HotSpot and Public IP address

Hi,
i’d like to make a hotspot but problem occurred.
My configuration is:
PPPOE concentrator/hotspot---- ------- Access point


I created bridge interface (b2) and a tunnel eoip (tunnel)
I set hotspot interface as b2 on PPPOE concentrator, assigned a public IP, dns 0.0.0.0
I assigned wlan1 on Access point as b2 port. Also tunnel is a b2 port.

Hotspot interface is a public ip address and also the pool. But why user can’t open webpage but it’s ok if they put ip address in u.r.l box?
Why their ip in site like myipaddress is the wan ip address interface?

Someone could help me?

Tnx in advance.
Levis