Ipsec Vpn Overview - Alcatel-Lucent OmniAccess 700 Cli Configuration Manual

Release versions: 2.2, 2.2-r02, 2.3

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VPN is basically a private network that uses a public network (usually the Internet)

to connect remote sites or users together. Instead of using a dedicated, real-world

connection such as leased line, a VPN uses "virtual" connections routed through

the Internet from the company's private network to the remote site or employee.

With the rapid growth of Internet access and bandwidth availability across the

globe, the need for security has almost become inevitable. But now, with the

evolution of security through VPN's, this is possible and gives the capability to

connect the private offices and users to use any untrusted IP network for secure

interconnections through this "virtual" mode. This medium of communication also

worked out to be highly attractive as a replacement to the private leased circuits.

Using VPN, corporates will be able to leverage on an ISP's service, providing

cost-effective:

Office to office connectivity

Road warrior connectivity access

Extranets with service agents, partners, etc.

Secure connectivity from home to the office network.

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Figure 25: General VPN Usage

CLI Configuration Guide

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IPsec VPN Overview

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