问题是：
我.用xp的tracert命令tracert 61.189.88.168这个IP，我想.如果能到达的话，跳到第5跳就应该Trace complete.，但是为什么从第6要跳到30，.而且是Request timed out.，请高人指点一二，3Q.
C:\Document.s and Settings\Administr.ator>tracert 61.189.88.168电影
Tra.cing route to 61..189.88.168 over a maximum of 30 hops 汽车
1 2 ms 2 ms <1 ms 2.2.2.243.242.17(广告)
2 2 m..s 1 ms 1 ms 222.247.29.241健康
3 .1 ms 1 ms 1 ms . 61.187.255.185.
4 1 ms 1 ms 1 ms 222.24.7.30.17.0.
5. <1 ms 1 ms 1 ms .61.189.88.168.
. 6 * * * Request time.d out..
7 * * * Request .timed ou.t..
8 * * . . * Request timed out..
9 * * . * Requ.est timed out. 杀毒
10 * .* * . Request timed out.服务器
1.1 * * * . Request timed out. 婚庆
12 * * * Reque..st timed out..
13 * . * * Request t.imed out.域名
14 . * * * . Request timed out.服务器
15 * . * * . Request timed out..
16 * * * Reque.st timed o.ut.( 游戏 )
17 * . * * Request time.d out. 建材
18 * . * . * Request timed out. 乙肝
19 * . * * Request tim.ed out..
20 * * . * . Request timed out. 电子
21 . * * * Request t.imed out. 女人
22 * * . . * Request timed out..
23 . * * * Request timed o.ut..
24 . * * * . Request timed out.--- 印刷
25 * * . * Re.quest timed out..
26 * * . * R.equest timed out.(广告)
27 . * * . * Request timed out.( 游戏 )
28 * . * * .Request timed out..
29 * * . * R.equest timed out.( 游戏 )
30 * .* . * Request timed out.投资
Trace .complete.--- 印刷
C:\Documents and Setting.s\Administr.ator>.
