This is a detecting system writed with VB,it can be used in small LAN .

ARP模拟程序：本程序分为两个子程序，分别是arpsrc ,arptarget ；arpsrc用来模拟一台主机用来发送一个ARP的询问包，arptarget用来模拟接受ARP包的主机，对不同的ARP询问包进行处理。-ARP simulation program: This program is divided into two subroutines, namely arpsrc, arptarget arpsrc used to simulate a host to send an ARP inquiry packet, arptarget used to simulate the acceptance of ARP packet the host, asked whether the different ARP packet for processing.

通过网络嗅探可以有效地探测在网络上传输的数据包信息，并对这些信息进行分析-Through the network sniffer can effectively detect the network packet transmission information and the information analysis

一个网络抓包嗅探软件，比较简单，适合简单的学习，大家交流-Capture a network sniffer software, relatively simple, suitable for simple learning, to facilitate the exchange of

着是易语言的源码-is easy with the source language

使用wpcap写的arp工具库-Arp tools library which has used wpcap

客户端从终端接受键盘数据并把数据发送至服务端 服务端把客户端发送过来的数据执行并把结果发送至客户端 客户端和服务端数据发送增加数据包头，进行打包操作-The client from the terminal to accept the keyboard data and the data sent to the server Server to the client to send the data over the implementation and the results sent to the client Client and server data transmission to increase the data header, for packaging operations

本设计的功能是填充一个TCP数据包，并发送给目的主机。 程序具体要求如下： 1) 以命令行形式运行：SendTCP、source_ip、source_port、dest_ip、dest_port，其中SendTCP是程序名，source_ip为源端IP地址，source_port为源端口号，dest_ip为目的地址，dest_port为目的端口号； 2) 其他的TCP头部参数请自行设定； 3) 数据字段为“This is my homework of network ,I am happy ！” 4) 成功发送后在屏幕上输出“Send OK” 。 -The design features are filled with a TCP packet, and send the purpose of the host. Program specific requirements are as follows: 1) to form the command line run: SendTCP, source_ip, source_port, dest_ip, dest_port, which are SendTCP program name, source_ip client IP address as the source, source_port as the source port number, dest_ip for the purpose of the address, dest_port for the purpose of port number 2) the head of other TCP parameters at your own settings 3) data fields for the This is my homework of network, I am happy! 4) successfully sent the output on the screen after the Send OK .

IPgrab－一个详细的数据包嗅探器，它可以显示所读的每个数据包的大量详细信息，包括应用层的信息-IPgrab-a detailed packet sniffer, which can indicate the time of each packet a lot of detailed information, including application layer information

windows下的，一个网络嗅探器的源码，有一定的借鉴价值，可以构写自己的嗅探器了-under the windows, a network sniffer the source code for a certain reference value can write their own structure with a sniffer

这个是讲解如何使用ARP协议传送数据包的源代码，需要安装winpcap开发包后才可以成功运行-这 ?鍪????馊??问 ?用ARP幸?