How to set the CP to only show a welcome page

[Fons]

Hi Guys,
at our venue in the centre of Amsterdam we provide free wifi to everyone. and its well used.
we want to give all visitors that use wifi a welcome page from an external webserver. our home page.
logins or authentication are not required.

the question: how to achieve this in the CP at pfsense. or is there another way to get this done.

love to hear from you, regards, Fons

[Derelict]

Set the authentication to "No authentication" and upload CP HTML that doesn't include any fields but contains the appropriate form submit button somewhere. (You can test with the stock HTML.  When "No authentication" is selected, the fields are ignored.)

You also have to make sure your CP hard timeout is shorter than your DHCP lease time and your DHCP pool is large enough to handle peaks.

I believe you should be able to use the Pre-authentication redirect URL to redirect to your external web server and have that page include the proper Submit to the captive portal but I don't know why you'd do that.  I'd just have pfSense do the portal page.  You can host/link to heavy content outside if you have the proper Allowed IP Address/Hostname entries.