CCNA 计算题25. The networks connected to router R2 have been summarized as a 192.168.176.0/21 route and sent to R1. Which two packet destination addresses will R1 forward to R2? (Choose two.) 25.网络连接到路由器R2被汇总为一条192.168

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CCNA 计算题
25. The networks connected to router R2 have been summarized as a 192.168.176.0/21 route and sent to R1. Which two packet destination addresses will R1 forward to R2? (Choose two.) 25.网络连接到路由器R2被汇总为一条192.168.176.0/21的路由,并发给R1.哪两个数据包目的地址R1会转发给R2 A. 192.168.194.160 B. 192.168.183.41 C. 192.168.159.2 D. 192.168.183.255 E. 192.168.179.4 F. 192.168.184.45 Answer: BE

你都知道答案了啊,问什么呢,
运算过程就是用21位的掩码与各个地址进行与运算,相同的就会转发,要注意广播地址和网络地址也是无效转发的地址.