DELL N3000 User Manual

Configuring Port and System Security

You can configure the switch to send SNMP trap messages to any enabled 

SNMP Trap Receivers for several Captive Portal events, such as when a 

Captive Portal user has an authentication failure or when a Captive Portal 

user successfully connects to the network. If you enable the traps, the switch 

also writes a message to the trap log when the event occurs. To enable the 

Captive Portal traps, see "Configuring SNMP Notifications (Traps and 

Before enabling the Captive Portal feature, decide what type (or types) of 

authentication to require. Since the Dell Networking 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.