https://wiki.archlinux.org/title/VLAN#Single_interface_with_multiple_VLANs_each_with_its_own_gateway
Tageed vlan：
sudo nano /etc/systemd/network/10-eth0.network [Match] Name=eth0
[Network] DHCP=no VLAN=eth0.10
sudo nano /etc/systemd/network/20-eth0.10.netdev [NetDev] Name=eth0.10 Kind=vlan
[VLAN] Id=10
sudo nano /etc/systemd/network/20-eth0.10.network [Match] Name=eth0.10
[Network] DHCP=ipv4
sudo systemctl restart systemd-networkd