Configuring Local/Remote Logon Authentication
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the network. An authentication server contains a database of multiple user name/
password pairs with associated privilege levels for each user that requires
management access to the switch.
RADIUS uses UDP while uses TCP. UDP only offers best effort delivery,
while TCP offers a connection-oriented transport. Also, note that RADIUS encrypts
only the password in the access-request packet from the client to the server, while
encrypts the entire body of the packet.
Command Usage
• By default, management access is always checked against the authentication
database stored on the local switch. If a remote authentication server is used, you
must specify the authentication sequence and the corresponding parameters for
the remote authentication protocol. Local and remote logon authentication control
management access via the console port, web browser, or Telnet.
• RADIUS and logon authentication assign a specific privilege level for
each user name/password pair. The user name, password, and privilege level
must be configured on the authentication server.
• You can specify up to three authentication methods for any user to indicate the
authentication sequence. For example, if you select (1) RADIUS, (2) TACACS and
(3) Local, the user name and password on the RADIUS server is verified first. If the
RADIUS server is not available, then authentication is attempted using the
server, and finally the local user name and password is checked.
Command Attributes
•
Authentication
– Select the authentication, or authentication sequence required:
-
Local
– User authentication is performed only locally by the switch.
-
Radius
– User authentication is performed using a RADIUS server only.
-
TACACS
– User authentication is performed using a server only.
- [authentication sequence] – User authentication is performed by up to three
authentication methods in the indicated sequence.
• RADIUS Settings
-
Global
– Provides globally applicable RADIUS settings.
-
Server Index
– Specifies one of five RADIUS servers that may be configured.
The switch attempts authentication using the listed sequence of servers. The
process ends when a server either approves or denies access to a user.
-
Server IP Address
– Address of authentication server. (Default: 10.1.0.1)
-
Server Port Number
– Network (UDP) port of authentication server used for
authentication messages. (Range: 1-65535; Default: 1812)
-
Secret Text String
– Encryption key used to authenticate logon access for
client. Do not use blank spaces in the string. (Maximum length: 48 characters)
-
Number of Server Transmits
– Number of times the switch tries to authenticate
logon access via the authentication server. (Range: 1-30; Default: 2)
-
Timeout for a reply
– The number of seconds the switch waits for a reply from
the RADIUS server before it resends the request. (Range: 1-65535; Default: 5)
Summary of Contents for 8926EM
Page 6: ...ii ...
Page 34: ...Getting Started ...
Page 44: ...Introduction 1 10 1 ...
Page 62: ...Initial Configuration 2 18 2 ...
Page 64: ...Switch Management ...
Page 76: ...Configuring the Switch 3 12 3 ...
Page 118: ...Basic Management Tasks 4 42 4 ...
Page 164: ...User Authentication 6 28 6 ...
Page 176: ...Access Control Lists 7 12 7 ...
Page 284: ...Quality of Service 14 8 14 ...
Page 294: ...Multicast Filtering 15 10 15 ...
Page 300: ...Domain Name Service 16 6 16 ...
Page 310: ...Dynamic Host Configuration Protocol 17 10 17 ...
Page 320: ...Configuring Router Redundancy 18 10 18 ...
Page 344: ...IP Routing 19 24 19 ...
Page 356: ...Unicast Routing 20 12 20 Web Click Routing Protocol RIP Statistics Figure 20 5 RIP Statistics ...
Page 386: ...Unicast Routing 20 42 20 ...
Page 388: ...Command Line Interface ...
Page 400: ...Overview of the Command Line Interface 21 12 21 ...
Page 466: ...SNMP Commands 24 16 24 ...
Page 520: ...Access Control List Commands 26 18 26 ...
Page 546: ...Rate Limit Commands 30 2 30 ...
Page 612: ...VLAN Commands 34 24 34 ...
Page 626: ...Class of Service Commands 35 14 35 ...
Page 670: ...DHCP Commands 39 16 39 ...
Page 716: ...IP Interface Commands 41 36 41 ...
Page 768: ...IP Routing Commands 42 52 42 ...
Page 770: ...Appendices ...
Page 791: ......