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Securing Access to the Switch 13
Chapter 1: Accessing the Switch
Switch User Accounts
The user accounts listed in Table 4 can be defined in the RADIUS server dictionary
file.
RADIUS Attributes for EX2500 User Privileges
When the user logs in, the switch authenticates his or her level of access by sending
the RADIUS access request, that is, the client authentication request, to the RADIUS
authentication server.
If the remote user is successfully authenticated by the authentication server, the
switch will verify the privileges of the remote user and authorize the appropriate
access. The administrator has an option to allow secure backdoor access via Telnet,
SSH, or the Web Device Manager. Secure backdoor provides switch access when
the RADIUS servers cannot be reached. You always can access the switch via the
console port, by using noradius and the administrator password, whether secure
backdoor is enabled or not.
All user privileges, other than those assigned to the Administrator, have to be
defined in the RADIUS dictionary. RADIUS attribute 6, which is built into all
RADIUS servers, defines the administrator. The filename of the dictionary is
RADIUS vendor-dependent. Table 5 shows the RADIUS attributes defined for
EX2500 user privilege levels.
Table 4: User Access Levels
User Account Description and Tasks Performed Password
User The User has no direct responsibility for switch management.
He or she can view all switch status information and statistics
but cannot make any configuration changes to the switch.
user
Operator The Operator manages all functions of the switch. The
Operator can reset ports, except the management port.
oper
Administrator The super-user Administrator has complete access to all
commands, information, and configuration commands on the
switch, including the ability to change both the user and
administrator passwords.
admin
NOTE: To obtain the RADIUS backdoor password for your EX2500 switch, contact
technical support.
Table 5: EX2500-Proprietary Attributes for RADIUS
Username/Access User-Service-Type Value
User Vendor-supplied 255
Operator Vendor-supplied 252
Admin Vendor-supplied 6