Dear sirs: I am looking for resource of "stateful inspection" now.please help me. I know stateful inspection module works between data link layer and network layer.It want to check some information in packets. And recorde some state information in connection table. if the first packet pass FW-1,the connection table will add a record of this session,and the later packets will pass if they are part of this session .And it is said that stateful inspection only check src/dest ip or src/dest port.stateful inspection dont't check Seq Number. I want to know if stateful inspection dont't check Seq Number,how does FW-1 know if a packet is a part of a session. what are the connecttion table record? thanks a lot ---------------------------------------------- ��ӭʹ�� 21CN �����ʼ�ϵͳ http://www.21cn.com Thank you for using 21cn.com Email system - [To unsubscribe, send mail to [EMAIL PROTECTED] with "unsubscribe firewalls" in the body of the message.]
