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VIVOTEK - Built with Reliability
User's Manual - 141
NAT-traversal with OpenVPN
You can select the "VAST Server with OpenVPN" option when installing the VAST server. A remote
connection from NVR via a 3G/4G/LTE network can be made through an OpenVPN tunnel. When the
OpenVPN option is selected, an OpenVPN server will be installed with the VAST server.
HMAC authentication and TLS encryption over an encrypted UDP connection are made effortlessly us-
ing the traversal methodology.
The sample installation screens are shown below:
VAST
Camera 01
Camera 02
Camera 03
Camera 04
Camera 06
Camera 05
Camera 07
Camera 08
Camera 09
Internet
HTTPS connection
OpenVPN tunnel
Port
Forwarding
Establish
VPN tunnel
Port
Forwarding
Register
Substation
Fetch CA/
Cert/Key
RESTful
API Server
Tunnel
message
NVR
Default Port: 3443
Default Port: 3939
VAST2 auto connection
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