Packet Tracer $-$ Designing and Implementing a VLSM Addressing Scheme

Addressing Table

Device

Interface

IP Address

Subnet Mask

Default Gateway

Remote$-$Site$1$

G$0/0$

N$/$A

G$0/1$

N$/$A

S$0/0/0$

N$/$A

Remote$-$Site$2$

G$0/0$

N$/$A

G$0/1$

N$/$A

S$0/0/0$

N$/$A

Sw$1$

VLAN $1$

Sw$2$

VLAN $1$

Sw$3$

VLAN $1$

Sw$4$

VLAN $1$

User$-1$

NIC

User$-2$

NIC

User$-3$

NIC

User$-4$

NIC

Objectives

Part $1$: Examine the Network Requirements

Part $2$: Design the VLSM Addressing Scheme

Part $3$: Assign IP Addresses to Devices and Verify Connectivity

Background

In this activity, you are given a $/24$ network address to use to design a VLSM addressing scheme. Based on a set of requirements, you will assign subnets and addressing, configure devices and verify connectivity.

Part $1$: Examine the Network Requirements

Step $1$: Determine the number of subnets needed.

You will subnet the network address $192\mathrm{.}168\mathrm{.}72\mathrm{.}0/24.$ The network has the following requirements:

$$ Sw$1$ LAN will require $7$ host IP addresses

$$ Sw$2$ LAN will require $15$ host IP addresses

$$ Sw$3$ LAN will require $29$ host IP addresses

$$ Sw$4$ LAN will require $58$ host IP addresses

How many subnets are needed in the network topology?

Step $2$: Determine the subnet mask information for each subnet.

a$.$ Which subnet mask will accommodate the number of IP addresses required for Sw$1?$

How many usable host addresses will this subnet support?

b$.$ Which subnet mask will accommodate the number of IP addresses required for Sw$2?$

How many usable host addresses will this subnet support?

c$.$ Which subnet mask will accommodate the number of IP addresses required for Sw$3?$

How many usable host addresses will this subnet support?

d$.$ Which subnet mask will accommodate the number of IP addresses required for Sw$4?$

How many usable host addresses will this subnet support?

e$.$ Which subnet mask will accommodate the number of IP addresses required for the connection between Remote$-$Site$1$ and Remote$-$Site$2?$

Part $2$: Design the VLSM Addressing Scheme

Step $1$: Divide the $192\mathrm{.}168\mathrm{.}72\mathrm{.}0/24$ network based on the number of hosts per subnet.

a$.$ Use the first subnet to accommodate the largest LAN.

b$.$ Use the second subnet to accommodate the second largest LAN.

c$.$ Use the third subnet to accommodate the third largest LAN.

d$.$ Use the fourth subnet to accommodate the fourth largest LAN.

e$.$ Use the fifth subnet to accommodate the connection between Remote$-$Site$1$ and Remote$-$Site$2.$

Step $2$: Document the VLSM subnets.

Complete the Subnet Table, listing the subnet descriptions $($e$.$g$.$ Sw$1$ LAN$),$ number of hosts needed, then network address for the subnet, the first usable host address, and the broadcast address. Repeat until all addresses are listed.

Subnet Table

Subnet Description

Number of Hosts Needed

Network Address$/$CIDR

First Usable Host Address

Broadcast Address

Step $3$: Document the addressing scheme.

a$.$ Assign the first usable IP addresses to Remote$-$Site$1$ for the two LAN links and the WAN link.

b$.$ Assign the first usable IP addresses to Remote$-$Site$2$ for the two LANs links. Assign the last usable IP address for the WAN link.

c$.$ Assign the second usable IP addresses to the switches.

d$.$ Assign the last usable IP addresses to the hosts.

Part $3$: Assign IP Addresses to Devices and Verify Connectivity

Most of the IP addressing is already configured on this network. Implement the following steps to complete the addressing configuration.

Step $1$: Configure IP addressing on Remote$-$Site$1$ LAN interfaces.

Step $2$: Configure IP addressing on Sw$3,$ including the default gateway.

Step $3$: Configure IP addressing on User$-4,$ including the default gateway.

Step $4$: Verify connectivity.You did not complete the activity. Please close this window and try again.