I have a relatively simple configuration but I can't seem to figure out egress VLAN tagging on a RB2011U running v6.35.4. I assume it has something to do with the switching on the board.
The routerboard is configured with a VLAN (ID 12) on the SFP interface which is the WAN interface. I simply want the packets tagged with ID 12 as they egress the interface and stripped as they ingress. I assumed that simply creating VLAN12 on the SFP interface would do this but it is not working for some reason. What do I need to configure in the routerboard switch mechanism to make this work?