ubuntu系统一网卡多IP配置

#ubuntu18.04配置

network:
  version: 2
  ethernets:
    eth0:
      dhcp4: no
      addresses:
        - 222.222.63.231/24
        - 192.168.3.11/24
      gateway4: 192.168.3.1
      routes:
        - to: 222.222.63.0/24
          via: 222.222.63.1
      nameservers:
        addresses:
          - 202.96.209.5
          - 223.5.5.5

network:
    ethernets:
        eth0:
            addresses:
            - 172.17.20.17/24
            - 192.168.1.17/24
            gateway4: 192.168.1.1
            routes:
                    - to: 172.17.20.0/24
                      via: 172.17.20.254
            nameservers:
                addresses:
                - 114.114.114.114
    version: 2

#ubuntu14.04配置

# 主IP地址配置（eth0）
auto eth0
iface eth0 inet static
    address 192.168.1.19
    netmask 255.255.255.0
    gateway 192.168.1.1
    dns-nameservers 192.168.0.5

# 子IP地址配置（eth0:1）
auto eth0:1
iface eth0:1 inet static
    address 10.2.2.19
    netmask 255.255.255.0
    gateway 10.2.2.1
    dns-nameservers 202.96.209.5

ip route add default via 192.168.1.1 dev eth0 metric 100
ip route add default via 10.2.2.1 dev eth0:1 metric 200