Hello,

I've setup hotspot on one wlan interface another is normal ap with pppoe access...

That base station is routed from main gateway... Something like:

RB1000 ---- RB433 ---- RB433 ---- RB433 HOTSPOT/AP

It's routed in private class /30 and there is routed public ip pool for PPPoE users.
And when user connects on hotspot after login it's able to open only local network websites and I see in log that user coming from routed RB address ...

How to NAT hotspot users to use one public IP which is routed as another pool?

I hope You understand me... Thank You in advance!