调试丢失的广播数据报，这些数据报显示在wireshark中，但不显示在C#应用程序中？
我有两台机器 A1 和 A2，它们都运行相同的嵌入式代码，用于广播数据包。第三台机器 B3 是运行 C# (.NET 4.0) 应用程序的 Windows XP 机器，用于侦听这些广播。
来自 A1 的所有数据均按预期由 C# 接收，来自 A2 的 95% 的数据是通过间歇性、看似随机、丢失的 UDP 数据报接收的。
当我在 B3 上查看wireshark时，来自两台机器的所有数据包都完全按照预期到达，但是当我在收到字节后立即将字节转储到文本文件时，我发现来自B2的数据报丢失了。
为什么数据包显示在wireshark 上，但有时没有传递到我的C# 应用程序？我可以理解数据报是否有错误的标头等，但 Wireshark 按预期显示所有内容，即使对于这些缺失的标头也是如此。 Windows / .NET 是否执行 Wireshark 默认情况下不执行的某些检查？
I have two machines A1 and A2, both of which are running the same embedded code, which broadcast packets. The third machine, B3, is a Windows XP box running a C# (.NET 4.0) app, which listens for those broadcasts.
All of the data from A1 is received by the C# as expected, 95% of the data from A2 is received with intermittent, seemingly random, lost UDP datagrams.
When I look on wireshark on B3, all of the packets from both machines arrive exactly as expected, but when I dump the bytes to a text file immediately after receiving them, I see that datagrams from B2 are missing.
How can it be that a packet is displayed on wireshark, but does not get passed to my C# app, some of the time? I could understand if the datagram had bad headers, etc., but Wireshark shows everything as expected, even for these missing ones. Does Windows / .NET perform some check that Wireshark does not by default?
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我建议将 B2 流转储到文件中，然后直接将其重播到您的应用程序（如果可能，使用本地应用程序）。您应该受益于持续的数据流，以便（希望）缩小有问题的部分。
I would recommend dumping the B2 stream into a file, and then replaying it directly to your app (using a local app, if possible). You should benefit from having a constant data stream in order to (hopefully) narrow down the problematic part.