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Created page with "==Introduction== Generic Routing Encapsulation (GRE) is a tunneling protocol that can encapsulate a wide variety of network layer protocols inside virtual point-to-point link..."
==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, one of which is configured on RUTxxx router and the second one on CISCO device.

==Prerequisites==

You will need:

* One RUTxxx router
* One Cisco router
* A PC to configure the routers
* Both routers must have a Public Static or Public Dynamic IP addresses

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