wireshark（
http://www.wireshark.org/）是我經(jīng)常用到的抓包工具，這對(duì)于網(wǎng)絡(luò)程序的調(diào)試至關(guān)重要，特別是客戶端人員和服務(wù)端人員都認(rèn)為自己的代碼沒(méi)問(wèn)題時(shí)，wireshark本身是開源的，在windows平臺(tái)下基于 winpcap（
http://www.winpcap.org/）開發(fā)的，安裝wireshark的時(shí)候，會(huì)提示在線安裝winpcap，今天在筆記本上用VS2008,編譯了Examples-pcap下面的basic_dump和basic_dump_ex，不曾想到的是抓不到包，甚是奇怪，因?yàn)橛脀ireshark抓包是可以的，因此懷疑是不是哪個(gè)參數(shù)設(shè)施不對(duì)，終于比對(duì)wireshark，得出結(jié)論：將pcap_open_live的第四個(gè)參數(shù)設(shè)為0，即不能打開混雜模式，
if ((adhandle= pcap_open_live(d->name, // name of the device
65536, // portion of the packet to capture.
// 65536 grants that the whole packet will be captured on all the MACs.
0, // promiscuous mode (nonzero means promiscuous)
1000, // read timeout
errbuf // error buffer
)) == NULL)
{
fprintf(stderr,"\nUnable to open the adapter. %s is not supported by WinPcap\n", d->name);
/* Free the device list */
pcap_freealldevs(alldevs);
return -1;
}