[systemd-devel] bridge vlan-aware

[Andrei Borzenkov]

On 18.11.2022 03:46, Salvatore Mazzarino wrote:
> Posted a wrong config for br0.netdev. the correct one is the following
> br0.netdev
> 
> [NetDev]
> Name=br0
> Kind=bridge
> 
> [Bridge]
> DefaultPVID=1
> VLANFiltering=yes
> 
> 
> On Fri, Nov 18, 2022 at 1:43 AM Salvatore Mazzarino <apocalipse89 at gmail.com>
> wrote:
> 
>> I have a physical interface named enp89s0 on a machine which runs VM with
>> libvirt.These VMs have to run in a VLAN. The physical interface is attached
>> to the default VLAN (1).
>>
>> My config
>>
>> br0.dev
>>
>> [NetDev]
>> Name=br166
>> Kind=bridge
>>
>> br0.network
>>
>> [Match]
>> Name=br0
>>
>> [Network]
>> VLAN=eth.1
>> VLAN=eth.166
>>
>> [BridgeVLAN]
>> VLAN=1
>>
>> [BridgeVLAN]
>> VLAN=166
>>
>> br166.netdev
>>
>> [NetDev]
>> Name=br166
>> Kind=bridge
>>
>> br166.network
>>
>> [Match]
>> Name=br166
>> [Network]
>> DHCP=no
>>
>> enp89s0.network
>>
>> [Match]
>> Name=enp89s0
>> [Network]
>> Bridge=br0
>>
>> eth.1.netdev
>>
>> [NetDev]
>> Name=eth.1
>> Kind=vlan
>>
>> [VLAN]
>> Id=1
>>
>> eth.1.network
>>
>> [Match]
>> Name=eth.1
>>
>> [Network]
>> DHCP=yes
>>
>> eth.166.netdev
>>
>> [NetDev]
>> Name=eth.166
>> Kind=vlan
>> [VLAN]
>> Id=166
>>
>> eth.166.network
>>
>> [Match]
>> Name=eth.166
>> [Network]
>> Bridge=br166
>> DHCP=no
>>
>> the interface eth.1 correctly gets UP and it receives the IP addr from the
>> primary lan. when I connect my libvirt VMs to the br166 unfortunately they
>> do not get any IPs from the VLAN 166 (DHCP is there so they should get it).

Did you configure switch port for tagged VLAN 166? Do you have DHCP 
server in VLAN 166?

>> I'm sure my networkd config is off in some parts but not sure where.
>> conceptually it should be correct.
>>
>