Configuring a Captive Portal 447
also writes a message to the trap log when the event occurs. To enable the 
Captive Portal traps, see "Configuring SNMP Notifications (Traps and 
Informs)" on page 341.
What Factors Should Be Considered When Designing and Configuring a 
Captive Portal?
Before enabling the Captive Portal feature, decide what type (or types) of 
authentication to require. Since the PowerConnect 7000 Series switches 
support up to 10 different Captive Portal instances, you can configure one 
Captive Portal that requires a username and password and another that only 
requires the username. For each Captive Portal, you can customize the 
welcome screen, including the colors and logo.
If you require authentication, consider the number of users that must exist in 
the user database. The local user database supports up to 128 users. If you 
need to support more than 128 authenticated users, you must use a remote 
RADIUS server for authentication.
You can specify whether the captive portal uses HTTP or HTTPS as the 
protocol during the user verification process. HTTP does not use encryption 
during verification, and HTTPS uses the Secure Sockets Layer (SSL), which 
requires a certificate to provide encryption. The certificate is presented to the 
user at connection time.
The initial Web page that a user sees when he or she connects to the Captive 
Portal can be customized. You can change the logo, color schemes, welcome 
messages, and all text on the page, including the field and button labels. The 
welcome page the user sees after a successful verification or authentication 
can also be customized.