Digi IX14

Virtual Private Networks (VPN) Generic Routing Encapsulation (GRE)
IX14 User Guide
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Generic Routing Encapsulation (GRE)
Generic Routing Encapsulation (GRE) is an IP packet encapsulation protocol that allow for networks
and routes to be advertized from one network device to another. You can use GRE to encapsulate a
wide variety of network layer protocols inside virtual point-to-point links over an IP network.
Configuring a GREtunnel
Configuring a GREtunnel involves the following items:
Required configuration items
n
A GRE loopback endpoint interface.
n
GRE tunnel configuration:
l
Enable the GRE tunnel.
The GRE tunnels are enabled by default.
l
The local endpoint interface.
l
The IP address of the remote device/peer.
Additional configuration items
n
A GRE key.
n
Enable the device to respond to keepalive packets.
Task One: Create a GRE loopback endpoint interface
WebUI
1. Log into the IX14 WebUI as a user with full Admin access rights.
2. On the menu, click System. Under Configuration, click Device Configuration.
The Configuration window is displayed.