UdpAnySourceMulticastClient.BlockSource(IPAddress) Method



This API is now obsolete.

Blocks a source so that multicast packets originating from it are no longer received.

 void BlockSource(System::Net::IPAddress ^ sourceAddress);
[System.Obsolete("This API supports the .NET Framework infrastructure and is not intended to be used directly from your code.", true)]
public void BlockSource (System.Net.IPAddress sourceAddress);
member this.BlockSource : System.Net.IPAddress -> unit
Public Sub BlockSource (sourceAddress As IPAddress)



The address of the source to block.



The multicast group has not yet been joined.

An error occurred when attempting to access the socket.


The BlockSource method blocks multicast packets originating from a specified source address from being received. The client must have completed a join to the multicast group.

The sourceAddress parameter may be either an IPv6 or IPv4 address, but the sourceAddress parameter must match the address family of the multicast group that the client joined.

The method specified in the callback parameter is invoked when a packet has received.

If there is a socket failure while performing the block source operation, a SocketException is thrown. The error received is specified as a member of the SocketError enumeration.

Applies to