# Peer/server discovery Peer discovery is the process of clients detecting what servers are available. Discovery requests can be made in two ways; locally as a broadcast, which will send a signal to all peers on your subnet. Secondly you can contact an ip address directly and query it if a server is running. Responding to discovery requests are done in the same way regardless of how the request is made. Here's how to do on the client side; ie. the side which makes a request:
    // Enable DiscoveryResponse messages
    config.EnableMessageType(NetIncomingMessageType.DiscoveryResponse);
    // Emit a discovery signal
    Client.DiscoverLocalPeers(14242);
This will send a discovery signal to your subnet; Here's how to receive the signal on the server side, and send a response back to the client:
    // Enable DiscoveryRequest messages
    config.EnableMessageType(NetIncomingMessageType.DiscoveryRequest);
    // Standard message reading loop
    while ((inc = Server.ReadMessage()) != null)
    {
        switch (inc.MessageType)
        {
            case NetIncomingMessageType.DiscoveryRequest:
                // Create a response and write some example data to it
                NetOutgoingMessage response = Server.CreateMessage();
                response.Write("My server name");
                // Send the response to the sender of the request
                Server.SendDiscoveryResponse(response, inc.SenderEndpoint);
                break;
When the response then reaches the client, you can read the data you wrote on the server:
    // Standard message reading loop
    while ((inc = Client.ReadMessage()) != null)
    {
        switch (inc.MessageType)
        {
            case NetIncomingMessageType.DiscoveryResponse:
                Console.WriteLine("Found server at " + inc.SenderEndpoint + " name: " + inc.ReadString());
                break;