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Netbios Messages sent before UDP packet

I am having problems using UDPClient.Send() in System.Net.Sockets. Each time
I make the call to the function, there is a significant delay from when the
code is executed to when the packet actually goes out. I took a look at the
traffic and found that each time the UDPClient.Send() call was made, two UDP
netbios messages go out on port 137. The device on the other end responds
each time with an ICMP. After two attempts, the .Send message gives up, then
forwards the message. My device then responds.

The problem is, the huge delays in transmission are really throwing off my
timing. Why is the Send command tring to send out netbios messages? Can I
disable that? UDP is supposed to be connectionless. I just want to send
data with minimum delays!
Nov 17 '05 #1
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