centos7 静态路由 + 静态ip

# 路由配置

> vim /etc/sysconfig/network-scripts/route-em1
#从0开始
ADDRESS0=172.16.156.0   #目的地
NETMASK0=255.255.252.0  #目的掩码
GATEWAY0=192.168.1.1    #via gateway

# 网口配置

> vim /etc/sysconfig/network-scripts/ifcfg-em2

TYPE=Ethernet
BOOTPROTO=none
DEFROUTE=yes
IPV4_FAILURE_FATAL=no
IPV6INIT=yes
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6_FAILURE_FATAL=no
IPV6_ADDR_GEN_MODE=stable-privacy
NAME=em2
UUID=8e928750-1fd2-4ce8-bd95-829842b04dcd
DEVICE=em2
ONBOOT=yes   #开机启动网口
IPADDR=192.167.1.2
PREFIX=24
GATEWAY=192.167.1.1
IPV6_PEERDNS=yes
IPV6_PEERROUTES=yes
METRIC=10             #这个貌似不生效
IPV4_ROUTE_METRIC=10  #路由优先级，越低越好