Problems using web authentication with FlexConnect APs - WLC 5508

[Demandonio]

Hi all,

I'm having some troubles with configuring Web authenthication in my environment. Here's a really basic scheme done with Paint:

I have two SSID: Guest_siteA and Guest_siteB

Already configured web authentication (with 1.1.1.1 or also 192.0.2.1 as virtual ip), and from site A it's working perfectly, because it has WLC locally.

From site B, instead, when I try to authenticate to my SSID (I'm using flexconnect), the traffic is going through the L3 switch and goes outside, without showing me the authentication page.

Is there a way to solve this?

Thank you in advance,

Antonio

[Demandonio]

Just adding this info: Site A and Site B are linked by layer 2.

DHCP server is on site A

The client on site B is obtaining the ip address from dhcp, then the web page opens (so it seems its working) but the traffic to virtual interface goes outside instead of WLC.

Thank you

[Demandonio]

Maybe is there a way to force traffic from a vlan to pass through wlc?