21.2.1 Packet Tracer – Troubleshoot WLAN Issues Answers

Last Updated on February 27, 2021 by Admin

21.2.1 Packet Tracer – Troubleshoot WLAN Issues Answers

Packet Tracer – Troubleshoot WLAN Issues (Answers Version)

Answers Note: Red font color or gray highlights indicate text that appears in the instructor copy only.

Addressing Table

Device

Interface

IP Address

Home Wireless Router

Internet

DHCP

Home Wireless Router

LAN

192.168.0.1

R1

G0/0/0.10

192.168.10.1/24

R1

G0/0/0.20

192.168.20.1/24

R1

G0/0/0.200

192.168.200.1/24

R1

G0/0/1

172.31.1.1/24

SW1

VLAN 200

192.168.200.100/24

LAP-1

G0

DHCP

WLC-1

Management

192.168.200.254/24

RADIUS Server

NIC

172.31.1.254/24

Admin PC

NIC

192.168.200.200/24

Web Server

NIC

203.0.113.78/24

DNS Server

NIC

10.100.100.254

Home Admin

NIC

DHCP

Laptop

NIC

DHCP

Laptop1

Wireless0

DHCP

Laptop2

Wireless0

DHCP

Tablet PC

Wireless0

DHCP

Smartphone

Wireless0

DHCP

WLAN Information

WLAN

SSID

Authentication

Username

Password

Home Network

HomeSSID

WPA2-Personal

N/A

Cisco123

WLAN VLAN10

SSID-10

WPA-2 PSK/Personal

N/A

Cisco123

WLAN VLAN 20

SSID-20

WPA-2 802.1x/Enterprise

user2

user2Pass

Objectives

In this activity, you will troubleshoot various issues in home wireless and enterprise wireless networks.

  • Troubleshoot wireless LAN connectivity issues in a home network.
  • Troubleshoot wireless LAN connectivity issues in an enterprise network.

Background / Scenario

Now that you have learned how to configure wireless in home and enterprise networks, you need to learn how to troubleshoot in both wireless environments. Your goal is to enable connectivity between hosts on the networks to the web server by both IP address and URL. Connectivity between the home and enterprise networks is not required.

To access the Home Wireless Router, the username and password is admin.

The WLC management interface username is admin and the password is Cisco123.

Instructions

Part 1:Troubleshoot the Network

Note: You will only be troubleshooting the Home Wireless Router, WLC and wireless host devices in this activity.

Step 1:Test connectivity.

  1. Test connectivity between the various wireless hosts and the web server by both IP and URL www.netacad.pt.
  2. Record the hosts that cannot access the web server in the table in Step 2.

Step 2:Investigate issues and record findings.

  1. Investigate the connectivity issues with each host. Issues may be with the host configuration, or with other wireless network components.
  2. Complete the table.

Device

Network

Home/Enterprise

Issue

Remedy

Smartphone, Tablet PC, Laptop

Home

Unable to access URL of server by name. The DNS server address misconfigured on Home Wireless Router DHCP server.

Change static address of the DNS server in the Home Wireless router DHCP server to 10.100.100.254

Tablet PC

Home

Client set to static addressing

Should be set to DHCP.

Wireless router

Home

Internet interface is set to static.

Set internet interface to DHCP

WLC

Enterprise

WLAN Wireless VLAN 20 is not enabled.

Enable WLAN and apply.

Laptop 2

Enterprise

Laptop 2 won’t connect to Wireless VLAN 20. Incorrect username in client profile.

Change username to user2.

WLC

Enterprise

Laptop 1 cannot connect to the WLAN. On the WLC, WLAN-Wireless VLAN 10 has Authentication Key Management set to 802.1x rather than PSK, which is the configuration required for WPA2 PSK security.

Change Authentication Key Management to PSK, enter the PSK value from the WLAN table.

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Part 2:Fix Issues

Make changes to the device configurations so hosts can achieve connectivity with the network. Test to ensure all hosts can reach the communication goal of connecting to the web server by both IP address and URL.

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