Addressing Table

Device	Interface	IP Address	Subnet Mask	Default Gateway
R1	Fa0/0			N/A
	Fa0/1			N/A
	S0/0/0	209.165.202.1	255.255.255.252	N/A
	S0/0/1	209.165.202.5	255.255.255.252	N/A
R2	Fa0/0			N/A
	Fa0/1			N/A
	S0/0/0	209.165.202.9	255.255.255.252	N/A
	S0/0/1	209.165.202.2	255.255.255.252	N/A
R3	Fa0/0			N/A
	Fa0/1			N/A
	S0/0/0	209.165.202.6	255.255.255.252	N/A
	S0/0/1	209.165.202.10	255.255.255.252	N/A

Introduction:

In this activity, you have been given the network address 172.16.0.0/16 to subnet and provide the IP addressing for the network shown in the Topology Diagram. VLSM will be used so that the addressing requirements can be met using the 172.16.0.0/16 network. The network has the following addressing requirements:

The R1 LAN 1 will require 8,000 host IP addresses.

The R1 LAN 2 will require 4,000 host IP addresses.

The R2 LAN 1 will require 2,000 host IP addresses.

The R2 LAN 2 will require 1,000 host IP addresses.

The R3 LAN 1 will require 500 host IP addresses.

The R3 LAN 2 will require 200 host IP addresses.

The serial link from R1 to R2 has been preconfigured with the 209.165.202.0/30 network.

The serial link from R1 to R3 has been preconfigured with the 209.165.202.4/30 network.

The serial link from R2 to R3 has been preconfigured with the 209.165.202.8/30 network.

Questions:

1. How many subnets are needed?

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

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

4. What is the total number of IP addresses that are available in the 172.16.0.0/16 network?

5. Can the network addressing requirements be met using the 172.16.0.0/16 network?

6.

a. How many IP addresses are needed for the R1 LAN 1?

b. What is the smallest size subnet that can be used to meet this requirement?

c. What is the maximum number of IP addresses that can be assigned in this size subnet?

7.

a. How many IP addresses are needed for the R1 LAN 2?

b. What is the smallest size subnet that can be used to meet this requirement?

c. What is the maximum number of IP addresses that can be assigned in this size subnet?

Please explain how you get the answer..

R.3. 3 LAN 1 1121-AN ) R3 LAN 2 R2 LAN 2 R2