Goodday all,

I have a tp-link router setup as local network with my home router as isp. I frequently abuse this local network for testing hence why I want to keep it separate from the home-network.

It all works perfectly, but there is one thing that I can't really get working. I have a printer-scanner combo connected with wifi to the home-router, which I would like to connect to from a pc that is connected to the tp-link-router. Currently on the pc I have a custom configuration for a 'standard TCP/IP-port' set to the ip address of the printer in the home-network. This works great for printing, but the scanning part doesn't work (I assume because it sort-of is a one-way-street in the current configuration).

So to make it easier to understand, here is a schematic display of the current setup:

┌───────────┐     ┌──────────────┐ 
 │home-router├-----┤tp-link-router│ 
 └─────┬─────┘     └───────┬──────┘ 
       |                   |        
   ┌───┴────┐              |        
   │printer&│        ┌─────┴────┐   
   │scanner │        │windows-pc│   
   └────────┘        └──────────┘   
                                    

When I connect the windows-pc directly to the home-router, both printing and scanning works. But when in the configuration above (with the 'standard TCP/ip port' configured to the correct ip), only printing is functional eventhough the printer is marked as offline by windows.

So the question is, how do I 'expose' the printer/scanner from the tp-link-router to the windows-pc so that all the functionalities (i.e. printing & scanning) work?

When researching it all points to port-forewarding, but from what I understand from it; this is the reversed case? So how do we achieve this?