I wish to have two classes, a server class and a client class. The server class should recieve the IP address and Port number of each new client and store them in a list. It should supply each of the clients with a list of connected clients and their IP addresses. The clients could then communicate with each other using TCP connections.
The catch is that the clients won't know what the IP address of the server is. The entire program will however run on a local area network. My guess is that it needs some sort of UDP broadcast, but every time I try to impliment this it doesn't work unless the two instances of the program are running on the same computer.
The application would be installed by clients with limited computing knowledge so it should just be a case of installing the program on all the computers and plugging in to the network.
If anyone has a reliable, clear implimentation of this using C#.net 3.5 or earlier it would be much appreciated.
You may or may not want to use the Lidgren network library, but the source code is available and it does udp broadcast for server discovery for you to check out.
Not sure if this will help you - but you could use WCF and .NET 3.5
来源：https://stackoverflow.com/questions/2383426/network-discovery-of-an-application-for-peer-to-peer-network