Sorry bluemoon.
I have 3 Ethers active. one for Hotspot and LAN and two others for internet.
If i'm gonna open my webfig or UM, I just enter another Ether's IP from client computer. should note that the only one who knows it it's me. so no one can open it easily so it's more secure.
So I think instead of Walled Gardening you router's IP in order to open in from Hotspot interface you can easily enter 2nd Ether's IP so you will access to your UM. I don't call this security because it's the basis of it.
I hope you understand my point.
Thanks for your post. Our problem is different. I have two VLANs
192.168.42.1 - Vlan 42 Hotspot (login.myhotspot.xyz)
192.168.46.1 - Vlan 46 Signup Page
I'm trying to set a Hotspot. Hotspot is working fine, but when I try to signup a new account through 192.168.42.1/user/signup or login.myhotspot.xyz/user/signup, I am getting 404 Not Found error but hotspot user (vlan 42) can access same sign up page through 192.18.46.1/user/signup (vlan 46) but they can also see 192.168.46.1 (Router Login Page). How to deal with Error 404 and access UM Sign Up page from my hotspot vlan or prevent access to router login page and just allow sign up page through Vlan 46?
Walled garden is enabled and allowed