SharpPcap发包失败！！！！发UDP数据包

[zfrong]

SharpPcap发包失败！！！！发UDP数据包。。看看什么原因？？？？
byte[] bytes = new byte[60];

UDPPacket p = new UDPPacket(lLen, bytes);//

p.SourceHwAddress = strSouMac;
p.DestinationHwAddress = strGateWayMac;

p.SourceAddress = "201.23.12.88";
p.SourcePort = 12345;

p.DestinationAddress = "192.168.100.106";
p.DestinationPort = 9000;

p.ComputeUDPChecksum(true);

int k=0;
while(k<10000)
{
device2.PcapOpen(true, 200);
device2.PcapSendPacket(p); k++;
device2.PcapClose();
}