The Firebox must use Fireware v11.7.4 or higher.Requirementsīefore you download the Mobile VPN with SSL client profile, make sure your Firebox configuration meets these requirements: In Fireware v12.3 or higher, Mobile VPN with SSL supports two-factor, challenge-response authentication for native OpenVPN clients. Users can then import the profile into the OpenVPN app. To configure the OpenVPN app, users can download a Mobile VPN with SSL client profile from the Firebox. For example, users can install OpenVPN Connect for Android or iOS, which is available from, the Google Play app store, or the Apple app store. Your users can make an SSL VPN connection to the Firebox with an OpenVPN client. Use Mobile VPN with SSL with an OpenVPN Client