Abstract: Techniques are provided for transmitting data securely across virtual private network (VPN) connections. A first VPN connection is initiated between a first device and a second device. The second device selects a first communication protocol to be used for the first VPN connection with the first device. The first device generates session identification data associated with the first VPN connection and sends the session identification data to the second device over the first VPN. The second device receives the session identification data and stores it. The second device determines when the first VPN connection has been disrupted. The second device then selects a second communication protocol and initiates a second VPN connection using the second communication protocol with the first device. The second device transmits the session identification data to the first device, and the first device associates the second VPN connection with the first VPN connection using session identification data.

Abstract: Techniques are provided for transmitting data securely across virtual private network (VPN) connections. A first VPN connection is initiated between a first device and a second device. The second device selects a first communication protocol to be used for the first VPN connection with the first device. The first device generates session identification data associated with the first VPN connection and sends the session identification data to the second device over the first VPN. The second device receives the session identification data and stores it. The second device determines when the first VPN connection has been disrupted. The second device then selects a second communication protocol and initiates a second VPN connection using the second communication protocol with the first device. The second device transmits the session identification data to the first device, and the first device associates the second VPN connection with the first VPN connection using session identification data.

Abstract: A wireless communications system has a plurality of base stations, a plurality of mobile vehicular repeater units, and a plurality of portable units. In a typical context, each mobile vehicular repeater unit is associated with at least one portable unit, and both may be associated with a single user. The object is for the user(s) to be able to access the wireless network for any geographic location. In cases where a geographic area is shadowed from a base station and communication directly between the portable unit and the base station is not possible, it is beneficial to use the mobile vehicular repeater unit in accordance with an extended coverage mode of operation, to relay communications between the portable unit and the base station. A mobile vehicular repeater unit constructed according to the present invention enters the extended coverage mode of operation in response to receipt of an access request, transmitted by a first of the plurality of portable units.