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Virtual Private Networks (VPN)
3. Click Network > Interfaces.
4. For Add Interface, type a name for the GRE loopback endpoint interface and click .
5. Enable the interface.
New interfaces are enabled by default. To disable, or to enable if it has been disabled, click
Enable.
6. For Interface type, select Ethernet.
7. For Zone, select Internal.
8. For Device, select Ethernet: Loopback.
9. Click to expand IPv4.
10. For Address, enter the IP address and subnet mask of the local GRE endpoint, for example
10.10.1.1/24.
11. Click Apply to save the configuration and apply the change.
Command line
1. Log into the IX20 command line as a user with full Admin access rights.
Depending on your device configuration, you may be presented with an Access selection
menu. Type admin to access the Admin CLI.
2. At the command line, type config to enter configuration mode:
> config
(config)>
3. Add the GRE endpoint interface. For example, to add an interface named gre_endpoint:
(config)> add network interface gre_interface
(config network interface gre_interface)>
4. Set the interface zone to internal:
(config network interface gre_interface)> zone internal
(config network interface gre_interface)>
5. Set the interface device to loopback:
(config network interface gre_interface)> device /network/device/loopback
(config network interface gre_interface)>
6. Set the IP address and subnet mask of the local GRE endpoint. For example, to set the local
GRE endpoint's IP address and subnet mask to 10.10.1.1/24:
(config network interface gre_interface)> ipv4 address 10.10.1.1/24
(config network interface gre_interface)>
IX20 User Guide
Generic Routing Encapsulation (GRE)
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