User's Manual
WiFiBroadbandBG
BDE761AM-001 User Manual 77
3.2.3 VPN Setup
A virtual private network (VPN) extends a private network across a public network, such
as the Internet. It enables a computer to send and receive data across shared or public
networks as if it were directly connected to the private network, while benefitting from the
functionality, security and management policies of the private network. This is done by
establishing a virtual point-to-point connection through the use of dedicated connections,
encryption, or a combination of the two. The tunnel technology supports data
confidentiality, data origin authentication and data integrity of network information by
utilizing encapsulation protocols, encryption algorithms, and hashing algorithms.
3.2.3.1 VPN-IPSec
1. VPN-IPSEC: You could trigger the function of VPN-IPSEC if you click “enable”.
2. Netbios over IPSEC: If you would like two LAN to receive the Netbios from
Network Neighborhood, you have to click “enable”.
3. NAT Traversal: Some NAT router will block IPSec packets if it doesn’t support
IPSec pass-through. If you connect to another NAT router which doesn’t support
IPSec pass-through at WAN side, you need to activate this option.
4. Max. number of tunnels: The device supports up to 32 IPSec tunnels. You can