GRE Tunnel configuration examples

From Teltonika Networks Wiki

Introduction

Generic Routing Encapsulation (GRE) is a tunneling protocol that can encapsulate a wide variety of network layer protocols inside virtual point-to-point links over an Internet Protocol network.

This article provides an extensive configuration example with details on how to create a tunnel connection between two GRE Tunnel instances, both of which configured on RUTxxx routers.

Configuration overview and prerequisites

Before we begin, let's overview the configuration that we are attempting to achieve and the prerequisites that make it possible.

Prerequisites:

  • Two RUTxxx routers of any type (excluding RUT850)
  • Both routers must have a Public Static or Public Dynamic IP addresses
  • At least one end device (PC, Laptop, Tablet, Smartphone) to configure the routers

Configuration scheme:

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