Vigor3900 Series User’s Guide
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Note: This is a generic International version of the user guide. Specification,
compatibility and features vary by region. For specific user guides suitable for your
region or product, please contact local distributor.
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).
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