能ping通，但打不开网页，求解
小型局域网，情况是能ping通，但打不开网页，但别人可以打开网页，我换成那个人的IP，我也可以打开网页。求解，怎样用我的IP打开网页。

我的IP：10.249.4.178
C:\Documents and Settings\lenovo>ping www.baidu.com

Pinging www.a.shifen.com [202.108.22.43] with 32 bytes of data:

Reply from 202.108.22.43: bytes=32 time=21ms TTL=58
Reply from 202.108.22.43: bytes=32 time=44ms TTL=58
Reply from 202.108.22.43: bytes=32 time=24ms TTL=58
Reply from 202.108.22.43: bytes=32 time=24ms TTL=58

Ping statistics for 202.108.22.43:
  Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
  Minimum = 21ms, Maximum = 44ms, Average = 28ms

C:\Documents and Settings\lenovo>



别人的IP：10.249.4.168
C:\Documents and Settings\lenovo>ping www.baidu.com

Pinging www.a.shifen.com [202.108.22.43] with 32 bytes of data:

Reply from 202.108.22.43: bytes=32 time=23ms TTL=58
Reply from 202.108.22.43: bytes=32 time=21ms TTL=58
Reply from 202.108.22.43: bytes=32 time=21ms TTL=58
Reply from 202.108.22.43: bytes=32 time=25ms TTL=58

Ping statistics for 202.108.22.43:
  Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
  Minimum = 21ms, Maximum = 25ms, Average = 22ms

C:\Documents and Settings\lenovo>


说是有arp攻击，装了AntiARP，手动邦定网关IP和mac，情况还是完全相同。

------解决方案--------------------
个人建议找网管,换个IP
------解决方案--------------------
如果IP不是挷定的。建议换个IP地址。1楼正解。
------解决方案--------------------
会不会是ie设置了代理,而这个代理现在不可以用了.因为ping是不使用ie配置的代理的.
------解决方案--------------------
根据你的情况很可能是被木马病毒干扰或者别人使用网管软件攻击你
------解决方案--------------------
你可以把你的IP给别人换上试验下
------解决方案--------------------
你的情况出现多久了？把其他电脑都关了你还是不能上吗？