C# udp NAT打洞客户端1/2，可以实现不能局域网的通信，亲测

D:\Demo\udp1\WindowsFormsApplication1\WindowsFormsApplication1\obj\Debug\ResolveAssemblyReference.cache D:\Demo\udp1\WindowsFormsApplication1\WindowsFormsApplication1\obj\Debug\WindowsFormsApplication1.FrmClient.resources D:\Demo\udp1\WindowsFormsApplication1\WindowsFormsApplication1\obj\Debug\WindowsFormsApplication1.Properties.Resources.resources D:\Demo\udp1\WindowsFormsApplication1\WindowsFormsApplication1\obj\Debug\UDPClient.csproj.GenerateResource.Cache D:\Demo\udp1\WindowsFormsApplication1\WindowsFormsApplication1\bin\Debug\WindowsFormsApplication1.exe D:\Demo\udp1\WindowsFormsApplication1\WindowsFormsApplication1\bin\Debug\WindowsFormsApplication1.pdb D:\Demo\udp1\WindowsFormsApplication1\WindowsFormsApplication1\obj\Debug\WindowsFormsApplication1.exe D:\Demo\udp1\WindowsFormsApplication1\WindowsFormsApplication1\obj\Debug\WindowsFormsApplication1.pdb D:\Demo\udp1\WindowsFormsApplication1\UDPClient\obj\Debug\ResolveAssemblyReference.cache D:\Demo\udp1\WindowsFormsApplication1\UDPClient\obj\Debug\WindowsFormsApplication1.FrmClient.resources D:\Demo\udp1\WindowsFormsApplication1\UDPClient\obj\Debug\UDPClient.csproj.GenerateResource.Cache D:\Demo\udp1\WindowsFormsApplication1\UDPClient\bin\Debug\UDPClient.exe D:\Demo\udp1\WindowsFormsApplication1\UDPClient\bin\Debug\UDPClient.pdb D:\Demo\udp1\WindowsFormsApplication1\UDPClient\obj\Debug\UDPClient.Properties.Resources.resources D:\Demo\udp1\WindowsFormsApplication1\UDPClient\obj\Debug\UDPClient.exe D:\Demo\udp1\WindowsFormsApplication1\UDPClient\obj\Debug\UDPClient.pdb