IP multicast group key management is essential for the IP multicast security.

IP多播组密钥管理问题是IP多播安全的核心问题.

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The basic service permits a source to send datagrams to all members of a multiCAst group.

基本的服务是让源发送数据包给多点发送组的所有成员.

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It applies on - demand procedures to dynamically build routes and maintain multicast group membership.

它是只有在需要发送数据包时动态地建立路由和保持组成员关系.

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