使用移动3G TD无限流量卡 上网，最近经常发现非常慢，上香港的几个财经网站老是打不开网页，我上BBS Telnet确实非常顺畅的。
今天心有不甘，想起我上BBS都是直接指定IP地址的，不需要DNS解析，会不会是移动的DNS的问题呢？
在Mobile Partner中找到了连接的选项：工具-》选项-》连接配置管理-》高级 即可查看DNS的设置。
把DSN设置为静态，填上8.8.8.8 和 8.8.4.4 两个，再上网，抽风的症状没有了，真怀疑是移动的DNS服务本身的问题呢，还是移动故意的？
C:\Documents and Settings\Administrator>ping 8.8.8.8
Pinging 8.8.8.8 with 32 bytes of data:
Reply from 8.8.8.8: bytes=32 time=141ms TTL=50
Reply from 8.8.8.8: bytes=32 time=140ms TTL=50
Reply from 8.8.8.8: bytes=32 time=139ms TTL=50
Reply from 8.8.8.8: bytes=32 time=138ms TTL=50
Ping statistics for 8.8.8.8:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 138ms, Maximum = 141ms, Average = 139ms
C:\Documents and Settings\Administrator>ping 8.8.4.4
Pinging 8.8.4.4 with 32 bytes of data:
Reply from 8.8.4.4: bytes=32 time=134ms TTL=50
Reply from 8.8.4.4: bytes=32 time=139ms TTL=50
Reply from 8.8.4.4: bytes=32 time=244ms TTL=50
Reply from 8.8.4.4: bytes=32 time=133ms TTL=50
Ping statistics for 8.8.4.4:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 133ms, Maximum = 244ms, Average = 162ms
再来看看移动的DSN的情况，居然比Google的还慢！！！
PPP adapter cmnet:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : WAN (PPP/SLIP) Interface
Physical Address. . . . . . . . . : 00-53-45-00-00-00
Dhcp Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 10.141.198.3
Subnet Mask . . . . . . . . . . . : 255.255.255.255
Default Gateway . . . . . . . . . : 10.141.198.3
DNS Servers . . . . . . . . . . . : 211.136.20.203
211.136.20.203
NetBIOS over Tcpip. . . . . . . . : Disabled
C:\Documents and Settings\Administrator>ping 211.136.20.203
Pinging 211.136.20.203 with 32 bytes of data:
Reply from 211.136.20.203: bytes=32 time=156ms TTL=247
Reply from 211.136.20.203: bytes=32 time=120ms TTL=247
Reply from 211.136.20.203: bytes=32 time=124ms TTL=247
Reply from 211.136.20.203: bytes=32 time=113ms TTL=247
Ping statistics for 211.136.20.203:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 113ms, Maximum = 156ms, Average = 128ms
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