Netgear D6400 – AC1600 WiFi VDSL/ADSL Modem Router—802.11ac Dual Band Gigabit User Manual

Unzip the configuration files that you downloaded and copy them to the folder where the 

VPN client is installed on your device. 

For a client device with Windows 64-bit system, the VPN client is installed at 
C:\Program files\OpenVPN\config\ by default.

For a client device with Windows, modify the VPN interface name to NETGEAR-VPN: 
a. In Windows, select Start > Control Panel > Network and Internet > Network 

Connections.

b.  In the local area connection list, find the local area connection with the device name 

TAP-Windows Adapter.

c.  Select the local area connection and change its name (not its device name) to 

NETGEAR-VPN.

If you do not change the VPN interface name, the VPN tunnel connection will fail.

After you set up the modem router to use VPN and install the OpenVPN application on your 

computer, you can open a VPN tunnel from your computer to your modem router over the 
Internet.

For the VPN tunnel to work, the local LAN IP address of the remote router must use a 
different LAN IP scheme from that of the local LAN where your VPN client computer is 
connected. If both networks use the same LAN IP scheme, when the VPN tunnel is 
established, you cannot access your home router or your home network with the OpenVPN 
software.

The default LAN IP address scheme for the modem router is 192.x.x.x. The most common IP 
schemes are 192.x.x.x, 172.x.x.x, and 10.x.x.x. If you experience a conflict, change the IP 
scheme either for your home network or for the network with the client VPN computer. For 
information about changing these settings, see 

203.



Launch the OpenVPN application with administrator privileges.