Slightly off topic, but is anyone aware of any ispís that use the Openreach network that you can set the router to modem mode natively. Iíve been Forwarding from one router to another via a dmz for years. I would like to avoid all of this if possible and still use my asus rt-ac68u if possible without the dmz/ dhcp workaround. The sky mesh sounds good but Iím unsure if it has the flexibility that the ASUS does when if comes to remote access and blocking the kids access on the fly.
Almost every ISP allows this. A few provide VDSL2 modems in bridge mode (what you want).
Most of the bigger ISP's provide a modem/router combined. Some of these allow bridge mode to be set, some don't.
I do exactly as you seek with a Zyxel VMG1312-B10A in bridge mode with my Asus RT-AC68U.
The Asus controls the PPP session and WIFI.
The ZyXEL in bridge mode only handles the XDSL link.