| 摘要 |
Disclosed are a data transmission method and device, said method comprising: according to authentication information of a user equipment, a local area network gateway (LGW) allocates an IP address to the user equipment, and stores the correlation of the IP address, the area networks said IP address may access, and the manner in which a secure connection is established with access network gateways of said area networks; by means of a secure tunnel, the LGW transmits data between the user equipment and the area network corresponding to the IP address of said user equipment, said secure tunnel being established according to the manner in which the secure connection is established. The present invention solves the problems, not taken into consideration in the related art, of different users accessing different area networks, and different users accessing different area networks according to allocated IP addresses. |
