Yahooのホームページへのアクセスが遅いんで、tracertしてみたんだが、
途中で他のbbtec.netのアドレスが入ってるのは正常ですか？

Tracing route to www.yahoo.co.jp [210.81.150.5]
over a maximum of 30 hops:

1 40 ms 230 ms 61 ms YahooBB219180xxxyyy.bbtec.net [219.180.xxx.yyy]

2 20 ms 20 ms 20 ms 10.18.10.19
3 20 ms 20 ms 30 ms 10.18.10.25
4 60 ms 210 ms 221 ms 10.18.0.1
5 20 ms 20 ms 20 ms 10.0.9.1
6 661 ms 20 ms 20 ms 10.0.1.30
7 20 ms 20 ms 30 ms YahooBB218176246006.bbtec.net [218.176.246.6]
8 20 ms 20 ms 30 ms 210.81.152.142
9 * * * Request timed out.
10 * * * Request timed out.
11 * * * Request timed out.
12 * * * Request timed out.
13 * * * Request timed out.
14 * ^C