如何把網卡設為混合模式(能收到所有的資料包)  作者 CyberGhost
http://www.vchelp.net/itbookreview/view_paper.asp?paper_id=206    關鍵字 網卡 混合模式 資料包 Sniffer
原作者姓名 CyberGhost 
正文
使用Winsock 2.0 API函數： WSAIoctl    The Windows Sockets WSAIoctl function controls the mode of a socket.    int WSAIoctl(
  SOCKET s,
  DWORD dwIoControlCode,
  LPVOID lpvInBuffer,
  DWORD cbInBuffer,
  LPVOID lpvOutBuffer,
  DWORD cbOutBuffer,
  LPDWORD lpcbBytesReturned,
  LPWSAOVERLAPPED lpOverlapped,
  LPWSAOVERLAPPED_COMPLETION_ROUTINE lpCompletionRoutine
);    SIO_RCVALL 
Enables a socket to receive all IP packets on the network. The socket handle passed to the WSAIoctl function must be of AF_INET address family, SOCK_RAW socket type, and IPPROTO_IP protocol. The socket also must be bound to an explicit local interface, which means that you cannot bind to INADDR_ANY. 
Once the socket is bound and the ioctl set, calls to the WSARecv or recv functions return IP datagrams passing through the given interface. Note that you must supply a sufficiently large buffer. Setting this ioctl requires Administrator privilege on the local machine. SIO_RCVALL is available in Windows 2000 and later versions of Windows.     使用方法：
iErrorCode=WSAIoctl(SockRaw,SIO_RCVALL,&dwBufferInLen,sizeof(dwBufferInLen),
&dwBufferLen,sizeof(dwBufferLen),&dwBytesReturned,NULL,NULL);    記得需要要定義（platform SDK中有MsTcpIp.h頭檔）,不然會出現錯誤：
SIO_RCVALL : undeclared identifier    定義如下：
//  Copyright (c) Microsoft Corporation. All rights reserved.
#if _MSC_VER > 1000
#pragma once
#endif    /* Argument structure for SIO_KEEPALIVE_VALS */    struct tcp_keepalive {
    u_long  onoff;
    u_long  keepalivetime;
    u_long  keepaliveinterval;
};    // New WSAIoctl Options    #define SIO_RCVALL            _WSAIOW(IOC_VENDOR,1)
#define SIO_RCVALL_MCAST      _WSAIOW(IOC_VENDOR,2)
#define SIO_RCVALL_IGMPMCAST  _WSAIOW(IOC_VENDOR,3)
#define SIO_KEEPALIVE_VALS    _WSAIOW(IOC_VENDOR,4)
#define SIO_ABSORB_RTRALERT   _WSAIOW(IOC_VENDOR,5)
#define SIO_UCAST_IF          _WSAIOW(IOC_VENDOR,6)
#define SIO_LIMIT_BROADCASTS  _WSAIOW(IOC_VENDOR,7)
#define SIO_INDEX_BIND        _WSAIOW(IOC_VENDOR,8)
#define SIO_INDEX_MCASTIF     _WSAIOW(IOC_VENDOR,9)
#define SIO_INDEX_ADD_MCAST   _WSAIOW(IOC_VENDOR,10)
#define SIO_INDEX_DEL_MCAST   _WSAIOW(IOC_VENDOR,11)    // Values for use with SIO_RCVALL* options
#define RCVALL_OFF             0
#define RCVALL_ON              1
#define RCVALL_SOCKETLEVELONLY 2    更詳細請查 MSDN!!!!!!!!!    正文完