SECURITY DEVICE DETECTION METHOD FOR IMPLEMENTING TCP PROTOCOL STACK INFORMATION LEAKAGE ON BASIS OF ALG PROTOCOL

摘要

Disclosed is a security device detection method for implementing TCP protocol stack information leakage on the basis of an ALG protocol, comprising the following steps: S1. a client sends to a server a detection message that contains an ALG protocol stack; S2. the server responds to the detection message, wherein a response packet of the server in response to the detection message contains basic information of detected software and protocol stack information of a security device; and S3. the client receives the response packet. A detection message that contains a protocol stack of a protection device is constructed so that the protection device returns corresponding protocol stack information, thereby identifying a protection device that is deployed transparently, and achieving the goal of truly identifying a network device.