A CCESS G ATEWAY90 System Administration5. In the Force Update field, click Submit and Force Update to to force an immediateupdate to the DDNS.Note that too many updates may be considered abuse by the DDNS vendor.Alternatively, click Submit to save the settings or Reset to clear the changes and returnthe settings to the previous state.GRE Tunneling {Gre Tunneling}Use the following procedure to set the GRE Tunneling options.1. From the Web Management Interface, click Configuration, then Gre Tuneling. The GRETuneling screen appears:2. Click the checkbox for GRE Tunneling to enable this feature.3. Enter the VPN Concentrator IP Address. This is the IP address of the remote server.4. Enter the GRE Interface IP Address. This is the IP of the local GRE interface on theAccess Gateway.5. Enter the GRE Interface Subnet Mask. This is the subnet mask for the GRE connection.6. Enter the GRE Interface Default Gateway. This is the IP address of the GRE interface ofthe remote host.7. When finished, you must reboot the system for the new settings to take effect. Click thecheck box for Reboot after changes are saved? to reboot the system after saving yourchanges.8. Click Submit to save your changes and reboot the system, or click Reset to reset all thevalues to their previous state.