请问debian lenny能把域名解析到ip,但是ping不通

nyzhou

debian5:~# aptitude update
0% [Connecting to mirrors.163.com (60.191.81.189)]^C
debian5:~# ping mirrors.163.com
PING mirrors.163.com (60.191.81.189) 56(84) bytes of data.
^C
--- mirrors.163.com ping statistics ---
46 packets transmitted, 0 received, 100% packet loss, time 45103ms

debian5:~# ping news.163.com
PING cc00063.h.telssr.chinacache.net (220.181.65.252) 56(84) bytes of data.
^C
--- cc00063.h.telssr.chinacache.net ping statistics ---
4 packets transmitted, 0 received, 100% packet loss, time 3007ms

我在windows 7 上装的 vmware server 2,
里面安装debian lenny, 网络选择nat,
ip设置成 192.168.232.129,
dns只能设置成192,168.232.2才能解析ip，但是ping不通。
也ping不通8.8.8.8等其他ip,

我在windows上可以ssh到debian上。

大家看看是什么原因 ？