请教,局域网无法上网的问题,敬请高手指点

[combeca]

一切配置都运行了,然后运行ifconfig后的结果如下,可结果仍然是无法上网.敬请各位大侠指点.谢谢了先.

cctv@ccice:~$ ifconfig
eth0 Link encap:Ethernet HWaddr 00:13:8f:04:31:07
inet addr:192.168.1.128 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::213:8fff:fe04:3107/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:18 errors:0 dropped:0 overruns:0 frame:0
TX packets:28 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:2115 (2.0 KB) TX bytes:3969 (3.8 KB)
Interrupt:20 Base address:0xb400

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:1470 errors:0 dropped:0 overruns:0 frame:0
TX packets:1470 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:76020 (74.2 KB) TX bytes:76020 (74.2 KB)

[k_f]

看route的显示网关设对了没有
网关对了的话看dns

[combeca]

网关的程序怎么用?dns怎么看啊?谢谢