In this page you can make multiple VLAN settings.
The Multiple VLAN function is used to divide ports for one switch into different groups and prohibit communication between the groups.
A single port can belong to multiple groups, so that the same network address can be assigned even to different groups.
If both the multiple VLAN and port-based VLAN / tagged VLAN are used, communication is not possible between ports that belong to different VLANs, even if the ports belong to same multiple-VLAN group.