ping 本地路由可以ping通，ping外网ping不通
route查看路由表
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.10.0 * 255.255.255.0 U 0 0 0 eth1
网关没有，添加网关
route add default gw 192.168.10.1
新路由表
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
default 192.168.10.1 0.0.0.0 UG 0 0 0 eth1
192.168.10.0 * 255.255.255.0 U 0 0 0 eth1
ＯＫ～
ping www.baidu.com
PING www.baidu.com (61.135.185.32): 56 data bytes
64 bytes from 61.135.185.32: seq=0 ttl=56 time=14.518 ms
64 bytes from 61.135.185.32: seq=1 ttl=56 time=18.638 ms