I was wondering that if a host, e.g., a PC or STB or other user multi-media device in an end-user home network is a memebr of multiple VLANs, will it require multiple IP interfaces, one for each VLAN to which the host is a member? How is this then implemented? with multiple physical interfaces i.e., multiple PHY, MAC and IP interfaces or can one use virtual IP interfaces and same NIC? Does anyone know how virtual Interfaces work? ommunication between the different interfaces of the device does it have to go thru a Router?