Connecting multiple ESP32 CAMs to an external network via FunBox 3 - DMZ configuration

Hello
How to connect from an external internet network with the ESP32 CAM ?
I have a FunBox 3 router and with one camera there is no problem to connect, after setting the appropriate rule in the DMZ tab of the router but how to do this when I have four ? In the internal network over WIFI everything works in the web browser, after entering the IP (set as fixed) of the individual cameras.

How do you connect from the outside?
Do you have a public IP?

In the DMZ configuration, after configuring one camera to a fixed IP, the IP is displayed after entering which, I connect to this one camera.

sosarek wrote:

Do you have a public IP?

olo114 wrote:

after I configure one camera to a fixed IP, there is an IP displayed after I enter which, I connect to that one camera.

On the local network or from outside? Try to give as much detail as possible.

From the outside, there is a connection to only one camera, the one listed in the DMZ tab, with the others connected only on the local network. All cameras have fixed IP

This is rather not a topic of ESP, but of computer networks.
DMZ can be done only for one device, if you want to access more cameras you have to redirect the ports. If the router does not have such an option, then you buy your own and expose it to the DMZ and in it you would redirect the ports, but there are videos on the web on how to do forwarding in FUNBOX.
https://www.youtube.com/watch?v=wMuihTW16_w&ab_channel=OrangePolska it is up to 6, but in the comments one that in 3 worked better, so it is also.
Only you need to know the port of the camera. How I redirect FTP is e.g. I have an IP 192.168.2.44, I redirect port 5543 to 192.168.2.44 and port 21 , then in the laptop I specify external IP:5543 and enter my FTP. Of course instead of the external IP there could be a name if the operator gives it, or you have some other service with something like that. So to each camera you would give this your IP + a port number of your choice, each of which is redirected to the same port but different IPs of the internal camera.