当服务器有两张网卡时,需要添加路由指定流量进出口优先级
1.先设置路由优先级
vi /etc/iproute2/rt_tables 255 local 254 main 253 default 0 unspec 251 SZ 252 HK
2.添加路由
vi /etc/rc.local ip route flush table SZ(SZ代表网卡别名) ip route add default via 192.168.1.1 dev eth0 src 192.168.1.100 table SZ ip rule add from 192.168.1.100 table SZ ip route flush table hk(hk代表网卡别名) ip route add default via 192.168.2.1 dev eth1 src 192.168.2.100 table hk ip rule add from 192.168.2.100 table hk
3.最后执行
/etc/rc.local
4.注意centos7要对rc.local添加执行权限