关于ubtun20.04的网卡设置（多网卡 多IP 单网卡 多IP（子ip） bond）

目录：/etc/netplan

目录： /proc/sys/net/ipv4/conf

验证bond命令：watch -n 1 cat /proc/net/bonding/bond0

一. 单网卡+静态IP

1. vim 00-installer-config.yaml

# This is the network config written by 'subiquity'
network:
  ethernets:
    ens33:
      dhcp4: no
      dhcp6: no   #关闭dhcp
      addresses:
      - 10.0.0.134/24 
      optional: true
      gateway4: 10.0.0.220
      nameservers:  #dns
          addresses: [114.114.114.114,8.8.8.8]
  version: 2

2. 重启 sudo netplan apply  

成功！

二 .单网卡多IP(子IP)

1.  vim 00-installer-config.yaml

# This is the network config written by 'subiquity'
network:
  ethernets:
    ens33:
      dhcp4: no
      dhcp6: no
      addresses:
      - 10.0.0.134/24
      - 10.0.0.16/24
      optional: true
      gateway4: 10.0.0.220
      nameservers:
          addresses: [114.114.114.114,8.8.8.8]
  version: 2

 2. netplan apply 成功！

三. 多网卡多IP并且绑定bond

1. 适配器添加一块网卡

2. 查看新添加网卡名称

cd  /proc/sys/net/ipv4/conf

  vim 00-installer-config.yaml

network:
  ethernets:
    ens33:
      addresses: []         #绑定单网卡不需要写IP地址
      dhcp4: no
    ens38:
      addresses: []
      dhcp4: no

  bonds:
    bond0:
      addresses:
        - 10.0.0.134/24
      gateway4: 10.0.0.220
      nameservers:
        addresses:
          - 114.114.114.114
      interfaces:
        - ens33
        - ens38
      parameters:           #参数
        mode: active-backup #bond模式

    ens39: 
      dhcp4: no
      dhcp6: no
      addresses: 
        - 10.0.0.35/24
      gateway4: 10.0.0.220
      optional: true
      nameservers:
          addresses: [114.114.114.114,8.8.8.8]
  version: 2

此为bond6的配置 如果要配置其他自行更改：

如8023ad

network:
    version: 2
    renderer: networkd
    ethernets:
        enp2s0:
            dhcp4: no
        enp3s0:
            dhcp4: no
            optional: true
   bonds:
        bond-lan:
            interfaces: [enp2s0, enp3s0]
            addresses: [192.168.93.2/24]
            parameters:
                mode: 802.3ad
                mii-monitor-interval: 1

验证bond: watch -n 1 cat /proc/net/bonding/bond0

 mac 与bond0相同