Forward to hotspot interface

Hi,
My MikrotikOS runs on a comp which has 2 network cards; 1 for the WAN, the other for the hotspot. Is it possible to forward certain traffic coming in from the WAN to the hotspot interface for AAA and other stuff?

Yes. Look at the NAT wiki manual.

Or ask a more specific question here. Generally speaking it is never necessary to forward traffic from an IP address on a router interface to another IP address the router has itself - it’s only necessary to forward traffic to devices BEHIND a router interface.

Let me be a bit specific; I have this very big headache. I’m providing internet to an office via a VLAN provided by my ISP. Anyone who connects via the hotspot interface (AP connected to that interface) are directed directly to Radius server. Now, I want to somehow direct the traffic to that interface so that it in turn is sent to the Radius server for AAA.

I tried reading that sentence several times but I don’t understand what you mean. Are you trying to log the websites people are going to?

I have a server running Radius Manager 3 and a machine with MikrotikOS. The setup is of like:

ISP—Switch—(WAN) MikrotikOS (hotspot)----AP
|
Radius Manager 3

Now, all our clients who connect to our SSID (through the APs) are first directed to the Radius Manager since they are conncted to the hotspot interface of the MIkrotikOS, which does this automatically. My problem arises when I want the same to happen to clients who are connected through the WAN interface of the MIkrotikOS for they are not directed to the radius manager. That is why, I was thinking, is there a way in which certain traffic from the WAN interface can be directed to the hotspot interface first so as to be taken through the radius manager. I hope its much clearer now.

Thanks

Yes, it is.

You cannot do that. Hotspots have to run on the first layer there interface users encounter. That is pretty much by definition impossible on WAN interfaces.