Vivotek ND9541P User Manual page 151

VAST2 auto connection
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 effort-
lessly using the traversal methodology.
Fetch CA/
Cert/Key
VAST
Camera 01 Camera 03
Camera 02
Camera 05 Camera 06
Camera 04
RESTful
Camera 07 Camera 08 Camera 09
API Server
Tunnel
message
The sample installation screens are shown below:
VIVOTEK - Built with Reliability
Port
Forwarding
Internet
Port
Forwarding
Register
Substation
Establish
VPN tunnel
NVR
User's Manual - 151