问答题
Neither external routes nor interarea routes will inject into this area. What is the area type and how can you configure it？
This should be totally stubby ......
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问答题 一个不多于50台主机的网络，合适它的掩码是多少？
问答题 whatisadministrativedistance.
问答题 InmulticastnetworkhowtoselectDR？andwhatistheorder？
