Netmap & Public IP Problem

Good Day,

I have a problem with reaching public IP’s on my internal network from another.
I will add my exports below for further reference.

Example of Problem

I have a client connecting via PPPOE, Receives and IP of 200.5.1.x
I create 2x netmap rules mapping a public IP to this client.
Example: 200.5.1.9 netmap to X.X.X.185 & netmap X.X.X.185 to 200.5.1.9
From outside I can access all services on X.X.X.185, but from inside the internal network I cannot access anything on this client, not even icmp.

The basic details below, The rest can be found in attachments.
WAN IP/s: X.X.X.180/28(The Whole X.X.X.180-190 IS On INT ETH 7)
Lan IP: 200.0.1.1/24(PPPOE SERVER) & 200.5.1.1 ETH 10

For any further info refer to attached or ask me if you require more info.
Help would be very much appreciated.

Thank You
Kind Regards