二、Tracert：顯示封包所經過的每個節點狀態。

Usage: tracert [-d] [-h maximum_hops] [-j host-list] [-w timeout] target_name

Options:

-d Do not resolve addresses to hostnames. (關閉--對所經過的節點IP都要做DNS反解，速度變快很多，tracert -d www.edu.tw) 

-h maximum_hops Maximum number of hops to search for target.(經過router的最大數，如只3個： tracert -h 3 www.edu.tw)

-j host-list Loose source route along host-list. (設定所要經過的router名稱清單)

-w timeout Wait timeout milliseconds for each reply. (等待回應的時間)