Ccna

Lab 3.5.2: Subnetting Scenario 1
Topology Diagram
192.168.9.128/27

192.168.9.224/224

192.168.9.64/27 192.168.9.160/27 192.168.9.96/27

192.168.9.192/27

192.168.9.32/27

Addressing Table
Device Interface Fa0/1 HQ S0/0/0 S0/0/1 Fa0/0 BRANCH1 Fa0/1 S0/0/0 Fa0/0 BRANCH2 Fa0/1 S0/0/1 PC1 PC2 PC3 PC4 PC5 NIC NIC NIC NIC NIC IP Address
192.168.9.129
192.168.9.161 192.168.9.97192.168.9.225 192.168.9.193 192.168.9.190

Subnet Mask
255.255.255.224
255.255.255.224 255.255.255.224 255.255.255.224 255.255.255.224 255.255.255.224

Default Gateway N/A N/A N/A N/A N/A N/A N/A N/A N/A
192.168.9.129 192.168.9.193 192.168.9.225

192.168.9.65 192.168.9.33 192.168.9.126 192.168.9.158 192.168.9.222 192.168.9.254

255.255.255.224 255.255.255.224 255.255.255.224 255.255.255.224255.255.255.224 255.255.255.224

192.168.9.94
192.168.9.62

255.255.255.224
255.255.255.224

192.168.9.65
192.168.9.33

All contents are Copyright © 1992–2007 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information.

Page 1 of 4

CCNA Exploration Routing Protocols and Concepts: Introduction to Dynamic Routing Protocols

Activity 3.5.2: Subnetting Scenario 1Learning Objectives
Upon completion of this lab, you will be able to: Determine the number of subnets needed. Determine the number of hosts needed. Design an appropriate addressing scheme. Assign addresses and subnet mask pairs to device interfaces and hosts. Examine the use of the available network address space. Determine how static routing could be applied to the network.

Scenario
Inthis lab, you have been given the network address 192.168.9.0/24 to subnet and provide the IP addressing for the network shown in the Topology Diagram. The network has the following addressing requirements: The BRANCH1 LAN 1 will require 10 host IP addresses. The BRANCH1 LAN 2 will require 10 host IP addresses. The BRANCH2 LAN 1 will require 10 host IP addresses. The BRANCH2 LAN 2 will require 10host IP addresses. The HQ LAN will require 20 host IP addresses. The link from HQ to BRANCH1 will require an IP address for each end of the link. The link from HQ to BRANCH2 will require an IP address for each end of the link. (Note: Remember that the interfaces of network devices are also host IP addresses and are included in the above addressing requirements.)

Task 1: Examine the NetworkRequirements.
Examine the network requirements and answer the questions below. Keep in mind that IP addresses will be needed for each of the LAN interfaces.
7 How many subnets are needed? __________

21 What is the maximum number of IP addresses that are needed for a single subnet? __________
11 How many IP addresses are needed for each of the branch LANs? __________
69 What is the total numberof IP addresses that are needed? __________

Task 2: Design an IP Addressing Scheme.
Step 1: Subnet the 192.168.9.0 network into the appropriate number of subnets.
255.255.255.224 What will the subnet mask be for the subnetworks? __________________________

30 How many usable host IP addresses are there per subnet? __________

Fill in the following chart with the subnet information. SubnetNumber 0 1 2 First Usable Host Address
192.168.9.1
192.168.9.33 192.168.9.65

Subnet Address
192.168.9.0 192.168.9.32 192.168.9.64

Last Usable Host Address
192.168.9.30
192.168.9.62 192.168.9.94

Broadcast Address
192.168.9.31
192.168.9.63 192.168.9.95
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All contents are Copyright © 1992–2007 Cisco Systems, Inc. All rights reserved. This document is Cisco PublicInformation.

CCNA Exploration Routing Protocols and Concepts: Introduction to Dynamic Routing Protocols

Activity 3.5.2: Subnetting Scenario 1

Subnet Number 3 4 5 6 7

Subnet Address
192.168.9.96 192.168.9.128
192.168.9.160 192.168.9.192 192.168.9.224

First Usable Host Address
192.168.9.97

Last Usable Host Address
192.168.9.126

Broadcast Address
192.168.9.95

192.168.9.129...