Dell PowerEdge M420 Configuration Manual page 462

From the Captive Portal Configuration page, click Add to create a new
Captive Portal instance.
Figure 17-6. Add Captive Portal Configuration
From the Captive Portal Configuration page, click Summary to view
summary information about the Captive Portal instances configured on the
switch.
Figure 17-7. Captive Portal Summary
462
Configuring a Captive Portal