From the Physical drop-down list, select External. The Gateway Endpoint Settings dialog box opens. In the Gateway Endpoint section, click Add. From the drop-down list, select String-Based. In the adjacent text box, type the pre-shared key. In the Credential Method section, select Use Pre-Shared Key.
From the Gateway Address Family drop-down list, select IPv4 Addresses. From the Remote Endpoint Type drop-down list, select Cloud VPN or Third-Party Gateway. In the Interface Name text box, type a name to identify this BOVPN virtual interface. The BOVPN Virtual Interfaces configuration page opens. To configure a BOVPN virtual interface connection on the Firebox: This diagram shows the topology for a BOVPN virtual interface connection between a Firebox and a Dell SonicWall TZ400. The hardware and software used in this guide include: