Ubuntu22.04 开启ipv6网关

vim /etc/netplan/00-installer-config.yaml

# This is the network config written by 'subiquity'
network:
  ethernets:
    ens192:
      addresses:
        - 10.10.10.3/24
      gateway4: 10.10.10.252
      gateway6: fe80::250:56ff:fe3f:ffff
      nameservers:
          addresses: [10.10.10.252, 10.10.10.253,fe80::250:56ff:fe3f:ffff]
      #dhcp6: true
      #accept-ra: true
  version: 2
  
  # 新版配置
  network:
  version: 2
  ethernets:
    ens192:
      addresses:
        - 10.10.10.3/24
        - 240e:380:af0a:bc10::4bc/64   # <== 你的 IPv6 地址（替换成实际的）
      nameservers:
        addresses:
          - 10.10.10.252
          - 10.10.10.253
          - fe80::250:56ff:fe3f:ffff    # IPv6 DNS
      routes:
        - to: 0.0.0.0/0
          via: 10.10.10.252
        - to: ::/0
          via: fe80::250:56ff:fe3f:ffff
          on-link: true
  
  
  #生效
  sudo netplan apply