Using the Dialer's IP address within the network. Is it possible to?

Question

Computer networks

I have a connection to several Provo, which give white subnets (from some several).
The interfaces on the equipment are bridged (BVI) and nothing prevents me from using "white IP" on servers within the network. Everything is great.
For "secret" tasks, I decided to start a separate dip, and this dip, as it turned out, connects via PPPoE.
Hence the question, Colleagues: please tell me, is it possible to bridge Dialer in order to use IP not on a router, but on a device within the network?
I do not want to land IP on the router, and even more so to strain it with NAT.
I know how to build a bridge, but I don’t understand how to “pick up” the address and what to set as a gateway. Unfortunately, I only know how PPPoE works in general terms, so I ask for help.
All links go to the Cisco router (с2921)

Answer 1

No. Bridge a couple more interfaces and install PPPoE from another piece of hardware, on which there will be a white address.