Extreme Networks ExtremeWare 7.2e, Installation And User Manual

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64 ExtremeWare 7.2e Installation and User Guide
Managing the Switch
NOTE
You cannot configure RADIUS and at the same time.
RADIUS Client
Remote Authentication Dial In User Service (RADIUS, RFC 2138) is a mechanism for authenticating and
centrally administrating access to network nodes. The ExtremeWare RADIUS client implementation
allows authentication for Telnet, Vista, or console access to the switch.
Terminal Access Controller Access Control System Plus () is a mechanism for providing
authentication, authorization, and accounting on a centralized server, similar in function to the RADIUS
client. The ExtremeWare version of is used to authenticate prospective users who are
attempting to administer the switch. is used to communicate between the switch and an
authentication database.
Configuring RADIUS Client and
For detailed information about configuring a RADIUS client or , see Chapter 9.
Using Network Login
Network login is a feature designed to control the admission of user packets into a network by giving
addresses only to users that have been properly authenticated. Network login is controlled by an
administrator on a per port, per VLAN basis and uses an integration of DHCP, user authentication over
the web interface, and, sometimes, a RADIUS server to provide a user database or specific configuration
details.
When network login is enabled on a port in a VLAN, that port will not forward any packets until
authentication takes place.
For detailed information about using Network login, see Chapter 9.
Using the Simple Network Time Protocol
ExtremeWare supports the client portion of the Simple Network Time Protocol (SNTP) Version 3 based
on RFC1769. SNTP can be used by the switch to update and synchronize its internal clock from a
Network Time Protocol (NTP) server. When enabled, the switch sends out a periodic query to the
indicated NTP server, or the switch listens to broadcast NTP updates. In addition, the switch supports
the configured setting for Greenwich Mean time (GMT) offset and the use of Daylight Saving Time.
These features have been tested for year 2000 compliance.