ICR-1601
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4. Security
4.1 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 different tunneling technologies to establish secure tunnels between
multiple sites for data transferring, such as IPSec, OpenVPN, L2TP (over IPSec), PPTP and GRE. Besides,
some advanced functions, like Full Tunnel, Tunnel Failover, NetBIOS over IPSec, NAT Traversal are also
supported.
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