Chapter 36

Advanced Security

Extreme Security (xSec) is a cryptographically secure, Layer-2 tunneling network protocol implemented over the 802.1x protocol. The xSec protocol can be used to secure Layer-2 traffic between the Dell controller and wired and wireless clients, or between Dell controllers.

NOTE: xSec is an optional ArubaOS software module. You must purchase and install the license for the xSec software module on

the controller.

Topics in this chapter include:

•"Securing Client Traffic" on page 670

•"Securing Controller-to-Controller Communication" on page 677

•"Configuring the Odyssey Client on Client Machines" on page 678

xSec encrypts an original Layer-2 data frame inside a Layer-2 xSec frame, the contents of which are defined by the protocol. xSec relies on 256-bit Advanced Encryption Standard (AES) encryption.

Upon 802.1x client authentication, xSec creates a tunnel between the client and the controller. The xSec frame sent over the air or wire between the user and the controller contains user and controller information, as well as original IP and MAC addresses, in encrypted form. All user information is secured using xSec. This concept is also extended to secure management information and data between two Dell controllers on the same VLAN.

For xSec tunneling between a client and controller to work, a version of the Funk Odyssey client software that supports xSec needs to be installed on the client. It is possible to secure clients running Windows 2000 and XP operating systems using xSec and the Odyssey client software..

NOTE: xSec is an optional licensed feature for Dell controllers. xSec is automatically enabled on the controller when you install the license. For information about the currently supported release for Funk Odyssey, please contact Juniper Networks.

xSec provides the following advantages:

•Advanced security as Layer-2 frames are encrypted and tunneled.

•Ease of implementation of advanced encryption in a heterogeneous environment. xSec is designed to support multiple operating systems and a wide range of network interface cards (NICs). All encryption and decryption on the client machine is performed by the Odyssey client while the NICs are configured with NULL encryption. This ensures that even older operating systems that cannot be upgraded to support WPA or WPA2 authentication can be secured using xSec and the Odyssey client.

•Compatible with TLS, TTLS and PEAP.

•Advanced authentication extended to wired clients allowing network managers to secure wired ports.

Securing Client Traffic

You can secure wireless or wired client traffic with xSec. On the client, install the Odyssey Client software. The xSec client must complete 802.1x authentication. to connect to the network. The client indicates the use of the xSec

Dell PowerConnect W-Series ArubaOS 6.2 User Guide

Advanced Security 670

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Dell 6.2 manual Securing Client Traffic, Advanced Security
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6.2 specifications

Dell 6.2 is an advanced enterprise solution that caters to the needs of businesses seeking robust performance and efficiency. As a part of Dell's commitment to innovation, the 6.2 series combines cutting-edge technologies and features that enhance productivity and deliver reliable computing experiences.

One of the standout features of the Dell 6.2 is its impressive processing power. Equipped with the latest Intel processors, it offers exceptional speed and multitasking capabilities. This allows businesses to run demanding applications effortlessly, making it ideal for data-intensive tasks such as data analysis, software development, and virtualization. The series also supports substantial RAM configurations, enabling users to manage extensive workloads without experiencing slowdowns.

In terms of storage, the Dell 6.2 line includes advanced SSD options that significantly boost data access speeds compared to traditional hard drives. This rapid access to information is vital for businesses that require quick retrieval of large datasets. Furthermore, the devices support RAID configurations, which enhances data redundancy and security, protecting critical business information from loss.

Connectivity is another critical aspect of the Dell 6.2 series. It includes multiple USB ports, HDMI outputs, and high-speed Ethernet options, ensuring that users can easily connect to various peripherals and networks. The integration of Wi-Fi 6 technology enables faster wireless connections, resulting in improved internet speeds and bandwidth efficiency, which is crucial in today’s increasingly connected workplaces.

Dell has also prioritized security in the 6.2 series. It features enhanced biometric authentication and advanced encryption methods, safeguarding sensitive data from unauthorized access. Additionally, the system's BIOS protection and automatic updates provide an added layer of security, ensuring that the device remains safe from emerging threats.

The design of the Dell 6.2 is not only sleek and modern but also built for durability. Its robust chassis is engineered to withstand the rigors of daily use, making it suitable for various business environments. This durability ensures that the investment in Dell 6.2 will last for years while maintaining performance integrity.

In summary, the Dell 6.2 series embodies a blend of speed, storage efficiency, connectivity, and security, making it a top choice for enterprises looking to enhance their computing capabilities. With its modern features and durable design, Dell 6.2 is positioned as a reliable partner in driving business success.
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