linux下多ISP的策略路由

http://kerry.blog.51cto.com/172631/385578/

修改/etc/iproute2/rt_tables

先在 /etc/iproute2/rt_tables 下建兩個 table
echo "100 line1" >> /etc/iproute2/rt_tables
echo "200 line2" >> /etc/iproute2/rt_tables
# 設定 line1 的 gateway
ip route add default via 100.100.100.254(网关) table line1
# 設定 line2 的 gateway
ip route add default via 200.200.200.254(网关) table line2
# 指定從 100.100.100.100 進來的連線走 rule line1
ip rule add from 100.100.100.100(接口IP) table line1
# 指定從 200.200.200.200 進來的連線走 rule line1
ip rule add from 200.200.200.200(接口IP) table line2

额外创建两个路由表
vi /etc/iproute2/rt_tables
1 eth1table
2 eth0table

设置两个路由表中的路由：
ip route add 124.207.105.0/24 dev eth0 src 124.207.105.228 table eth0table/ip route add 113.31.32.0/28 dev eth1 table lt_line
ip route add default via 124.207.105.225 table eth0table
ip route add 119.254.242.0/24 dev eth1 src 119.254.242.35 table eth1table
ip route add default via 119.254.242.33 table eth1table

ip route add 10.1.0.0/16 via 10.10.10.1 table eth1table
设置路由规则
ip rule add from 124.207.105.228 table eth0table 来自此IP的走哪个路由表
ip rule add from 10.0.0.0/18 table ethotable 此网段走那个路由表
ip rule add from 119.254.242.35 table eth1table

ip route list查看路由策略
ip route list table eth2table
ip route show table eth2table

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http://www.jbxue.com/LINUXjishu/10051.html
ip route add default via 60.29.231.1 dev eth0 src 60.29.231.160 table cnc
ip rule add from 60.29.231.160 lookup cnc
ip rule add to 60.29.231.160 lookup cnc