Configuring Web-Based Authentication
When configuring customized authentication proxy web pages, follow these guidelines:
To enable the custom web pages feature, specify all four custom HTML files. If you specify fewer
•
than four files, the internal default HTML pages are used.
The four custom HTML files must be present on the flash memory of the switch. The maximum size
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of each HTML file is 8 KB.
Any images on the custom pages mu st be on an accessible HTTP server. Configure an intercept ACL
•
within the admission rule.
Any external link from a custom page requires configuration of an intercept ACL within the
•
admission rule.
T o access a valid DNS server, any name resolution required for external links or images requires
•
configuration of an intercept ACL within the admission rule.
If the custom web pages feature is enabled, a configured auth-proxy-banner is not used.
•
If the custom web pages feature is enabled, the redirection URL for successful login feature is not
•
available.
To remove the specification of a custom file, use the no form of the command.
•
Because the custom login page is a public web form, consider these guidelines for the page:
The login form must accept user entries for the username and password and must show them as
•
uname and pwd.
The custom login page should follow best practices for a web form, such as page timeout, hidden
•
password, and prevention of redundant submissions.
This example shows how to configure custom authentication proxy web pages:
Switch(config)# ip admission proxy http login page file flash:login.htm
Switch(config)# ip admission proxy http success page file flash:success.htm
Switch(config)# ip admission proxy http fail page file flash:fail.htm
Switch(config)# ip admission proxy http login expired page flash flash:expired.htm
This example shows how to verify the configuration of a custom authentication proxy web pages:
Switch# show ip admission configuration
Authentication proxy webpage
Login page
Success page
Fail Page
Login expired Page
Authentication global cache time is 60 minutes
Authentication global absolute time is 0 minutes
Authentication global init state time is 2 minutes
Authentication Proxy Session ratelimit is 100
Authentication Proxy Watch-list is disabled
Authentication Proxy Auditing is disabled
Max Login attempts per user is 5
Catalyst 3750-X and 3560-X Switch Software Configuration Guide
12-14
: flash:login.htm
: flash:success.htm
: flash:fail.htm
: flash:expired.htm
Chapter 12
Configuring Web-Based Authentication
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