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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.他还没吃早饭哩。在他眼里，尹旭比自己高尚不到哪去。每个人的青春都伴随着迷茫，想好好工作，却不尽如人意；想好好恋爱，却不懂处理感情...其实迷茫不可怕，它本来就是青春应该有的样子。2016年青春片，会不一样么？杏仁的吃完了嘴里不舒服，但牛奶的里边又没果碎，徐风还在纠结，所幸自问自答说，还是每样都买份小盒的吧。Grandpa said that as long as you live on this side of the border, you have to protect it. This sentence was not said by Grandpa to me, but by him to his seven children. Now, his two children have taken over his share of the responsibility from him.板栗道：所以，我回京立即让陈鲨和珊瑚过来给你帮忙。