LAN Select the VLAN to configure.
Tag / Untag / Exclude All. For a port or trunk to participate in a VLAN, its tagging policy must be defined. By default, all ports and trunks are configured as untagged members of VLAN1, and are excluded from all other newly created VLANs.
You can use the Tag / Untag / Exclude All box to configure all ports at once. Click this box until the appropriate options displays:

E — exclude all ports from this VLAN.
T — participate in the selected VLAN and tag all frames.
U — participate in the selected VLAN and leave all outgoing frames untagged. Each port can have only one untagged VLAN membership. If a port is an untagged member of a VLAN and a second VLAN is selected for untagged membership, then the first VLAN membership is automatically changed to E (Exclude).
Then, you can use the Port boxes to refine the ports participation and tagging settings.