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M2M Cellular Gateway
5.5 VPN
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.
The product series supports following tunneling technologies to establish secure tunnels
between multiple sites for data transferring, including IPSec, PPTP, L2TP (over IPSec) and GRE.
Advanced functions include Full Tunnel, Tunnel Failover, Tunnel Load Balance, NetBIOS over IPSec, NAT
Traversal and Dynamic VPN.
5.5.1 Configuration
VPN Configuration
Enable VPN check box will activate all VPN related functions.
The VPN configuration allows user to enable or disable all the VPN functions of the gateway
device. The VPN enables check box must be checked to enable to allow IPSec, PPTP, L2TP and GRE
to function.
Index skipping is used to reserve slots for new function insertion, when required.
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