OpenVPN is a popular open-source protocol that can be run on different operating systems. Latest DrayTek Vigor routers support the OpenVPN Dial-Out function since firmware version 4.2.1. This VPN protocol can be used for encrypted tunelling with other DrayTek router, and it’s potentially compatible with other vendors.
This article demonstrates how to create an OpenVPN tunnel between two DrayTek Vigor routers compatible with firmware 4.2.1 or later. It is split into two sections: VPN Server (dial-in) settings [steps 1-7], and the VPN Client (dial-out) settings [steps 8-12].
9. Vigor Router will show a message to notify that the configuration import was successful. Click the VPN profile Index to continue setting up the VPN profile.
10. If you have not selected the profile in step 9, go to [VPN and Remote Access] > [LAN to LAN] and click an index associated with the OpenVPN profile
11. For Remote Network IP and Subnet Mask, input the IP subnet used by the VPN Server and set the Mode to Routing