Linksys WRE54G manual WEP Security screen

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Wireless-G Range Expander

someone could easily obtain the SSID information with site survey software and gain unauthorized access to your network. Click Enable to broadcast the SSID to all wireless devices in range. Click Disable to increase network security and prevent the SSID from being seen on networked PCs.

•Channel. Select the appropriate channel from the list provided, between 1 and 11, to correspond with your network settings. All points in your wireless network must use the same channel to function correctly.

•Wireless Security. To enable wireless security, through WEP encryption, select the Enable radio button. To disable such security, select the radio button by Disable. To change the security settings to match your network, click the Edit Security Settings button. A notification window will ask if you wish to change the settings. Clicking the Edit Security Settings button will open the following options:

Default Transmit Key. When using WEP keys and not a Passphrase (described below), this selection corresponds with the Key used.

WEP Encryption. Select the level of WEP encryption you wish to use, 64-bit 10 hex digits or 128-bit 26 hex digits. Higher encryption levels offer higher levels of security, but due to the complexity of the encryption, they may decrease network performance.

Passphrase. Instead of manually entering WEP keys, you can enter a Passphrase. This Passphrase is used to generate one or more WEP keys. It is case-sensitive and should not be longer than 16 alphanumeric characters. (This Passphrase function is compatible with Linksys wireless products only. If you want to communicate with non-Linksys wireless products, enter the WEP key manually on the non-Linksys wireless products.) After you enter the Passphrase, click the Generate button to create WEP keys.

Keys 1-4. WEP keys enable you to create an encryption scheme for wireless transmissions. If you are not using a Passphrase, then manually enter a set of values. (Do not leave a key field blank, and do not enter all zeroes. These are not valid key values.)

If you are using 64-bit WEP encryption, then the key must be exactly 10 hexadecimal characters in length. If you are using 128-bit WEP encryption, then the key must be exactly 26 hexadecimal characters in length. Valid hexadecimal characters are “0”-“9” and “A”-“F”.

•When finished making your changes on this tab, click the Save Settings button to save these changes, or click the Cancel Changes button to undo your changes.

•Access Point MAC Address. In this field, enter the MAC Address of the access point with which the Range Expander is communicating.

Figure 6-3: WEP Security screen

encryption: encoding data transmitted in a network

software: instructions for the computer.

passphrase: used much like a password, a passphrase simplifies the WEP encryption process by automatically generating the WEP encryption keys for Linksys products.

MAC address: the unique address that a manufacturer assigns to each networking device.

Chapter 5: Configuring the Wireless-G Range Expander

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The Setup Tab

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Contents 802 GHz .11g Wireless- G Copyright and Trademarks Word definitionTable of Contents Power Plate Front PanelIntroduction WelcomeWhat’s in this Guide? Wireless-G Range Expander Planning your Wireless Network Ssid your wireless networks nameNetwork Topology RoamingNetwork Layout Light will appear red Flash when there is wireless network activitySide Panel Power Plate Connecting the Wireless-G Range Expander Setting Up the Wireless-G Range Expander Setup Wizard’s Welcome screenChoose an access point Security Settings screen Bit a binary digit 12 The Congratulations screen Configuring the Wireless-G Range Expander OverviewSetup Tab Basic SetupWEP Security screen Password Download to receive a file transmitted over a networkHelp Appendix a Troubleshooting Common Problems and SolutionsFrequently Asked Questions What Ieee 802.11b features are supported?What is Ad-hoc? What is Infrastructure?What is Roaming? What is ISM band?What is Spread Spectrum? What is DSSS? What is FHSS? And what are their differences?What is WEP? What is a MAC Address?How do I avoid interference? How do I reset the Range Expander?How do I resolve issues with signal loss? Security Threats Facing Wireless Networks Appendix B Wireless SecuritySecurity Precautions Appendix B Wireless Security Wireless-G Range Expander Figure C-1 Upgrade Firmware Appendix C Upgrading FirmwareAppendix D Windows Help TCP/IPAppendix E Glossary Wireless-G Range Expander Wireless-G Range Expander Appendix F Specifications WEPAppendix G Warranty Information Limited WarrantyAppendix H Regulatory Information FCC StatementSafety Notices FCC Part 68 Statement Wireless-G Range Expander Appendix I Contact Information
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