The present invention is directed to an integrated access device (IAD) that provides multiple communication interfaces for communications to a variety of service providers. The disclosed IAD acts as a DSL modem and combines the functions of a gateway, router, and Ethernet hub to provide high-speed Internet access to PCs sharing a local network. It provides the networking functions that let PCs connect through a variety of methods, including traditional Ethernet, wireless, universal serial bus (USB), and home phoneline networking alliance (HPNA). It also provides point-to-point protocol over Ethernet (PPPOE) tunneling through network address translation (NAT).