11.10.1 Packet Tracer – Design and Implement a VLSM Addressing Scheme (Instructions Answer)

11.10.1 Packet Tracer – Design and Implement a VLSM Addressing Scheme Instructor Version

Topology

11.10.1 Packet Tracer - Design and Implement a VLSM Addressing Scheme (Instructions Answer) 1

Addressing Table

Device Interface Address Subnet Mask Default Gateway
East G0/0 10.1.1.97 255.255.255.240 N/A
G0/1 10.1.1.65 255.255.255.224 N/A
S0/0/0 10.1.1.121 255.255.255.252 N/A
West G0/0 10.1.1.113 255.255.255.248 N/A
G0/1 10.1.1.1 255.255.255.192 N/A
S0/0/0 10.1.1.122 255.255.255.252 N/A
ES-1 VLAN 1 10.1.1.98 255.255.255.240 10.1.1.97
ES-2 VLAN 1 10.1.1.66 255.255.255.224 10.1.1.65
WS-1 VLAN 1 10.1.1.114 255.255.255.248 10.1.1.113
WS-2 VLAN 1 10.1.1.2 255.255.255.192 10.1.1.1
PC E1-22 NIC 10.1.1.110 255.255.255.240 10.1.1.97
PC E2-47 NIC 10.1.1.94 255.255.255.224 10.1.1.65
PC W1-201 NIC 10.1.1.118 255.255.255.248 10.1.1.113
PC W2-87 NIC 10.1.1.62 255.255.255.192 10.1.1.1

Objectives

In this lab you will design a VLSM addressing scheme given a network address and host requirements. You will configure addressing on routers, switches, and network hosts.

  • Design a VLSM IP addressing scheme given requirements.
  • Configure addressing on network devices and hosts.
  • Verify IP connectivity.
  • Troubleshoot connectivity issues as required.

Background / Scenario

You have been asked to design, implement, and test an addressing scheme for a customer. The customer has given you the network address that is suitable for the network, the topology, and the host requirements. You will implement and test your design.

Instructions

You have been given the network address 10.1.1.0/24 by your customer. The host address requirements are:

Requirements

Host Requirements:

LAN Number of Addresses Required

Design Requirements

  • Create the addressing design. Follow guidelines provided in the curriculum regarding the order of the subnets.
  • The subnets should be contiguous. There should be no unused address space between subnets.
  • Provide the most efficient subnet possible for the point-to-point link between the routers.
  • Document your design in a table such as the one below.
Subnet Description Number of Hosts Needed Network Address/CIDR First Usable Host Address Last Usable Host Address Broadcast Address
WS-2 LAN 47 10.1.1.0/26 10.1.1.1 10.1.1.62 10.1.1.63
ES-2 LAN 28 10.1.1.64/27 10.1.1.65 10.1.1.94 10.1.1.95
ES-1 LAN 11 10.1.48.96/28 10.1.1.97 10.1.1.110 10.1.1.111
WS-1 LAN 5 10.1.48.112/29 10.1.1.113 10.1.1.118 10.1.1.119
WAN Link 2 10.1.48.120/30 10.1.1.121 10.1.1.122 10.1.1.123

Configuration Requirements

Note: You will configure addressing on all devices and hosts in the network.

  • Assign the first usable IP addresses in the appropriate subnets to [[R1Name]] for the two LAN links and the WAN link.
  • Assign the first usable IP addresses in the appropriate subnets to [[R2Name]] for the two LANs links. Assign the last usable IP address for the WAN link.
  • Assign the second usable IP addresses in the appropriate subnets to the switches.
  • The switch management interface should be reachable from hosts on all of the LANs.
  • Assign the last usable IP addresses in the appropriate subnets to the hosts.

If the addressing design and implementation are correct, all hosts and devices should be reachable over the network.

East

en
conf t
int g0/0
ip add 10.1.1.97 255.255.255.240
no shut
int g0/1
ip add 10.1.1.65 255.255.255.224
no shut
int s0/0/0
ip add 10.1.1.121 255.255.255.252
no shut

West

en
conf t
int g0/0
ip add 10.1.1.113 255.255.255.248
no shut
int g0/1
ip add 10.1.1.1 255.255.255.192
no shut
int s0/0/0
ip add 10.1.1.122 255.255.255.252
no shut

ES-1

en
conf t
int vlan 1
ip add 10.1.1.98 255.255.255.240
no shut
ip def 10.1.1.97

ES-2

en
conf t
int vlan 1
ip add 10.1.1.66 255.255.255.224
no shut
ip def 10.1.1.65

WS-1

en
conf t
int vlan 1
ip add 10.1.1.114 255.255.255.248
no shut
ip def 10.1.1.113

WS-2

en
conf t
int vlan 1
ip add 10.1.1.2 255.255.255.192
no shut
ip def 10.1.1.1

Download PDF & PKA file:

Scenario 2 – Network Address: 172.19.67.0/24

Subnet Table

Subnet Description Number of Hosts Needed Network Address/CIDR First Usable Host Address Last Usable Host Address Broadcast Address
HQ-1 LAN 19 172.19.67.0/27 172.19.67.1 172.19.67.30 172.19.67.31
HQ-2 LAN 23 172.19.67.32/27 172.19.67.33 172.19.67.62 172.19.67.63
Remote-1 LAN 11 172.19.67.64/28 172.19.67.65 172.19.67.78 172.19.67.79
Remote-2 LAN 7 172.19.67.80/28 172.19.67.81 172.19.67.94 172.19.67.95
WAN Link 2 172.19.67.96/30 172.19.67.97 172.19.67.98 172.19.67.99

