假设
192.168.12.11 192.168.12.12 192.168.12.13 192.168.12.14 gw 192.168.12.1
添加路由表
$ cat /etc/iproute2/rt_tables 21 t1 22 t2 23 t3 24 t4
添加路由信息
ip route add 192.168.12.0/24 dev em1 src 192.168.12.11 table t1 ip route add 192.168.12.0/24 dev em2 src 192.168.12.12 table t2 ip route add 192.168.12.0/24 dev em3 src 192.168.12.13 table t3 ip route add 192.168.12.0/24 dev em4 src 192.168.12.14 table t4 ip route add default dev em1 via 192.168.12.1 table t1 ip route add default dev em2 via 192.168.12.1 table t2 ip route add default dev em3 via 192.168.12.1 table t3 ip route add default dev em4 via 192.168.12.1 table t4 ip rule add from 192.168.12.11 table t1 ip rule add from 192.168.12.12 table t2 ip rule add from 192.168.12.13 table t3 ip rule add from 192.168.12.14 table t4