need a minimum of 25 host IP addresses. The second subnet is the administration network.

You need a minimum of 10 IP addresses. The third and fourth subnets are reserved as virtual networks on virtual router interfaces, loopback 0 and loopback 1.

These virtual router interfaces simulate LANs attached to R1. You also need two additional unused subnets for future network expansion. Note: Variable length subnet masks will not be used.

All of the device subnet masks will be the same length. Answer the following questions to help create a subnetting scheme that meets the stated network requirements: How many host addresses are needed in the largest required subnet?

So, the answer is a minimum of six networks. The network that you are tasked to subnet is This is represented in the binary by the ones and the zeros in the subnet mask. In the network mask, what do the ones represent? In the network mask, what do the zeros represent? To subnet a network, bits from the host portion of the original network mask are changed into subnet bits.

The number of subnet bits defines the number of subnets. Given each of the possible subnet masks depicted in the following binary format, how many subnets and how many hosts are created in each example? Hint: Remember that the number of host bits to the power of 2 defines the number of hosts per subnet minus 2 , and the number of subnet bits to the power of two defines the number of subnets.

Considering your answers, which subnet mask meets both the required minimum number of hosts and the minimum number of subnets required? When you have determined which subnet mask meets all of the stated network requirements, you will derive each of the subnets starting from the original network address.

List the subnets from first to last below. Remember that the first subnet is

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The subnet scheme should be based on the number of host computers required in each subnet, as well as other network considerations, like future network host expansion. After you have created a subnetting scheme and completed the network diagram by filling in the host and interface IP addresses, you will configure the host PCs and router interfaces, including loopback interfaces. The loopback interfaces are created to simulate additional LANs attached to router R1. After the network devices and host PCs have been configured, you will use the ping command to test for network connectivity. This lab provides minimal assistance with the actual commands necessary to configure the router. However, the required commands are provided in Appendix A. Test your knowledge by trying to configure the devices without referring to the appendix.

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