L2 LAN bridging over internet using L2TPv2+EoIP

The information on this page is updated in accordance with 00.07.03 firmware version.

Introduction

In this configuration example we will use L2TP with Ethernet over IP (EoIP) to bridge LAN interfaces between MikroTik and Teltonika devices. EoIP is a MikroTik RouterOS protocol based on GRE RFC 1701 that creates an Ethernet tunnel between two routers on top of an IP connection. The EoIP tunnel may run over the IPIP tunnel, PPTP tunnel, or any other connection capable of transporting IP.

Topology

Placeholder

Prerequisites

• MikroTik device(with L2TP and EoIP support) with Public IP (in this example we use hAP lite TC)
• Teltonika router or Gateway with Public IP (in this example we use RUTX11)
• Firmware with EoIP for Teltonika device
• A computer for testing and configuring the setup

Configuration of the Teltonika Device

From the Teltonika router, we will configure L2TP Client, EoIP, and firewall rules in order to achieve a working setup.

L2TP configuration

We will start by configuring the L2TP client. Open your device's WebUI and navigate to Services → VPN → L2TP, add a new L2TP client, once the configuration window opens, configure the client accordingly:

1. Enable the configuration
2. Server - input the MikroTik Public IP here
3. Username - username configurated on MikroTik server
4. Password - password configurated on MikroTik server 5.
5. Save the configuration