摘要
介绍了基于 TCP/ IP协议的组播通信模型 ,说明了 Winsock2对 IP组播的支持 ,在局域网环境设计并实现了活动图像 IP组播系统 .
This paper introduces the multicast communication model based on TCP/IP protocol,illustrates the support to IP multicast by Winsock2, and developes an active image IP multicast system in the local area network.