Device Addressing Table

Device Interface Address Subnet Mask Default Gateway
HQ G0/0 172.19.67.1 255.255.255.224 N/A
HQ G0/1 172.19.67.33 255.255.255.224 N/A
HQ S0/0/0 172.19.67.97 255.255.255.252 N/A
Remote G0/0 172.19.67.65 255.255.255.240 N/A
Remote G0/1 172.19.67.81 255.255.255.240 N/A
Remote S0/0/0 172.19.67.98 255.255.255.252 N/A
HQ-1 VLAN 1 172.19.67.2 255.255.255.224 172.19.67.1
HQ-2 VLAN 1 172.19.67.34 255.255.255.224 172.19.67.33
Remote-1 VLAN 1 172.19.67.66 255.255.255.240 172.19.67.65
Remote-2 VLAN 1 172.19.67.82 255.255.255.240 172.19.67.81
WS116 NIC 172.19.67.30 255.255.255.224 172.19.67.1
WS145 NIC 172.19.67.62 255.255.255.224 172.19.67.33
WS203 NIC 172.19.67.78 255.255.255.240 172.19.67.65
WS234 NIC 172.19.67.94 255.255.255.240 172.19.67.81

HQ

en
conf t
int g0/0
ip add 172.19.67.1 255.255.255.224
no shut
int g0/1
ip add 172.19.67.33 255.255.255.224
no shut
int s0/0/0
ip add 172.19.67.97 255.255.255.252
no shut

Remote

en
conf t
int g0/0
ip add 172.19.67.65 255.255.255.240
no shut
int g0/1
ip add 172.19.67.81 255.255.255.240
no shut
int s0/0/0
ip add 172.19.67.98 255.255.255.252
no shut

HQ-1

en
conf t
int vlan 1
ip add 172.19.67.2 255.255.255.224
no shut
ip def 172.19.67.1

HQ-2

en
conf t
int vlan 1
ip add 172.19.67.34 255.255.255.224
no shut
ip def 172.19.67.33

Remote-1

en
conf t
int vlan 1
ip add 172.19.67.66 255.255.255.240
no shut
ip def 172.19.67.65

Remote-2

en
conf t
int vlan 1
ip add 172.19.67.82 255.255.255.240
no shut
ip def 172.19.67.81

Scenario 3 – Network Address: 192.168.203.0/24

11.10.1 Packet Tracer - Design and Implement a VLSM Addressing Scheme

11.10.1 Packet Tracer – Design and Implement a VLSM Addressing Scheme

Subnet Table

Subnet
Descr
iption
Number of Hosts Needed Network Address/CIDR First Usable Host Address Last Usable Host Address Broadcast Address
PS-101
LAN
32 192.168.203.0
/26
192.168.203.1 192.168.203.62 192.168.203.63
PD-1
LAN
21 192.168.203.64
/27
192.168.203.65 192.168.203.94 192.168.203.95
PS-115
LAN
19 192.168.203.96
/27
192.168.203.97 192.168.203.126 192.168.203.127
PD-2
LAN
14 192.168.203.128
/28
192.168.203.129 192.168.203.142 192.168.203.143
WAN
Link
2 192.168.203.144
/30
192.168.203.145 192.168.203.146 192.168.203.147

Device Addressing Table

Device Interface Address Subnet Mask Default Gateway
Police G0/0 192.168.203.129 255.255.255.240 N/A
Police G0/1 192.168.203.97 255.255.255.224 N/A
Police S0/0/0 192.168.203.145 255.255.255.252 N/A
Schools G0/0 192.168.203.65 255.255.255.224 N/A
Schools G0/1 192.168.203.1 255.255.255.192 N/A
Schools S0/0/0 192.168.203.146 255.255.255.252 N/A
PD-1 VLAN 1 192.168.203.130 255.255.255.240 192.168.203.129
PD-2 VLAN 1 192.168.203.98 255.255.255.224 192.168.203.97
PS-101 VLAN 1 192.168.203.66 255.255.255.224 192.168.203.65
PS-115 VLAN 1 192.168.203.2 255.255.255.192 192.168.203.1
PD-1-11 NIC 192.168.203.142 255.255.255.240 192.168.203.129
PD-2-23 NIC 192.168.203.126 255.255.255.224 192.168.203.97
PS-101-87 NIC 192.168.203.94 255.255.255.224 192.168.203.65
PS-115-12 NIC 192.168.203.62 255.255.255.192 192.168.203.1

Police

en
conf t
int g0/0
ip add 192.168.203.129 255.255.255.240
no shut
int g0/1
ip add 192.168.203.97 255.255.255.224
no shut
int s0/0/0
ip address 192.168.203.145 255.255.255.252
no shut

Schools

en
conf t
int g0/0
ip add 192.168.203.65 255.255.255.224
no shut
int g0/1
ip add 192.168.203.1 255.255.255.192
no shut
int s0/0/0
ip address 192.168.203.146 255.255.255.252
no shut

PD-1

en
conf t
int vlan 1
ip add 192.168.203.130 255.255.255.240
no shut
ip def 192.168.203.129

PD-2

en
conf t
int vlan 1
ip add 192.168.203.98 255.255.255.224
no shut
ip def 192.168.203.97

PS-101

en
conf t
int vlan 1
ip add 192.168.203.66 255.255.255.224
no shut
ip def 192.168.203.65

PS-115

en
conf t
int vlan 1
ip add 192.168.203.2 255.255.255.192
no shut
ip def 192.168.203.1

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Bernardo
Bernardo
5 months ago

For this to work, in the 3rd scenario, you mus use PD-1 (14 hosts), PD-2 (19 hosts), PS-101 (21 hosts), PS-115 (32 hosts) to have this addressing table.. so the subnet table must be different to fit this configurations