connect from Lan on Wan port

hallo,
I have Mikrotik router with routerOS. I enable firewall and NAT. I have opened some ports on wan interface (e.g. 7777,5555) and redirect them on local servers(to allow RDP from net - from some addresses). This works good. I am able to connect to servers from outside. But I have one problem, when I want to connect from one server inside lan to another in lan throught RDP, I am able to do it just through local IP address, not throught IP address of wan interface and port. What I want to do, is to connect from server on lan to another server on lan, through Ip address of wan interface and port e.g 7777
Can you help me, please ? I hope I have good settings, but I am not 100% sure.
192.168.10.0 is my LAN network. 194.213.196.242 is my wan ip address
routes

DST-ADDRESS PREF-SRC GATEWAY DISTANCE

0 A S ;;; IP routa von pre vsetok ostatny trafic
0.0.0.0/0 194.213.196.242 194.213.196.241 1
1 ADC 192.168.10.0/24 192.168.10.1 bridge-local 0
2 ADC 194.213.196.240/29 194.213.196.242 ether1-gateway 0

example of some NAT rules
;;; RDP7777
chain=dstnat action=dst-nat to-addresses=192.168.10.17 to-ports=7777
protocol=tcp dst-address=194.213.196.242 dst-port=7777

15 chain=dstnat action=dst-nat to-addresses=192.168.10.11 to-ports=3389
protocol=tcp dst-address=194.213.196.242 dst-port=5555

I can post configs that you want and need, just write what exactly.

Hi!

Read about “hairpin nat” its exactly your problem.http://gregsowell.com/?p=4242

Great! Thank you very much.