WLC external web authentication action URL IP

[roussseau]

In external web authentication there is an action url within the html code like this:

<form method="post" action="https://x.x.x.x/login.html">

My question is what should be the IP address in this URL? Is it the WLC virtual ip like 1.1.1.1 or the web server's IP on which the page is hosted? Does it have to be https or http is also ok? Any suggestion will be much appreciated. 

[Saurav Lodh · Accepted solution]

Default, it is the virtual interface ip address