Ether1 - WAN - IP xxx.xxx.xxx.123
Local Lan - 192.168.0.1/24
Mail Server - 192.168.0.10
RDP Server - 192.168.0.2
Port forwarding rule - POP3 port 110 forward to 192.168.0.10
Port forwarding rule - RDP port 3389 forward to 192.168.0.2
From external LAN I am able to collect my mail via POP and Remote Desktop (port: 3389) to Wan IP xxx.xxx.xxx.123
But when I am on the local lan segment 192.168.0.1/24 I am not able to collect my mail to Wan IP xxx.xxx.xxx.123, I used to be able to do this on a TPLink WR1043ND.
I believe there is a rule on a firewall but I do not know how to create. It is something like a reverse NAT.