HP ProCurve 2510-24, Manual

Page: 76 / 318

4-2
Authentication
Configuring on the Switch
Overview
(Terminal Access Controller Access Control ) authentica-
tion enables you to use a central server to allow or deny access to the switch
(and other TACACS-aware devices) in your network. This means that you can
use a central database to create multiple unique username/password sets with
associated privilege levels for use by individuals who have reason to access
the switch either locally (from the switch’s console port) or remotely (Telnet
or SSH).
Figure 4-1. Example of Operation
in the switch manages authentication of logon attempts through
either the Console port or remote connection (Telnet, SSH). uses
an authentication hierarchy consisting of (1) remote passwords assigned in a
server and (2) local passwords configured on the switch. That is,
Feature Default Menu CLI Web
view the switch’s authentication configuration n/a — page 4-9 —
view the switch’s server contact
configuration n/a — page
4-10 —
configure the switch’s authentication methods disabled — page
4-11 —
configure the switch to contact server(s) disabled — page
4-18 —
B
ProCurve Switch
Configured for
Operation
Terminal “ A ” Directly
Accessing the Switch
Via Switch’s Console
Port
Terminal “ B ” Remotely Accessing The Switch Via Telnet
A
Primary
Server
The switch passes the login
requests from terminals A and B
to the server for
authentication. The
server determines whether to
allow access to the switch and
what privilege level to allow for
a given access request.
Access Request A1 - A4 : Path for Request from
Terminal A (Through Console Port)
TACACS Server B1 - B4: Path for Request from
Response Terminal B (Through Telnet)
B1
A2 or
B2
A3 or
B3
B4
A1
A4