UdpDiscoveryEndpoint與廣播地址

Question

是否有可能使用Wcf UdpDiscoveryEndpoint廣播地址而不是多播？ 我試過使用廣播地址，但引發了一個異常，這是WcfDiscovery的限制嗎？

這是個例外：

System.Net.Sockets.SocketException (0x80004005): The requested address is not valid in its context 
    at System.Net.Sockets.Socket.DoBind(EndPoint endPointSnapshot, SocketAddress socketAddress) 
    at System.Net.Sockets.Socket.Bind(EndPoint localEP) 
    at System.ServiceModel.Channels.UdpUtility.BindSocket(Socket socket, IPEndPoint localEndpoint) 
    at System.ServiceModel.Channels.UdpUtility.CreateListenSocket(IPAddress ipAddress, Int32& port, Int32 receiveBufferSize, Int32 timeToLive, Int32 interfaceIndex, Boolean allowMulticastLoopback, Boolean isLoopbackAdapter) 
    at System.ServiceModel.Channels.UdpChannelListener.InitSockets(Boolean updateListenPort) 
    at System.ServiceModel.Channels.UdpChannelListener..ctor(IUdpTransportSettings settings, BindingContext context) 
    at System.ServiceModel.Channels.UdpTransportBindingElement.BuildChannelListener[TChannel](BindingContext context) 
    at System.ServiceModel.Channels.BindingContext.BuildInnerChannelListener[TChannel]() 
    at System.ServiceModel.Channels.MessageEncodingBindingElement.InternalBuildChannelListener[TChannel](BindingContext context) 
    at System.ServiceModel.Channels.TextMessageEncodingBindingElement.BuildChannelListener[TChannel](BindingContext context) 
    at System.ServiceModel.Channels.BindingContext.BuildInnerChannelListener[TChannel]() 
    at System.ServiceModel.Channels.Binding.BuildChannelListener[TChannel](Uri listenUriBaseAddress, String listenUriRelativeAddress, ListenUriMode listenUriMode, BindingParameterCollection parameters) 
    at System.ServiceModel.Description.DispatcherBuilder.MaybeCreateListener(Boolean actuallyCreate, Type[] supportedChannels, Binding binding, BindingParameterCollection parameters, Uri listenUriBaseAddress, String listenUriRelativeAddress, ListenUriMode listenUriMode, ServiceThrottle throttle, IChannelListener& result, Boolean supportContextSession) 
    at System.ServiceModel.Description.DispatcherBuilder.BuildChannelListener(StuffPerListenUriInfo stuff, ServiceHostBase serviceHost, Uri listenUri, ListenUriMode listenUriMode, Boolean supportContextSession, IChannelListener& result) 
    at System.ServiceModel.Description.DispatcherBuilder.InitializeServiceHost(ServiceDescription description, ServiceHostBase serviceHost) 
    at System.ServiceModel.ServiceHostBase.InitializeRuntime() 
    at System.ServiceModel.ServiceHostBase.OnBeginOpen() 
    at System.ServiceModel.ServiceHostBase.OnOpen(TimeSpan timeout) 
    at System.ServiceModel.Channels.CommunicationObject.Open(TimeSpan timeout) 
    at System.ServiceModel.Channels.CommunicationObject.Open() 

Answer 1

我在一個客戶的服務器有同樣的問題。事實證明，他有兩臺配置了重疊子網掩碼的網絡設備。因此udpDiscoveryEndpoint無法以上述例外開始監聽。