DG-LB1054UV User Manual
72
3.2.3.1 IPSec
Internet Protocol Security (IPSec) is a protocol suite for securing Internet Protocol (IP)
communications by authenticating and encrypting each IP packet of a communication session.
IPSec includes protocols for establishing mutual authentication between agents at the
beginning of the session and negotiation of cryptographic keys to be used during the session.
3.2.3.1.1
IPSec VPN Tunnel Scenarios
There are some common IPSec VPN connection scenarios as follows:
Site to Site
Description: The unit establishes IPSec VPN tunnels with security gateway in head
quarter or branch offices. Either local or remote DG-LB1054UV gateway which can be
recognized by a static IP address or a FQDN can initiate the establishment of an IPSec
VPN tunnel
.
Two peers of the tunnel have their own Intranets and the secure tunnel
serves between these two subnets of hosts for data communication.
Dynamic VPN
Description: DG-LB1054UV supports remote peers without fixed IP address to establish
an IPSec VPN tunnel with itself. The remote peer can be a client host or a network site
with its Intranet. It must be noted that the remote peer has to initiate the tunnel
establishing process first.
