Chapter 18

Virtual Private Networks

Wireless networks can use virtual private network (VPN) connections to further secure wireless data from attackers. The Dell controller can be used as a VPN concentrator that terminates all VPN connections from both wired and wireless clients.

This chapterdescribes the following topics:

•"Planning a VPN Configuration" on page 271

•"Working with VPN Authentication Profiles" on page 274

•"Configuring a Basic VPN for L2TP/IPsec in the WebUI" on page 275

•"Configuring a VPN for L2TP/IPsec with IKEv2 in the WebUI" on page 279

•"Configuring a VPN for Smart Card Clients" on page 283

•"Configuring a VPN for Clients with User Passwords" on page 284

•"Configuring Remote Access VPNs for XAuth" on page 285

•"Working with Remote Access VPNs for PPTP" on page 287

•"Working with Site-to-Site VPNs" on page 288

•"Working with VPN Dialer" on page 293

Planning a VPN Configuration

You can configure the controller for the following types of VPNs:

•Remote access VPNs allow hosts (for example, telecommuters or traveling employees) to connect to private networks (for example, a corporate network) over the Internet. Each host must run VPN client software which encapsulates and encrypts traffic and sends it to a VPN gateway at the destination network. The controller supports the following remote access VPN protocols:

n Layer-2 Tunneling Protocol over IPsec (L2TP/IPsec) n Point-to-Point Tunneling Protocol (PPTP)

n XAUTH IKE/IPsec

n IKEv2 with Certificates n IKEv2 with EAP

•Site-to-site VPNs allow networks (for example, a branch office network) to connect to other networks (for example, a corporate network). Unlike a remote access VPN, hosts in a site-to-site VPN do not run VPN client software. All traffic for the other network is sent and received through a VPN gateway which encapsulates and encrypts the traffic.

Before enabling VPN authentication, you must configure the following:

•The default user role for authenticated VPN clients. See Roles and Policies on page 296for information about configuring user roles.

•The authentication server group the controlleruses to validate the clients. See Authentication Servers on page 168 for configuration details.

Dell PowerConnect W-Series ArubaOS 6.2 User Guide

Virtual Private Networks 271

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Dell 6.2 manual Planning a VPN Configuration, Virtual Private Networks
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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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