Untagged vlan - MikroTik
https://forum.mikrotik.com/viewtopic.php?p=64565806.03.2018 · Untagged vlan means that frames that belongs to 100 VLAN with 802.1Q header, will be received with this 802.1Q header and after this, switch will strip this header and frame will forward in VLAN 100 in CAM table as untagged in this VLAN. If outbound port is access, there will be no 802.1Q header in frame. If port is mapped as trunk or tagged in ...