Introduction to Dynamic Routing Protocols - Routing Protocols and Concepts - page 157

Task 1: Examine the Network Requirements

Examine the network requirements and answer the questions that follow. Keep in mind that IP
addresses will be needed for each of the LAN interfaces.

How many subnets are needed? 15

What is the maximum number of IP addresses that are needed for a single subnet? 501

How many IP addresses are needed for each of the branch LANs? 101

How many IP addresses are needed for all the connections between routers? 16

What is the total number of IP addresses that are needed? 1723

Task 2: Design an IP Addressing Scheme

Subnet the 172.16.0.0 network into the appropriate number of subnets. Step 1.

What will the subnet mask be for the subnetworks? 255.255.254.0 or /23

How many usable host IP addresses are there per subnet? 510

Fill in Table 3-8 with the subnet information.

Table 3-8 Subnetting Chart for Lab 3-2

Subnet Subnet IP First Usable Last Usable Broadcast

Number Host IP Host IP Address

0 172.16.0.0 172.16.0.1 172.16.1.254 172.16.1.255

1 172.16.2.0 172.16.2.1 172.16.3.254 172.16.3.255

2 172.16.4.0 172.16.4.1 172.16.5.254 172.16.5.255

3 172.16.6.0 172.16.6.1 172.16.7.254 172.16.7.255

4 172.16.8.0 172.16.8.1 172.16.9.254 172.16.9.255

5 172.16.10.0 172.16.10.1 172.16.11.254 172.16.11.255

6 172.16.12.0 172.16.12.1 172.16.13.254 172.16.13.255

7 172.16.14.0 172.16.14.1 172.16.15.254 172.16.15.255

8 172.16.16.0 172.16.16.1 172.16.17.254 172.16.17.255

9 172.16.18.0 172.16.18.1 172.16.19.254 172.16.19.255

10 172.16.20.0 172.16.20.1 172.16.21.254 172.16.21.255

11 172.16.22.0 172.16.22.1 172.16.23.254 172.16.23.255

12 172.16.24.0 172.16.24.1 172.16.25.254 172.16.25.255

13 172.16.26.0 172.16.26.1 172.16.27.254 172.16.27.255

14 172.16.28.0 172.16.28.1 172.16.29.254 172.16.29.255

15 172.16.30.0 172.16.30.1 172.16.31.254 172.16.31.255