Chapter 1: Preface - Draytek vigor3900 User Manual

C h a p t e
C h a p t e
The Vigor3900 Series integrates a rich suite of functions, including NAT, firewall, VPN,
load balance, and bandwidth management capability. These products are very suitable for
providing multi-integrated solutions to SME markets.
A Virtual Private Network (VPN) is an extension of a private network that encompasses
links across shared or public networks like an Intranet. A VPN enables you to send data
between two computers across a shared public Internet network in a manner that emulates
the properties of a point-to-point private link. The DrayTek Vigor3900 Series VPN router
supports Internet-industry standards technology to provide customers with open,
interoperable VPN solutions such as X.509, DHCP over Internet Protocol Security (IPSec)
up to 500 tunnels, and Point-to-Point Tunneling Protocol (PPTP).
Vigor3900 Series User's Guide
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