Internal routing

RouterOS Beginner Basics
1

I am fairly new to this so please excuse me if I ask the wrong questions. I am running Winbox v4.13. I would like to have it so that traffic coming in on port 5550 forward to a web server. I have a NAT rule set that is as follows for example:

dest address: 72.x.x.x (public IP)
port :5550
prot: tcp

Action:
dst-nat to 192.168.x.x port 80

The forwarding works fine for anyone outside of the LAN, however anyone on the LAN gets that the IE cannot display the web page. I have also tried modifying the rule to say that anything coming from src 192.168.100.0/24 going to the public IP address on port 5550 to fwd but still no luck. Can anyone tell me why it would work from the WAN side but not the LAN side? Not sure if I have provided enough information.

2

I think what you want is called a hairpin NAT
http://wiki.mikrotik.com/wiki/Hairpin_NAT
I think you are missing the srcnat from your localnet. That is covered about halfway down the page. You will probably need to use “dst-port=5550” and add “to-ports=80”

3

Thank you very very much. This helped a lot. It is working now.