User's Guide

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TRENDnet User’s Guide

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Virtual Private Networking (VPN)

Creating a Virtual Private Network (VPN)

Network > VPN

What is a VPN?

A VPN provides secure communications typically over the Internet by creating a secure

tunnel between two or more VPN routers (gateways) also known as a site-to-site VPN or

between a single client computer and a VPN router (gateway) also known as a client-

server VPN.

On your router, the following types of tunnels can be created:

• Site-to-Site VPN – Connects two or more VPN routers (gateways) allowing the

LAN network from each router to securely communicate to each other over the

Internet. Tunneling Methods: IPsec

• Client-Server VPN – A single client computer or device with VPN client software

installed connects to a VPN router (gateway) allow the single client computer

or device to securely communicate to the LAN network of the VPN router over

the Internet. Tunneling Methods: IPsec/SSL(OpenVPN)/PPTP/L2TP/L2TP with

IPsec

Tunneling methods supported by your router:

• SSL (Secure Socket Layer) VPN – This type of VPN can be used for Client-Server

VPN only. There is support for both Layer 3 and Layer 7 network access with

SSL VPN but your router only supports Layer 3 access. Additionally, your router

utilizes the use of OpenVPN® for SSL VPN. The third party software client is

available for free download using the following link for both Windows® and

Linux operating systems https://openvpn.net/index.php/open-

source/downloads.html.

• IPsec (Internet Protocol Security) VPN – This type of VPN can be used for

either Site-to-Site VPN or Client-Server VPN, however, the most common

application for this type is a Site-to-Site VPN. This type of VPN can provide

highest degree of security. For a Client-Server VPN, typically, a third party VPN

client software is required to be installed and configured and can be difficult

when installing and configuring on VPN client computers. This VPN type can

provide the highest degree of security.

• PPTP (Point-to-Point Tunneling Protocol) VPN – This type of VPN can be used

for Client-Server VPN only however both server mode and client mode are

supported on your router. Most computer operating systems already include a

pre-installed PPTP VPN client software that can be easily configured which

eliminates the need for an additional third party VPN client software to be

purchased and installed. Since it provides less security overall than IPsec VPN, it

is not recommended for a Site-to-Site VPN.

• L2TP (Layer 2 Tunneling Protocol) VPN – This type of VPN is very similar to

PPTP VPN as it is most commonly used for a Client-Server VPN, pre-installed on

most computer operating systems and easy to configure, and provides less

overall security than IPsec VPN. Most of the current operating systems with

L2TP VPN client software pre-installed use L2TP VPN in conjunction with IPsec

VPN to improve the overall security provided. This router does not support the

L2TP over IPsec VPN method.

Important Note: For any tunneling or VPN method used, to avoid IP address conflict and

to ensure connectivity, it is required that each end (LAN IP network or single client) of the

VPN tunnel is configured with a different IP network or subnet.