Port forward from outside to LAN IP.

Hello, all!

I am fighting with a seemingly simple task. Our manager updated the router firmware and the saved settings got erased.

We have a LAN with several machines, one of them hosts a server for a resource management system and up to recently the router was set up so that users can log onto the system from home when accessing our static IP.

So I am going into Firewall ==> NAT ==> Adding a new rule, which looks like:

Chain: dstnat
Protocol: 6 (tcp)
Dst. Port 10500
In. Interface: all ethernet

Action: dst-nat
To addresses: 192.168.88.222
<== Static IP of the PC we want to access “from the outside”
To Port: 10500

But that does not work. Our internet connection comes with a static IP, it is set up in the Internet settings page.

I suspect there needs to be some additional step that makes the server accept outside traffic and route that further, but cannot figure what that may be. All the searching just basically reaffirms those couple of steps shown above - add a NAT rule, enter ports and addresses and done.

Any help? Thanks in advance.