NETGEAR WPN802 manual Temporal Key Integrity Protocol Tkip

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Reference Manual for the NETGEAR RangeMax™ Wireless Access Point WPN802

Temporal Key Integrity Protocol (TKIP)

WPA uses TKIP to provide important data encryption enhancements including a per-packet key mixing function, a message integrity check (MIC) named Michael, an extended initialization vector (IV) with sequencing rules, and a re-keying mechanism. TKIP also provides for the following:

•The verification of the security configuration after the encryption keys are determined.

•The synchronized changing of the unicast encryption key for each frame.

•The determination of a unique starting unicast encryption key for each preshared key authentication.

Michael

With 802.11 and WEP, data integrity is provided by a 32-bit integrity check value (ICV) that is appended to the 802.11 payload and encrypted with WEP. Although the ICV is encrypted, you can use cryptanalysis to change bits in the encrypted payload and update the encrypted ICV without being detected by the receiver.

With WPA, a method known as Michael specifies a new algorithm that calculates an 8-byte message integrity check (MIC) using the calculation facilities available on existing wireless devices. The MIC is placed between the data portion of the IEEE 802.11 frame and the 4-byte ICV. The MIC field is encrypted together with the frame data and the ICV.

Michael also provides replay protection. A new frame counter in the IEEE 802.11 frame is used to prevent replay attacks.

AES Support for WPA2

One of the encryption methods supported by WPA2 is the advanced encryption standard (AES), although AES support will not be required initially for Wi-Fi certification. This is viewed as the optimal choice for security conscience organizations, but the problem with AES is that it requires a fundamental redesign of the NIC’s hardware in both the station and the access point. TKIP is a pragmatic compromise that allows organizations to deploy better security while AES capable equipment is being designed, manufactured, and incrementally deployed.

Wireless Networking Basics

B-15

202-10101-01, May 2005

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Contents NETGEAR, Inc 202-10101-01, May Product and Publication Details 202-10101-01, May Contents Chapter Management and Information Glossary Viii Contents Audience, Scope, Conventions, and Formats Chapter About This ManualHow to Print this Manual How to Use This ManualPrinting the Full Manual 202-10101-01, May Key Features Chapter IntroductionRangeMax Multi-In, Multi-Out Mimo Technology Autosensing Ethernet Connections with Auto Uplink 802.11g Wireless NetworkingPackage Contents Rear Panel Front Panel Status Lights202-10101-01, May 202-10101-01, May Default Factory Settings Chapter Basic Installation and ConfigurationPrepare to Install Your Wireless Access Point First, Connect the Wireless Access Point to Your ComputerSystem Requirements WPN802 connected to a computer during configuration WPN802 Settings Then, Configure the Basic SettingsBasic Settings menu Wireless Settings menu Next, Configure the Wireless SettingsWPN802 placed in a vertical orientation Deploy the WPN802 and Verify Wireless ConnectivityLogin window How to Log In to the WPN802 Using Its Default IP AddressBrowser display the WPN802 settings home 202-10101-01, 4 May Observe Performance, Placement, and Range Guidelines Chapter Wireless ConfigurationVertical orientation required on metallic surfaces Understanding Wireless SettingsUnderstanding Advanced Wireless Settings Advanced Wireless Settings menu Wireless Data Security Options Implementing Appropriate Wireless Security202-10101-01, 4 May If WPA-PSK Authentication is Used How to Set Up and Test Basic Wireless Connectivity How to Configure WEP or WPA Wireless Settings encryption menu Advanced Wireless Settings Configuring Advanced Wireless SettingsWireless Access Control List screen Wireless Card Access Restricting by MAC AddressSetting up the Access Control List Turning Access Control On202-10101-01, 4 May Chapter Management and Information Changing the PasswordUpgrading the Wireless Access Point Firmware First, Prepare for the Firmware UpgradeThen, Upgrade the Firmware Upgrade Firmware dialog box Backing up Settings or Restoring SettingsBacking up Settings Restoring Settings from a Backup FileRestoring Factory Default Settings Viewing a List of Available Wireless Stations Rebooting the WPN802 Access PointStatistics screen Viewing StatisticsTroubleshooting Tips Chapter TroubleshootingNo lights are lit on the access point Ethernet light is not litWhen I enter a URL or IP address I get a timeout error Cannot configure the access point from a browserTo clear all data and restore the factory default values Using the Reset Button to Restore Factory Default Settings202-10101-01, May Power Adapter Appendix a Technical SpecificationsWireless Appendix B Wireless Networking Basics Wireless Networking OverviewInfrastructure Mode Authentication and WEP Data Encryption Ad Hoc Mode Peer-to-Peer WorkgroupNetwork Name Extended Service Set Identification Essid Open System Authentication Authentication802.11b Authentication Open System Steps 802.11b Authentication Shared Key Steps Key Size WEP Configuration Options Wireless ChannelsWPA and WPA2 Wireless Security How Does WPA Compare to WEP? How Does WPA Compare to WPA2 Ieee 802.11i? What are the Key Features of WPA and WPA2 Security?Wireless Networking Basics Figure B-3 WPA/WPA2 Overview Access point replies with an EAP-request identity message WPA/WPA2 Data Encryption Key Management Temporal Key Integrity Protocol Tkip Product Support for WPA/WPA2 Is WPA/WPA2 Perfect?Changes to Wireless Access Points Changes to Wireless Client Programs Glossary 802.11e Standard Access Point AP Bridge CSMA/CD Carrier Sense Multiple Action/Collision Detection Essid more commonly referred to as Ssid Short Set Identifier Ieee Institute of Electrical and Electronics Engineers MAC Media Access Control PHY Range Site survey TCP/IP War Driving Wi-Fi Protected Access and Ieee 802.11i Comparison Wi-Fi Protected Access in Mixed Mode Deployment Glossary
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WPN802 specifications

