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Virtual Private Network Services 185

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Basic Terms and Concepts

Introduction to

Virtual Private

Networks

Virtual Private Networks (VPN) provide an easy, affordable, and secure

means for businesses to conduct operations and provide network

connectivity to all offices and partners. Using 3Com’s intuitive Web

interface, a secure connection may be established between two or more

sites.

Data that is intended for delivery to a remotely connected site is

automatically encrypted using the VPN’s accelerated cryptographic

processor. The data is delivered via the Web and decrypted at the

intended destination.

The SuperStack 3 Firewall VPN implementation uses the IPSec VPN

standard. This guarantees compliance with other VPN products, such as

3Com PathBuilder 400 and Check Point Firewall-1 that adhere to the

same standard.

VPN Applications The following illustration shows the VPN connections between the offices

and users of a simple company. In this example all external connections

are made using VPN tunnels across the Internet.

Figure 65

Virtual Private Networks Applications

Internet

Head Office

Mobile

Home Office

Branch Office

VPN TUNNEL

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HP SuperStack Firewall Series Manual do Utilizador Página 185