FIELD: information technology.
SUBSTANCE: following steps are executed: requesting authentication from an authorisation entity in a wireless communication system; and receiving an authentication message from the authorisation entity if the authentication is successful, wherein the authentication message contains authorisation to use at least one internet protocol version to establish at least one secure tunnel for communication.
EFFECT: possibility of simultaneous operation of a mobile station in both IPv4 and IPv6.
24 cl, 9 dwg
