Method for transmitting data in WLAN network

The invention relates to is used for WLAN network (1) WLAN= wireless (Wireless Local Area Network))Transmitting the data method, the method, wherein the L2 protocol layer (L2=Layer 2), is the WLAN information between terminal device (UE) and WLAN network (1) point (AP), the connecting point (AP) is connected with one or multiple data network (2,3), and method, wherein the WLAN message comprises a an SIP data authentication SIP message (SIP= Session starting Protocol (Session Starting Protocol)), Thereby butted with the point (AP) WLAN message elements to the SIP authentication data, and a display and data authentication RADIUS- and /Diameter- protocol (RADIUS= remote for forward to a user service certification (Remote Authentication In A User Service)).