linux双网卡配置单网关,linux redhat centos 双网卡单网关或者双网关的配置

vim /etc/iproute2/rt_tables 增加

252  cnc

251  tel

在 /etc/rc.local 里面增加

ip route flush table tel

ip route add default via 网关1 dev eth1 src IP1 table tel

ip rule add fromIP1 table tel

ip route flush table cnc

ip route add default via 网关2 dev eth0 srcIP2 table cnc

ip rule add from IP2 table cnc

注意红色部分即可

写成shell脚本如下

#!/bin/bash

ip1=”1.1.1.2″

e1=”eth0″

gw1=”1.1.1.1″

ip2=”2.2.2.2″

e2=”eth1″

gw2=”2.2.2.1″

#################################################

### 上面的配置要改改

### 下面就不要动了

#################################################

rt=”/etc/iproute2/rt_tables”

echo “252 cnc ” >> $rt

echo “251 tel ” >> $rt

rclocal=”/etc/rc.local”

echo “ip route flush table tel” >> $rclocal

echo “ip route add default via $gw1 dev $e1 src $ip1 table tel” >> $rclocal

echo “ip rule add from $ip1 table tel” >> $rclocal

echo “ip route flush table cnc” >> $rclocal

echo “ip route add default via $gw2 dev $e2 src $ip2 table cnc” >> $rclocal

echo “ip rule add from $ip2 table cnc” >> $rclocal

点此下载