Digi Connect IT 4 User Manual

Virtual Private Networks (VPN) Generic Routing Encapsulation (GRE)
Digi Connect IT® 4 User Guide
412
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
Web
1. Log into Digi Remote Manager, or log into the local Web UI as a user with full Admin access
rights.
2. Access the device configuration:
Remote Manager:
a. Locate your device as described in Use Digi Remote Manager to view and manage your
device.
b. Click the Device ID.
c. Click Settings.
d. Click to expand Config.
Local Web UI:

Digi Connect IT 4 Specifications

General

Brand	Digi
Model	Connect IT 4
Category	Network Router
Language	English