How the documentation explain...
"Tagged/Untagged - Under /interface bridge vlan menu, you can specify an entry that contains tagged and untagged ports. In general, tagged ports should be your trunk ports and untagged ports should be your access ports. By specifying a tagged port the bridge will always set a VLAN tag for packets that are being sent out through this port (egress). By specifying an untagged port the bridge will always remove the VLAN tag from egress packets."
What is the behavior of the bridge interface if I set it to tag frames with multiple VLAN IDs and a DHCP client is attached to it? Will the interface send multiple frames tagged with different VLAN IDs when broadcasting DHCP discovery packets?