Session Mechanism Research Based on Agent in NetGAP

NetGAP is used to physically isolate the internal and external networks. Its session strides over both sides of the network. Based on the characteristics of agent, this paper designs several kinds of agent components with file accumulation, content inspection, file transmittance, protocol stream control and so on. Through these agent components it can easily establish a new connection, dealt with protocol events and close a connection process in a session. According to practice it indicates the session mechanism basing on agent can effectively increase the security of the internal network and keep the adaptability of network security system.