Asus WL-550gE Wireless Router@ 2006/01/23
that it doesn’t have an integrated ADSL modem. Instead, it has a separate
10/100BaseTX Ethernet WAN port which is designed to accept an external
cable or ADSL modem or it can be placed on a LAN where Internet access is
provided by a gateway device. If you’re looking for ADSL2/2+ support
you’ll need to source a suitable modem with an Ethernet port.