Manner and the device in order to treat Internet protocol transmission

摘要

Manner and the device for the data packet transmission in the communication system. The packet includes, Internet protocol (Internet Protocol and IP) destination address and the network access identifier (Network Access Identifier and NAI) with is received in the gate way. The map it does the gate way, to the local network which is supported NAI which is received, the network address converter (Network Address Translator and NAT) by. The gate way, converts destination address, to NAT address of local network. Furthermore adding, the gate way adds also port number, NAT that tries can identify the receiving believer of target. When the mobile station, sends destination request to the occasion where it arrives inside local network, mapping inside the gate way generates, is maintained. In one execution configuration, register request, session start protocol (Session Initiation Protocol and SIP) is the register.