fedora16连公司局域网，局域网通上不去外网

[i=s] 本帖最后由 sying82 于 2012-4-28 17:35 编辑 [/i]

公司服务器上装了fedora16配置固定IP且公司没有绑定MAC地址 但是内网正常外网却上不去，检查配置一切正常网关和局域网其他机器都可以PING通，只有外网上不去。请各位高手指点
补充：dns配置也正确
[root@cict oracle]# ifconfig -a
em1 Link encap:Ethernet HWaddr 00:1B:78:9E:4F:94
inet addr:192.168.1.204 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::21b:78ff:fe9e:4f94/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:2465984 errors:0 dropped:1900 overruns:0 frame:0
TX packets:390289 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000
RX bytes:400885631 (382.3 MiB) TX bytes:219294104 (209.1 MiB)
Interrupt:16 Memory:f8000000-f8012800

em2 Link encap:Ethernet HWaddr 00:1B:78:9E:4F:92
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
Interrupt:17 Memory:fa000000-fa012800

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:470946 errors:0 dropped:0 overruns:0 frame:0
TX packets:470946 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:195453108 (186.3 MiB) TX bytes:195453108 (186.3 MiB)
上面是什么意思啊 是有错误吗