Although it is should be possible to send data packets to a multicast group regardless of membership, it is often better to join a group before sending to it for reasons I won't venture into.
Although it is should be possible to send data packets to a multicast group regardless of membership, it is often better to join a group before sending to it for reasons I won't venture into.
虽然不考虑成员关系而发送数据包至一个多播组是可能的，但是在发送数据之前自身加入一个组是更好办法（由于某些我不敢冒险的原因）。