traceroute

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traceroute (tracert)†

「tracert」(Windows)、「traceroute」(UNIX)コマンドは、
ICMP(Internet Control Message Protocol)プロトコールを使用して、
ネットワークの経路を表示します。

実行例†

• Windows

  C:\ >tracert advancesoft.co.jp
  
  Tracing route to advancesoft.co.jp [124.146.201.134]
  over a maximum of 30 hops:
  
    1     *        *        *     Request timed out.
    2     *        *        *     Request timed out.
    3     *        *        *     Request timed out.
    4     *        *        *     Request timed out.
  ・・・

• UNIX

  # traceroute advancesoft.co.jp
  traceroute to advancesoft.co.jp (124.146.201.134), 30 hops max, 38 byte packets
   1  xxx.xxx.xxx.xxx (xxx.xxx.xxx.xxx)  0.289 ms  0.326 ms  0.180 ms
   2  * * *
  Icmp checksum is wrong
   3  xxx.xxx.xxx.xxx (xxx.xxx.xxx.xxx)  4.009 msIcmp checksum is wrong
    4.145 msIcmp checksum is wrong
    4.115 ms
  Icmp checksum is wrong
   4  xxx.xxx.xxx.xxx (xxx.xxx.xxx.xxx)  3.725 msIcmp checksum is wrong
    3.666 msIcmp checksum is wrong
    3.435 ms
  Icmp checksum is wrong
   5  xxx.xxx.xxx.xxx (xxx.xxx.xxx.xxx)  4.006 msIcmp checksum is wrong
    3.784 msIcmp checksum is wrong
    3.855 ms
  ・・・

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