MAC visibility on Hotspot

Hi All,

As you can see from the below network image, I am using two routers for my network. CCR 1009 for Internet gateway with Hotspot. And CCR 2004 as the next router for DHCP server. In my setup, everything is working fine. But I am stuck at the hotspot server where it shows a single mac (trunk port) for all the clients connected to the hotspot. I need help to resolve this as it will give me more control over the network.

Please help.
Network.png
net-2.png

if are NATted, you still see the original MAC, or MAC are changed with gateway interface on NAT?