| 摘要 |
<p>A method and an apparatus for data transmission is provided by this invention, wherein the method for data transmission includes: obtaining field information of a translated data message; matching the obtained field information with a recorded rule; if the match is successful, determining, according to the recorded rule, a bearer corresponding to the data message; transmitting the data message via the determined bearer. And a network address and port translation (NAPT) device is also provided, said device including: a reception unit, used for receiving data messages transmitted by a user device; a translation unit, used for translating the source port number of the data message received by the reception unit to a reproduced port number; a transmission unit, used for transmitting the translated data message to a mobile terminal.</p> |
