8 - 22 CHAPTER 8: A DVANCED CONFIGURATION FEATURES6 Select a data compression algorithm from the Compression drop-downmenu. The default value is Auto.7 Select a workstation from the Workstation list. To select all workstationson the LAN subnet of the OfficeConnect Gateway, click the AllWorkstations checkbox.8 Click Apply. Then click Finish on the next screen that is displayed to accessthe VPN Route Configuration page.9 Configure a route for your VPN as described in the VPN RouteConfiguration section of this chapter.To Create a VPNConfiguration usingIPSecThe IPSec Tunneling Protocol (IPSec) is a widely used VPN tunnelingprotocol that provides security services at the IP layer by enabling asystem to select required security protocols, determine the algorithm(s) touse for the service(s), and put in place any cryptographic keys required toprovide the requested services.To create a VPN tunnel using the IPSec protocol, perform the followingsteps:1 Select Create from the Edit Mode drop-down menu.2 Enter a name for the VPN Tunnel you want to create in the VPN Namefield.3 Select IPSEC in the VPN Protocol drop-down menu.4 Enter the Shared Secret (password) for the VPN Tunnel in the SharedSecret field.5 Select an attachment layer (WAN Interface or PPP Profile) for the VPNtunnel from the Attachment Layer drop-down menu. The VPNConfiguration page will dynamically change based on your selection.If you selected WAN Interface as your attachment layer, select theappropriate WAN interface in the Attachment Interface drop-downmenu.If you selected PPP Profile as your attachment layer, select the appropriatePPP profile in the Attachment Profile drop-down menu.A PPP Profile must exist. If you have not created one, the system willprompt you to create one.6 Enter the IP address of the Remote Security Gateway in the RemoteGateway field.
