Create or edit a GRE tunnel

Select Create New to open the Create Gre Tunnel page.

Select a GRE tunnel and then click Edit to open the Edit Gre Tunnel page.

Configure the following settings in the Create Gre Tunnel page or Edit Gre Tunnel page and then click OK:

Name	Enter the name to identify the GRE tunnel. You cannot edit the name after you create the GRE tunnel.
Source Interface	Name of the source interface. There is no default value.
Remote Gateway	IP address of the remote gateway. The default is 0.0.0.0.
Local Gateway	IP address of the local gateway. The default is 0.0.0.0.
Sequence Number Reception	Enable or disable whether sequence numbers are validated in the received GRE packets. The default is disable.
Checksum Transmission	Enable or disable whether checksums are included in transmitted GRE packets. The default is disable.
Checksum Reception	Enable or disable whether checksums are validated in received GRE packets. The default is disable.
Key Outbound	Enter the key to be included in transmitted GRE packets. The range is 0 to 4,294,967,295. The default is 0.
Key Inbound	Enter the key that is required to be in received GRE packets. The range is 0 to 4,294,967,295. The default is 0.
Keepalive Interval	Specify how many minutes pass before a GRE keep-alive message is sent. The range is 0 to 32,767. Enter 0 to disable this feature. The default is 0.
Keepalive Failtimes	How many times the GRE keep-alive message fails before the GRE connection is considered down. The range is 1-255. The default is 10.
API Preview	The API Preview allows you to view all REST API requests being used by the page. You can make changes on the page that are reflected in the API request preview. This feature is not available if the user is logged in as an administrator that has read-only GUI permissions.

To use the API Preview:

1. Click API Preview. The API Preview pane opens, and the values for the fields are visible (data). If a new object is being created, the POST request is shown.
2. Enable Show modified changes only to show the modified changes instead of the full configuration in the preview.
3. Click Copy to Clipboard to copy the JSON code shown on the preview screen to the clipboard.
4. Click Close to leave the preview.