VLAN-ID

A single physical interface can be used to connect multiple separate VLANs (which were separated by a switch previously). The router must be given its own address and/or its own network in each of these VLANs. For this purpose, the interfaces and also a VLAN can be assigned to each network. If a packet is received on an interface with this VLAN ID, then the packet is assigned to the respective network, i.e. the network is only accessible for packets that come from the same VLAN. Packets coming from this network will be marked with this VLAN ID when being sent. A "0" stands for an untagged network (no VLAN).

Please note: Changing the ID is very dangerous. It is very easy to lock yourself out of the device if you do not have access to the VLAN. Also note that this setting affects all of the traffic managed by this network. This includes all packets that are routed through this network.