9.3.4 Connecting Wireless PCs to a Linksys WRT300N

IT Essentials: PC Hardware and Software v4.1
Chapter 9 Packet Tracer Activity/Student
9.3.4 Connecting Wireless PCs to a Linksys
WRT300N
Learning Objectives
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Configure basic wireless settings on a PC.
Configure basic security on the Linksys-WRT300N.
Verify full connectivity.
Introduction
In this activity, you will configure wireless PCs to connect to a network via the Linksys
WRT300N. You will configure basic security on the Linksys WRT300N by changing the
default SSID, the default password, and adding WEP encryption.
Task 1: Connect to the Linksys WRT300N Router
Step 1. Connect to the wireless router.
From WirelessPC1, access the Desktop then PC Wireless. Select the Connect tab and
connect to the default network.
Step 2. Verify connectivity settings.
While still at the desktop of the PC, close the Linksys GUI window and then verify the
connectivity settings by accessing the Command Prompt and typing the ipconfig
command.
PC>ipconfig
IP Address......................: 192.168.1.100
Subnet Mask.....................: 255.255.255.0
Default Gateway.................: 192.168.1.1
PC>
Task 2: Access the Linksys WRT300N
Step 1. Access Linksys WRT300N, WRS1 through the web browser.
On WirelessPC1, close the Command Prompt and then click the Web Browser. Enter the
URL 192.168.1.1, the default gateway of the PC.
Step 2. Enter authentication information.
You will be prompted for a username and password. The default username and password
are both admin. Once you have entered the login information, you should be viewing the
default page of the Linksys WRT300N web utility.
© 2007-2010, Cisco Systems, Inc. All rights reserved.
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IT Essentials: PC Hardware and Software v4.1
Chapter 9 Packet Tracer Activity/Student
Task 3: Basic Wireless Settings
Step 1. Configure the SSID.
To start securing the wireless network, access the Wireless page and change the default
Network Name (SSID) from Default to WRS1.
Step 2. Save settings.
Scroll down the page and then click Save Settings. When the settings are accepted by the
Linksys WRT300N, a Request Timeout message will appear in the web browser window.
After this message is displayed, continue to Step 3.
Step 3. Reconnect to the wireless network.
Since the SSID has changed, WirelessPC1 is currently unable to access the network. On
the Desktop return to PC Wireless and select the Connect tab. Connect to the WRS1
network.
Task 4: Enable Wireless Security
Step 1. From the Web Browser on WirelessPC1, reconnect to the router
setup page (http://192.168.1.1).
Step 2. Navigate to the Wireless page and then select the Wireless Security
tab.
Step 3. Under Security Mode, select WEP.
Step 4. Enter a WEP key.
A network is only as secure as its weakest point, and a wireless router is a very convenient
place to start if someone wants to damage your network. By requiring a WEP key to connect
to the router, you are adding a level of security.
Unfortunately, there are tools that can crack WEP key encryption. A more robust form of
wireless security is WPA and WPA-2, which are currently not supported by Packet Tracer.
Add the WEP key 1234567890 in the Key1 field.
Step 5. Save your settings.
Scroll down the page and then click Save Settings. You will become disconnected from the
network again after saving your settings. When the settings are accepted by the Linksys
WRT300N, aRequest Timeout message will appear in the web browser window. After this
message is displayed, continue to Step 6.
Step 6. Configure WirelessPC1 to use WEP authentication.
© 2007-2010, Cisco Systems, Inc. All rights reserved.
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IT Essentials: PC Hardware and Software v4.1
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Chapter 9 Packet Tracer Activity/Student
Return to the Desktop and click PC Wireless.
Click the Connect tab.
From the list of available wireless networks, select WRS1 and click Connect.
A screen will appear requesting the WEP key. Under WEP Key 1, type the WEP key:
1234567890 and then click Connect.
Click the Link Information tab to verify connectivity to the access point.
Your completion percentage should be 57%. If not, click Check Results to see which
required components are not yet completed.
Task 5: Managing and Securing the Web Utility of the Router
Step 1. Configure web access password.
From the Web Browser on WirelessPC1, return to the web utility page of the router
(http://192.168.1.1) and navigate to the Administration section. Change the router
password to cisco to secure access to the Linksys WRT300N by changing the default
password. Note that HTTP Web Utility Access is already selected by default.
Step 2. Scroll down the page and click Save Settings.
After implementing the changed password, the page will display: Settings are succesfful.
Below this message, there is a link to continue by logging into the web utility for the Linksys
WRT300N. Click the Continue link and a login window will popup. Enter the username of
admin and use cisco as the password to reconnect to the Linksys WRT300N web
configuation pages.
Task 6: Connect WirelessPC2 to the network
Step 1. Configure WirelessPC2 to use WEP authentication.
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From WirelessPC2 go to the Desktop tab and click PC Wireless.
Click the Connect tab.
From the list of available wireless networks, select WRS1 and click Connect.
A screen will appear requesting the WEP key. Under WEP Key 1, type the WEP key:
1234567890 and then click Connect.
Click the Link Information tab to verify connectivity to the access point.
Your completion percentage should be 100%. If not, click Check Results to see which
required components are not yet completed.
© 2007-2010, Cisco Systems, Inc. All rights reserved.
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