The RTL8380-RTL9300 switches only forward packets when VLAN ID 1 is
configured. Do not use the standard failsafe configuration for DSA
accessing the default port directly, but configure a switch on the lan1
interface instead.
This will add the VLAN ID 1 configuration to the switch:
$ bridge vlan show
port vlan-id
lan1 1 PVID Egress Untagged
switch 1 PVID Egress Untagged
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
(cherry picked from commit b7ee0786b5)
