1. A wireless data network process, comprising the steps of: providing a network with prior authentication of a connected mobile node (MN) and with a network connection to a packet gateway node (PGN); establishing and using an authentication mechanism between the MN and the PGN using the network connection; establishing an encrypted channel between the MN and the PGN based on authentication established with the authentication mechanism; providing configuration data from the PGN to the MN using the encrypted channel; using the configuration data for communication to and from the MN via the PGN via the network connection or via another network connected to the PGN.