### 1. 备份网卡配置文件

```bash
cp  /etc/sysconfig/network-scripts/ifcfg-eth0  /temp/ifcfg-eth0.bak
```

### 2. 修改网卡配置文件

```shell
BOOTPROTO="static"
ONBOOT="yes"
IPADDR=172.29.208.1
NETMASK=255.255.240.0
GATEWAY=172.29.208.0
DNS1=172.29.208.0
```