Cisco WLC External Captive Portal

This is an example of a PHP based external captive portal for Cisco WLC. The code given here can be used to setup a basic captive portal featuring an HTML login form. This code is based on the following repository (refer to its README for further details):

https://github.com/stuartst/cisco-wlc-captive-portal

Apache Access Log:

108.21.227.148 - - [25/Nov/2021:03:32:54 +0000] "GET /cisco-wlc-captive-portal/index.php?switch_url=http://wifi-guest.equinox.com/login.html&ap_mac=00:ea:bd:95:96:20&client_mac=f8:ff:c2:39:ca:71&wlan=Captive&redirect=captive.apple.com/hotspot-detect.html HTTP/1.1" 200 639 "http://captive.apple.com/hotspot-detect.html" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_6) AppleWebKit/605.1.15 (KHTML, like Gecko)"

FreeRADIUS Debug Log:

(0) Received Access-Request Id 0 from 108.21.227.148:32769 to 10.250.201.61:1812 length 239
(0)   User-Name = "test123"
(0)   User-Password = "test123"
(0)   Service-Type = Login-User
(0)   NAS-IP-Address = 10.1.10.15
(0)   NAS-Port = 1
(0)   Cisco-AVPair = "audit-session-id=0a010a0f00000052619f0405"
(0)   Framed-IP-Address = 10.255.1.208
(0)   Acct-Session-Id = "619f0405/f8:ff:c2:39:ca:71/220"
(0)   NAS-Identifier = "wlc"
(0)   NAS-Port-Type = Wireless-802.11
(0)   Airespace-Wlan-Id = 4
(0)   Calling-Station-Id = "f8-ff-c2-39-ca-71"
(0)   Called-Station-Id = "00-fd-22-ca-9f-40:Captive"
(0)   Message-Authenticator = 0x58f2b7ae1e8a783c72131251c43d59d4