Is it possible to forward a port through a router in bridge mode?

Question

Network administration

There is a router (Innbox G2301) through which fiber is connected, it does not have an admin panel and, as they explained to me, it works in bridge mode. I need to forward a port to an external device. So I was advised in those support after their router to put my router where and set up portforwarding.
I tried, but it didn't work. Is this even possible, or am I doing something wrong?

Answer 1

Yes it is possible.
If the router operates in bridge mode, then it does not perform its functions (does not route traffic), in fact, a router in bridge mode is a stupid switch (switch), it transparently passes traffic from your computer to the world.
If you have a device connected to this router, the port of which you want to forward to the external network, then ... You don’t need to forward anything, since this device already looks directly into the external network (I repeat the router in bridge mode for traffic is absolutely transparent), and if something does not work, then you need to deal with the firewall on the computer.
PS
In other words, if you want to practice port forwarding, you can do, as they said in technical support, put your router after their router and practice.