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NETGEAR WG102 manual How Does WPA Compare to WEP?

Models: WG102

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Reference Manual for the NETGEAR WG102 ProSafe 802.11g Wireless Access Point

WPA offers the following benefits:

•Enhanced data privacy

•Robust key management

•Data origin authentication

•Data integrity protection

The Wi-Fi Alliance is now performing interoperability certification testing on Wi-Fi Protected Access products. Starting August of 2003, all new Wi-Fi certified products will have to support WPA. NETGEAR will implement WPA on client and access point products and make this available in the second half of 2003. Existing Wi-Fi certified products will have one year to add WPA support or they will lose their Wi-Fi certification.

The 802.11i standard is currently in draft form, with ratification due at the end of 2003. While the new IEEE 802.11i standard is being ratified, wireless vendors have agreed on WPA as an interoperable interim standard.

How Does WPA Compare to WEP?

WEP is a data encryption method and is not intended as a user authentication mechanism. WPA user authentication is implemented using 802.1x and the Extensible Authentication Protocol (EAP). Support for 802.1x authentication is required in WPA. In the 802.11 standard, 802.1x authentication was optional. For details on EAP specifically, refer to IETF's RFC 2284.

With 802.11 WEP, all access points and client wireless adapters on a particular wireless LAN must use the same encryption key. A major problem with the 802.11 standard is that the keys are cumbersome to change. If you do not update the WEP keys often, an unauthorized person with a sniffing tool can monitor your network for less than a day and decode the encrypted messages. Products based on the 802.11 standard alone offer system administrators no effective method to update the keys.

For 802.11, WEP encryption is optional. For WPA, encryption using Temporal Key Integrity Protocol (TKIP) is required. TKIP replaces WEP with a new encryption algorithm that is stronger than the WEP algorithm, but that uses the calculation facilities present on existing wireless devices to perform encryption operations. TKIP provides 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. Through these enhancements, TKIP addresses all of known WEP vulnerabilities.

Wireless Networking Basics

B-9

October 2004

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NETGEAR WG102 manual How Does WPA Compare to WEP?
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WG102 specifications

The NETGEAR WG102 is a robust and versatile wireless access point designed to enhance network connectivity in a variety of environments, from small businesses to larger enterprise settings. This device is well-regarded for its ease of use, reliable performance, and a feature set that caters to both basic and advanced networking needs.

One of the key features of the WG102 is its support for the IEEE 802.11g standard, which provides data rates of up to 54 Mbps. This makes it suitable for high-speed internet access and seamless data transfer for users connected to the network. Additionally, the WG102 is backward compatible with the 802.11b devices, ensuring that existing hardware can be integrated into the network without issues, thereby protecting investment in older technology.

The WG102 also excels in its deployment flexibility. With Power over Ethernet (PoE) support, installation becomes significantly easier, as the access point can receive power through the Ethernet cable, eliminating the need for additional power outlets. This feature is particularly advantageous in locations where power supply access is limited or where aesthetic considerations are key.

Security is a vital aspect of any network, and the WG102 does not disappoint. It supports Wi-Fi Protected Access (WPA and WPA2) for secure wireless communications, ensuring that user data is encrypted and protected from potential threats. The device also features WEP encryption, allowing users to implement various security measures based on their specific needs.

The WG102's management capabilities include a web-based interface, enabling administrators to configure settings easily and monitor network performance. The device supports VLAN tagging, which can help in segmenting network traffic for better performance and security. The ability to manage multiple access points through a single interface also streamlines network management.

In terms of physical characteristics, the NETGEAR WG102 is designed for durability and reliability. Its compact form factor allows for discreet installation, whether mounted on a ceiling, wall, or placed on surfaces.

Overall, the NETGEAR WG102 is a dependable access point that offers a combination of speed, security, and ease of management, making it an excellent choice for those looking to enhance their wireless networking capabilities.