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IGMP means Internet Group Management Protocol. This protocol is used to establish and maintain multicast group membership between IP host and its directly adjacent multicast routers, but does not include the dissemination and maintenance of group membership information between multicast routers. This part of the work is completed by each group of broadcast routing protocols. All hosts participating in multicast must implement IGMP.Aef是个套路满满的直播主，一边卖他的男性用品一边传授他所谓的“恋爱定式”。萌妹Non和她的亲亲女友Bung姐吵架后，Non也会向这个渣男请教……渣男Aef准备要跟女朋友Oeng结婚了却仍然在跟小三Cake拉扯不清……有一天，他和一个漂亮的女人出去，这使他想安定下来，但她最终离开了他。 然后，他遇到了一对有问题的夫妇并为他们提供建议，但他成为他们关系中的第三手。...Public class Observer1 implementations Observer {Find a good comment and add it to the original text!Horcrux 3　　杨白对夏博文总是淡淡的，晚上过夫妻生活也总是关灯，夏博文从未看过她光着的身体，很是自卑。久而久之造成了生理障碍，无法过一个正常男人的生活……果不其然，骑兵护卫统领前来禀报了一个不幸的消息，西楚国的骑兵追杀而来。