systemd-networkd

Parent device:

/etc/systemd/network/port1.network

[Match]
Name=enp1s0f1
Type=ether
 
[Network]
Description=Network for uplink without IP
VLAN=uplink
 
# tagged only / no IP configuration
LinkLocalAddressing=no
LLDP=no
EmitLLDP=no
IPv6AcceptRA=no
IPv6SendRA=no

VLAN file:

/etc/systemd/network/uplink.netdev

[NetDev]
Name=uplink
Kind=vlan
 
[VLAN]
Id=1337

Network configuration for RA/DHCPv6:

/etc/systemd/network/uplink.network

[Match]
Name=uplink
Type=vlan
 
[Network]
Description=VLAN for uplink
 
DHCP=yes
[DHCPv6]
PrefixDelegationHint=::/59

• DHCPv6 prefix delegation with systemd-networkd
• How to do VLANs with systemd-networkd on Linux
• systemd-networkd to the rescue for DHCPv6 Prefix Delegation with Ziggo in the Netherlands