How to dstnat the second ROS?

Hello ,friends!
I have 2 ROS router.the First ROS enable pppoe server on the lan interface,lan IP address=10.7.7.7,PPP profile --lacal address=10.7.7.1 ,romote address=10.7.7.12.
The second ROS as a pppoe client ,dial on the First ROS’s lan interface.
ISP adsl input the First ROS wan interface.I make DDNS ,and work well.
I can visit the First ROS via DDNS successfully,but I want to manage the second ROS,how to dstnat the second ROS? I try many times,but fail. Sorry,my English is poor.

Manage how? SSH? Winbox?

You’re asking a very specific question, but as you can imagine the answer depends on the protocol and port used.

Here is the general approach:

/ip firewall nat
add chain=dstnat in-interface=PPPoE-client-interface-name protocol=tcp dst-port=10000 action=dst-nat to-address=10.7.7.12 to-ports=8291

Change the interface name as required (if you don’t know what to, post the output of “/interface print detail” from router #1), and change the to-ports are required. The above forwards tcp/10000 to tcp/8291 (Winbox) on router #2.

Thanks for you reply.I have tried as you do .but failed.I want to via winbox to manage.pppoe client used encryption

2.9.27 is out of support, it is way too old.

The only reason anyone would be running 2.9.27 is because they pirated and stole the software. If you have a legitimate version or a RouterBOARD then upgrade your software.