求教版主、各位大侠！（我还是不明白）

jinawy

书上有这么一段关于有类路由协议的描述，谁能帮忙翻译一下。谢谢！！！ \r\nThe forwarding decision made by a router using classful forwarding is as follows: \r\n1.Send a datagram to the subnet if there is an entry in the routing table. \r\n2.If there is no entry in the routing table, discard the datagram. \r\n3.If there is an entry for a major network but not for the specific subnet, discard the datagram. \r\n4.If there is an entry for a major network but not the specific subnet, do not consider the default network but instead discard the datagrm. \r\n5.If there is no entry for the either the major network or the subnet, but there is a default route, forward the datagram to the default network. \r\n哪位大侠能分别举个例子，俺就太感激了。

jinawy

我顶！一个回帖的都没有啊？这个问题很简单以至大家不屑解答？