Description: Enable/disable the device web server.
o management-url - Specify URL to load when the [?] button is clicked on the device's web interface.
o support-url - Specify URL to load when the Support tab is clicked on the device's web interface.
o plaintext - optional keyword indicating that the http server should be enabled with no security. If no parameters are specified, 'plaintext' is implied.
o ssl - required keyword indicating that the http server should be enabled with Secure Sockets Layer support.
Note: The 'ssl' and 'plaintext' variants of the command function independently of each other. Enabling http+ssl does not automatically prevent the device from accepting plaintext connections; you must explicitly disable plaintext connections with the command 'no web-management plaintext'
o TCP-PORT - optional - TCP port on which the https server should listen for connections. If not specified, this defaults to port 443. This is configurable for ssl connections only; the plaintext server always listens on the well-known port 80.