| 摘要 |
An apparatus and a method for synchronizing a Security Association (SA) state as SA information of a mobile communication terminal is lost are provided. In the method, an IPSec tunnel is established by performing an SA procedure with a server, and a secure port is obtained. A service request message is transmitted to the server via the obtained secure port, and an unsecure port is opened. When a service response message is received from the server, it is determined whether the service response message is received via the unsecure port. When the service response message is received via the unsecure port, the SA procedure is re-performed. Therefore, the terminal may use a service through a secure network without interruption, and reduce a waste of resources by avoiding unnecessary retransmission of a message for requesting a service. |
