I am not 100% certain I fully understand how the Aruba Instant solution connects to ClearPass Guest for external Captive Portal.
We are going to host the ClearPass Virtual appliance within a data centre.
When an unauthenticated guest user connects to the Guest SSID, I understand that Instant AP redirects to the ClearPass captive portal page.
Now this is where I am unsure. Does the Aruba Instant act as a proxy, and redirect from its own native VLAN address, or does the client communicate with ClearPass from the Guest VLAN?
My assumption has always been that it communicates as a proxy on the native VLAN, however when asked by engineers whether additional ACL policies need to be configured on the wired network to support this, I realised I was not 100% sure.
Your assistance will be appreciated.
Garrick