How to set up hotspot in an existing environment?

Question

System administration

Good day! The situation is as follows: there are about 5 Asus WL-500 routers, they have wi-fi, a couple of local machines, several webcams. You need to set up HotSpot for wi-fi, but this function is not provided for in the existing model, and you don’t want to change (especially flash on WRT) equipment and set everything up again. There was an idea - to buy for 2-3tys. mikrotik with HotSpot and put it at the very beginning of the chain (we insert the provider's wire into it and connect everything that is already to it). As I understand it, this is real .... we just redirect wi-fi from other routers to mikrotik's hotSpot .... and the rest is unchanged - transparently goes further.
Question: 1) Do I understand everything correctly and is it really possible to do this?
2) How?
3) Is there a cheaper way? (wi-fi uses no more than 25 devices at the same time)

Answer 1

Yes really. The script is good, not the best, but good.
Problems will be with those devices that should receive the Internet just like that (without any left hotspot authorization), cameras, printers and tydy.
In the general case, everything will work like this:
1. For all devices, Mikrotik becomes the default gateway
2. Close the entire l2 network to it and let traffic through Mikrotik, if all your routers are connected by copper, then Mikrotik to the same switch, if part of which are repeaters / repeaters, then connect the tick to the main one, the rest are unchanged.
3. Set up Hotspot on the tick, tune it and tydy.
4. We select a group of devices - we give them the Internet. If Asus supports VLANs and multiple SSIDs, then it's better to organize a second network - closed with blackjack andI send with enhanced authorization but without hotspot.

Answer 2

1) Yes
2) Transfer all points to AP mode so that they are not routers.
3) Yes, raise a hotspot on any existing server or reflash routers to firmware with a hotspot.

Answer 3

If it is possible to remove repeaters from the circuit, reconfigure so that all poppies would glow on the Mikrotik itself. Devices such as printers, cameras, etc., start up through ip binding by binding the poppy address of the devices. The rest via http authorization