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UBUNTU 18.04 服务器：多个 netplan 路由策略规则，但只有一个有效

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UBUNTU 18.04 服务器：多个 netplan 路由策略规则，但只有一个有效

UBUNTU SERVER 18.04 LTS，带 2 个 GE NIC

eno1: 172.22.1.1/20
eno2: 10.11.1.34/30

netplan yaml：

network:
  version: 2
  renderer: networkd
  ethernets:
    eno1:
      addresses: [ 172.22.1.1/20 ]
      gateway4: 172.22.0.1
      nameservers:
          addresses:
          - "172.22.0.53"
      routing-policy:
        - to: 172.22.224.0/19
          table: 211
          priority: 10
        - to: 192.168.201.0/24
          table: 200
          priority: 20
      routes:
        - to: 0.0.0.0/0
          via: 172.22.0.254
          table: 211
        - to: 0.0.0.0/0
          via: 172.22.0.1
          table: 200

    eno2:
      addresses: [ 10.11.1.34/30 ]
      routing-policy:
        - from: 10.11.1.34
          table: 222
          priority: 8
        - to: 10.128.0.0/16
          table: 222
          priority: 5
      routes:
        - to: 0.0.0.0/0
          via: 10.11.1.33
          table: 222

当我应用配置、重新启动网络或使用时netplan apply，只有其中一个路由策略有效：

当我使用时netplan apply：

  1. eno1：

    • 第一次，只有第一个路由策略有效。
    • 第二次，只有第二个路由策略起作用。
    • 第三次，只有第一个路由策略有效。

  2. eno2

    • 每次只有第二个路由策略有效。

我将 yaml 文件编写为netplan.io 示例告诉。

答案1

我不确定它是否会起作用。

这是我的建议netplan yaml：


network:
  version: 2
  renderer: networkd
  ethernets:
    eno1:
      addresses: [ 172.22.1.1/20 ]
      gateway4: 172.22.0.1
      nameservers:
          addresses:
          - "172.22.0.53"
      routing-policy:
        - from: 172.22.1.1
          to: 172.22.224.0/19
          table: 221
        - from: 172.22.1.1
          to: 192.168.201.0/24
          table: 201
      routes:
        - to: 0.0.0.0/0
          via: 172.22.0.254
          table: 221
        - to: 0.0.0.0/0
          via: 172.22.0.1
          table: 201
        - to: 172.22.224.0/19
          via: 172.22.0.254
        - to: 192.168.201.0/24
          via: 172.22.0.1
    eno2:
      addresses: [ 10.11.1.34/30 ]
      routing-policy:
        - from: 10.11.1.34
          table: 222
      routes:
        - to: 0.0.0.0/0
          via: 10.11.1.33
          table: 222
        - to: 10.128.0.0/16
          via: 10.11.1.33

答案2

下面的操作适用于具有两个网卡的系统，每个网卡使用不同的网关、接口和 IP：

network:
  version: 2
  renderer: networkd
  ethernets:
    eno1:
      addresses: 
        - 172.22.1.1/20
      dhcp4: no
      dhcp6: no
#      addresses: [ 172.22.1.1/20 ]
#      gateway4: 172.22.0.1
      nameservers:
          addresses: [172.22.0.53]
#          - "172.22.0.53"
      routes:
        - to: 0.0.0.0/0
          via: 172.22.0.254
          table: 200
          metric: 100
#          table: 211
        - to: 0.0.0.0/0
          via: 172.22.0.1
          table: 200
          metric: 100
        - to: 172.22.1.0/20
          via: 172.22.0.1
          table: 200
          on-link: true
      routing-policy:
        - to: 172.22.224.0/19
          table: 200
#          table: 211
          priority: 10
        - to: 192.168.201.0/24
          table: 200
          priority: 20

    eno2:
      addresses:
        - 10.11.1.34/30
      dhcp4: no
      dhcp6: no
      nameservers:
          addresses: [???.???.???.???]
#      addresses: [ 10.11.1.34/30 ]
      routes:
        - to: 10.11.1.0/30
          via: 10.11.1.33
          table: 222
          on-link: true
        - to: 0.0.0.0/0
          via: 10.11.1.33
          table: 222
          metric: 100
          on-link:true
      routing-policy:
        - from: 10.11.1.34
          table: 222
          priority: 8
        - to: 10.128.0.0/16
          table: 222
          priority: 5

运行以下命令来检查更改并查看可能的错误很有用：

sudo netplan --debug apply

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