DNS解析非常奇怪的问题

[bongdeee]

很多的地址都被解析成1.0.0.0，但是如果ping一次，则马上解析正确为正确的IP地址。导致一些软件用起来很难受，如MSN，从开始登录到显示出来好友列表，要更换好几次服务器，得一个一个的PING，然后才能上去

ifconfig

br0 Link encap:Ethernet HWaddr 00:15:C5:41:B7:CA
inet addr:192.168.1.8 Bcast:192.168.1.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:8220 errors:0 dropped:0 overruns:0 frame:0
TX packets:7299 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:10350651 (9.8 MB) TX bytes:687376 (671.2 KB)

eth0 Link encap:Ethernet HWaddr 00:15:C5:41:B7:CA
inet addr:192.168.1.8 Bcast:192.168.1.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:8228 errors:0 dropped:0 overruns:0 frame:0
TX packets:7316 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:10499471 (10.0 MB) TX bytes:721805 (704.8 KB)
Interrupt:18

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:96 errors:0 dropped:0 overruns:0 frame:0
TX packets:96 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:9697 (9.4 KB) TX bytes:9697 (9.4 KB)

vbox0 Link encap:Ethernet HWaddr 00:FF:61:79:CC:27
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:765 overruns:0 carrier:0
collisions:0 txqueuelen:500
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)

是不是因为装了br的原因
哪位能够帮助解决一下