OpenVPN traffic split

Introduction

OpenVPN is an open-source software application that implements virtual private network (VPN) techniques for creating secure point-to-point or site-to-site connections in routed or bridged configurations and remote access facilities.

This article provides a guide on how to configure an OpenVPN client on a RUTxxx router in such a way that a part of the router's LAN clients reach the Internet through the OpenVPN server (web proxy) and the other part reaches the Internet through the router's WAN (mobile, wired or WiFi connection). It should also be noted that this guide is aimed at more advanced users and, therefore, skips some of the more self-explanatory steps in order to preserve the overall coherence of the article. For example, the step-by-step configuration of the OpenVPN client instance will be left out and only comments on certain relevant parameters will be provided. If you feel this lack of information impedes your ability to configure the setup, we suggest you check out our separate configuration guides on How to generate TLS certificates? and OpenVPN configuration examples first and return to this article then.