Table of Contents
Advertisement
6.1.2.2
OpenVPN TAP Scenario
The term "TAP" refers to bridge mode and operates with layer 2 packets. In bridge mode, the VPN client is given an IP
address on the same subnet as the LAN resided under the OpenVPN server. Under such configuration, the OpenVPN client
can directly access the resources on the LAN. If you want to offer remote access to the entire remote LAN for VPN client(s),
you have to setup OpenVPN in "TAP" bridge mode.
As shown in the diagram above, the NTC-400 Series Router is configured as an OpenVPN TAP Client, and connects to an
OpenVPN TAP Server. Once the OpenVPN TAP connection is established, the connected TAP client will be assigned a virtual IP
(192.168.100.210) which is the same subnet as that of local subnet in the Control Centre. With such connection, the SCADA
Server in Control Centre can access remotely attached serial device(s) with the virtual IP address (192.168.100.210).
6.1.2.3
Enable OpenVPN
The OpenVPN setting allows user to create and configure OpenVPN tunnels.
To enable the OpenVPN functionality:
1
From the Security submenu select VPN and click its Open VPN tab.
2
Go to the Configuration section:
NTC-400 Series
Figure 251 – OpenVPN TAP Scenario
Figure 252 – Open VPN Configuration
215 of 359
© NetComm Wireless 2019
Advertisement
Table of Contents
