Do you want these ports to be port based VLAN members, i.e. carrying untagged frames?What you need to do in this case is create your VLAN on the trunk port (you already did that), then create a bridge interface with that VLAN and the untagged additional port as members. Then, and this is important, assign the logical interface (Interfaces > Assignments) including IP address configuration etc. to the bridge interface, not the VLAN interface. Don't assign anything to the VLAN interface at all.Additionally you might want to change two kernel tunables as documented in the "LAN bridge" chapter of the wiki.HTH,Patrick
┌────────┐ │ │ Device in │ ┌────┴──────────────┬─┐ VLAN 2 ◀───────────────│ └────┬──────────────┤ │ │ │ │ │ └────────┘ │ │ Phys. Interface │ │ │ │ │ │ │ │ Bridge ┌────────┐ │ │ Interface │ ┌─────┴────────┐ │ │ │ │ VLAN 1 │ │ │ │ │ │ │ │ │ └─────┬────────┘ │ │ │ ┌─────┴────────┐ │ │ │ │ VLAN 2 ┌──┴─────┤ │ │ │ └──┬─────┴─┘ Trunk │ └─────┬────────┘ Switchport ◀───────────────│ ┌─────┴────────┐ │ │ VLAN 3 │ │ │ │ │ └─────┬────────┘ │ ┌─────┴────────┐ │ │ VLAN ... │ │ │ │ │ └─────┬────────┘ └────────┘ Phys. Interface
