now a room at the mainframe has reached a certain amount, network management, often need to determine the network address of the host state activities. The goal is to design procedures, the use of the ICMP request and sent back to send back response designated network to discover the activities of the mainframe. The design of the main idea is to use data packet ICMPECHO designated Wangduanna to detect the activities of the mainframe. The specific method is : Send a simple ICMPECHO (Type 8) data packets to the target host. If ICMPECHOReply (ICMPtype0) sees a data packet, Note mainframe is survival. If no preliminary judgment on the mainframe are not online or use of certain filtration equipment filtering ICMP inefficiency Y.

scanhost.cpp
scanhost.doc

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