回复：f64,traceroute问题再次请教

来源: 于 2003-10-02 22:47:00 [旧帖] [给我悄悄话] 本文已被阅读：次

there's no way you can tell a machine is just down or does not exist simply by using traceroute,
you may need to exam the icmp packets sent back by intermediate routers to find out either host unreachable or whatever other reasons



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