I want to interconnect three different networks each having one physical port. So that seems possible, which is great. I don’t want the ports to be bridged in hardware.
The block diagram seems to be a bit misleading. I just want to make sure that the hEX does not work similar as the most of the cheap home routers with basically two routing interfaces where one is connected to an internal switch (so only two networks can be routed).
I would still use the device’s block diagram. Many do have just two routing interfaces plus an internal switch. Sometimes the internal switch is more capable, and you can have soft routing (where every routing decision is handled by the CPU).
You get what you pay for. Hex Series is an excellent router for labs, testing, setting up networks and a normal home environment and a small office.
Once you are ready AND If you can provide production level requirements, with real world data, then a model which would suit that can be recommended.
The router will be used in a networking lab for education and testing, so performance is not important.
Thanks for all the helpful answers. I have ordered a hEX and will start some experiments. If soft routing with all ports is an option, it’ll fit my needs.