使用VLAN和Bridge-Utils将ifupdown转换为Netplan

Question

我需要将使用apt-get vlan and bridge-utils的ifupdown安装程序转换为Netplan，但是无法使用Netplan获得相同的设置。下面是需要转换的当前/etc/network/interfaces配置：

# The loopback network interface
auto lo
iface lo inet loopback

# Mainframe network interface
auto standard
iface standard inet static
        address 172.16.0.6
        netmask 255.255.254.0
        network 172.16.0.0
        broadcast 172.16.1.255
        dns-nameservers 10.0.0.244
        dns-search example.com
        bridge_ports eno1
        post-up route add default gw 172.16.0.1
        pre-down route del default

# Printers network interface
auto vlan5
iface vlan5 inet manual
        address 0.0.0.0
        vlan-raw-device eno1
auto printers
        iface printers  inet manual
        address 0.0.0.0
        bridge_ports vlan5

# Game network interface
auto vlan4
iface vlan4 inet manual
       address 0.0.0.0
       vlan-raw-device eno1
auto gaming
        iface gaming inet manual
        address 0.0.0.0
        bridge_ports vlan4

Answer 1

在Ubuntu18.04中，在Netplan中创建匿名(没有IP)桥接器是一个错误。您必须为每个桥创建/etc/systemd/network/br{#}.network文件，例如：

[Match]
Name=gaming

[Network]
LinkLocalAddressing=no
IPv6AcceptRA=no

接下来，创建一个netplan文件，例如/etc/netplan/50-cloud-init.yaml，包含以下内容：

network:
    version: 2
    renderer: networkd
    ethernets:
         eno1:
                 dhcp4: no
                 dhcp6: no
    bridges:
        # standard network 
        standard:
                addresses:
                       - 172.16.0.6/23
                gateway4: 172.16.0.1
                routes:
                        - to: 0.0.0.0/0
                          via: 172.16.0.1
                nameservers:
                        search: [ example.com ]
                        addresses:
                                - 10.0.0.244
                interfaces: [ eno1 ]
        # gaming network
        gaming:
                interfaces: [ vlan4 ]
        # printers network
        printers:
                interfaces: [ vlan5 ]
    vlans:
        vlan4:
                id: 4
                link: eno1
        vlan5:
                id: 5
                link: eno1                                      

最后运行netplan apply。

Answer 2

我相信这个配置符合/etc/network/interfaces文件的意图。它与屏幕截图中显示的vlan接口的名称不匹配；不清楚为什么您的vlan在屏幕快照中被命名为“vlan2”和“vlan3”，而在e/n/i中为“vlan4”和“vlan5”。

network:
    version: 2
    renderer: networkd
    ethernets:
         eno1:
            dhcp4: no
    bridges:
        # standard network 
        standard:
            interfaces: [eno1]
            addresses: [172.16.0.6/23]
            gateway4: 172.16.0.1
            nameservers:
                search: [example.com]
                addresses: [10.0.0.244]
        printers:
            interfaces: [vlan5]
        gaming:
            interfaces: [vlan4]
    vlans:
        vlan5:
            id: 5
            link: eno1
        vlan4:
            id: 4
            link: eno1

您应该反复检查现有ip -d link show vlan2 | grep 'vlan protocol'接口上的vlan (对于vlan3也是一样)，并调整上面的id值，以匹配每个接口所需的值。