White addresses through gray - how?

[guest17399]

Hello.
It is necessary to address the white address, instead of gray.

1. We have a BGP Community, from which we take white addresses.
2. We have gray addresses - NAT.

How to address the white address, instead of gray?

[guest17399]

Preferably not past NAT.

[guest17399]

I ask for help. The problem is still relevant.