Yes. The Captive Portal Authentication profile has a server group. That is the server that is queried for captive portal. When you use clearpass, the Captive Portal authentication profile is just pointing to clearpass as a radius server.
EDIT:
To be clear, ClearPass can provide the webpage, but you can authenticate to a separate radius or ldap server using the Captive Portal Authentication Profile server group.
------------------------------
Any opinions expressed here are solely my own and not necessarily that of Hewlett Packard Enterprise or Aruba Networks.
HPE Design and Deploy Guides:
https://community.arubanetworks.com/support/migrated-knowledge-base?attachments=&communitykey=dcc83c62-1a3a-4dd8-94dc-92968ea6fff1&pageindex=0&pagesize=12&search=&sort=most_recent&viewtype=card------------------------------
Original Message:
Sent: Jun 30, 2022 10:38 PM
From: Taemin Oh
Subject: Is it possible to link using a separate web page server to use a captive portal?
For example, the Aruba controller's authentication source uses Internal DB,
but can the web login page be authenticated through an external server?