| 摘要 |
PURPOSE: A method for giving a packet data service in a GPRS network is provided to supply receiving subscriber information to a DNS server, and to request session establishment as a prescribed port number, thereby easily transmitting packet data to an internal network from an external network. CONSTITUTION: The first host(310) requests the first subscriber information to a DNS server(320)(S301). The DNS server(320) provides the first subscriber information to the first host(310)(S302). The first host(310) transmits a session established request to a GGSN(331)(S303). The GGSN(331) performs a network initialization PDP context procedure with an IMSI(International Mobile Subscriber Identity) value(S304). If a GTP session is established, the GGSN(331) transmits a session established response message to an IP address of the first host(310)(S305). The first host(310) recognizes a session establishment, and transmits traffic data to an IP address of the second host(S306). |
