VLANs 
VLAN’s allow users to specify which ports are “bridged” – that is, where broadcast 
traffic will be shared. This allows users to create separate subnets on each LAN 
port (or group of LAN ports). Note that although there are 15 VLAN’s available, 
there are only 5 ports (4 x LAN, 1 x WAN). Note also that the WAN port should be 
on a separate VLAN or routing to the WAN may not work. If the WAN port is 
assigned to the same VLAN as the LAN ports, then it becomes an additional LAN 
port and cannot be used for a WAN connection.