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netplan 配置-添加静态路由

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netplan 配置-添加静态路由

我有一台 Linux 计算机（Ubuntu 22.04），它有 2 个接口，分别位于不同的 VLAN 上。一个接口应通过 ipv4 作为默认网关，另一个接口应通过 ipv6 连接。

这是我的配置

network:
   version: 2
   ethernets:
      wan:
         match:
            macaddress: fa:a1:d2:cd:8b:35
         set-name: wan
         addresses:
         - 2000:3000::d17/48
         dhcp4: false
         dhcp6: false
         accept-ra: false
      vpn:
         match:
            macaddress: fa:08:df:79:9b:b5
         set-name: vpn
         addresses:
         - 172.29.1.17/24
         dhcp4: false
         dhcp6: false
         routes:
         - to: 172.29.29.0/24
           via: 172.29.1.1
         nameservers:
            addresses:
            - 1.1.1.1



ip -6 route
2000:3000::/48 dev wan proto kernel metric 256 pref medium
fe80::/64 dev vpn proto kernel metric 256 pref medium
fe80::/64 dev wan proto kernel metric 256 pref medium


ip -6 neighbour
fe80::c6aa:bbcc:fe48:4681 dev wan lladdr aa:bb:cc:48:46:81 router STALE
2000:3000::1 dev wan lladdr aa:bb:cc:48:46:81 router STALE

IPv6 网关应该是

ping -6 2000:3000::1
PING 2000:3000::1(2000:300::1) 56 data bytes
64 bytes from 2000:3000::1: icmp_seq=1 ttl=64 time=0.727 ms
64 bytes from 2000:3000::1: icmp_seq=2 ttl=64 time=0.278 ms

这对于 VPN 接口来说很好，但 WAN ipv6 没有路由，所以我无法通过 ipv6 从外部访问它。我该如何添加路由？

答案1

我扩展了你的 netplan 文件，添加了静态默认 ipv6 路由

network:
   version: 2
   ethernets:
      wan:
         match:
            macaddress: fa:a1:d2:cd:8b:35
         set-name: wan
         addresses:
         - 2000:3000::d17/48
         dhcp4: false
         dhcp6: false
         accept-ra: false
         routes: 
         - to: ::/0
           via: "2000:3000::1"
           on-link: true

      vpn:
         match:
            macaddress: fa:08:df:79:9b:b5
         set-name: vpn
         addresses:
         - 172.29.1.17/24
         dhcp4: false
         dhcp6: false
         routes:
         - to: 172.29.29.0/24
           via: 172.29.1.1
         nameservers:
            addresses:
            - 1.1.1.1

此 netplan 文件不包含 IPv4 的默认路由，猜测这符合您的用例。我不确定此行on-link: true是否需要，但它在我的配置中...

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