ZYXEL P-663HN-51 DSL Router LOT of 3 802.11n ADSL2+ BONDED 4-PORT GATEWAY wi-fi | eBay
How to setup DSL 320B revision Z1 in bridge mode | D-Link
An ADSL modem/router I used back in the day. One of the very few that could operate in half-bridge mode, extending my public IP address to my edge router. : r/techsupportmacgyver