3.2 Game Host Details
Under the DirectPlay 4 Protocol, the first computer that creates a DirectPlay 4 game session is designated as the game host. This server functions the same as any other game client, but it has certain additional responsibilities associated with game management. These include:
Responding to game session enumeration requests.
Accepting nascent game instances into the game session and forwarding their information to established instances.
Redistributing specific multicast requests from game clients to all game instances.