Refer to multicast Addresses for multicast group address assignment.

参考Multicast Addresses获取多播组地址分配。

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DataPort: the destination port that is used in combination with the multicast group address; this defaults to 34343.

dataPort：用于结合多播组地址的目标端口，默认是34343。

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Multicast technology includes a number of aspects, such as multicast group, multicast address, multicast protocols, multicast reliability, multicast security, etc.

组播技术包括了组播组、组播地址、组播协议、组播可靠性和组播安全性等很多方面的内容。

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