The NETGEAR WPN802 is an exceptional wireless access point that has made a significant impact on the home networking landscape. Designed to provide robust wireless connectivity, the WPN802 is an 802.11g compliant device, delivering reliable performance at data rates of up to 54 Mbps. This allows users to enjoy seamless Internet access for streaming, gaming, and other bandwidth-intensive applications.

One of the standout features of the NETGEAR WPN802 is its ease of installation and setup. The device is equipped with a user-friendly setup wizard that guides users step by step through the process, making it accessible even for those who may not be tech-savvy. The WPN802 also supports both wired and wireless connections, allowing it to integrate seamlessly into existing network configurations, whether expanding a home network or setting up a new one.

Security is a crucial aspect of any wireless network, and the WPN802 addresses this with several built-in security features. It supports WEP, WPA, and WPA2 encryption protocols, ensuring that data transmitted over the network remains secure from unauthorized access. Additionally, the device provides MAC address filtering, which allows users to control the devices that can connect to the network.

Another significant feature of the NETGEAR WPN802 is its versatility. It can function not only as an access point but also as a wireless bridge or a repeater, enabling users to extend the range of their existing wireless network. This flexibility is particularly valuable in larger homes or offices where coverage may be spotty in certain areas.

The WPN802 also includes Quality of Service (QoS) features that prioritize bandwidth for different applications, ensuring that critical tasks such as video conferencing and online gaming receive the necessary resources for optimal performance. This enhances the overall user experience, especially in environments with multiple connected devices.

In terms of build and design, the NETGEAR WPN802 is compact and lightweight, allowing for easy placement in various locations without being obtrusive. Its stylish exterior ensures it can fit in seamlessly with home or office decor.

In conclusion, the NETGEAR WPN802 is a highly reliable and feature-rich wireless access point that caters to the needs of modern users. With its fast wireless speeds, robust security features, versatile functionality, and user-friendly setup, it remains a commendable choice for anyone looking to enhance their wireless networking experience. Whether used in a residential or small business setting, the WPN802 stands out as a dependable solution that continues to meet the demands of today's connected world.
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