liunx模拟路由器

client1
ip:192.168.7.101
client2
ip:192.168.146.101
router(router要有2块网卡)
ip:192.168.7.102 192.168.146.102

router:
开启ip_forward
#echo 1 >> /proc/sys/net/ipv4/ip_forward
#sysctl -p

client1、2
添加临时网关
#route add default gw 192.168.7.102
#route add default gw 192.168.146.102

client1
#ping 192.168.146.202