C
ONFIGURING
THE
S
WITCH
3-44
CLI
– Assign a user name to access-level 15 (i.e., administrator), then
specify the password.
Configuring Local/Remote Logon Authentication
Use the Authentication Settings menu to restrict management access based
on specified user names and passwords. You can manually configure access
rights on the switch, or you can use a remote access authentication server
based on RADIUS or protocols.
Remote Authentication
Dial-in User Service
(RADIUS) and Terminal
Access Controller Access
Control System Plus
() are logon
authentication protocols
that use software running
on a central server to
control access to RADIUS-aware or TACACS- aware devices on 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
Console(config)#username bob access-level 15
3-35
Console(config)#username bob password 0 smith
Console(config)#
Web
Telnet
RADIUS/
server
console
1. Client attempts management access.
2. Switch contacts authentication server.
3. Authentication server challenges client.
4. Client responds with proper password or key.
5. Authentication server approves access.
6. Switch grants management access.
Summary of Contents for 8612XL3
Page 2: ......
Page 26: ...CONTENTS xxvi ...
Page 40: ...INTRODUCTION 1 14 ...
Page 69: ...BASIC CONFIGURATION 3 15 ...
Page 175: ...PORT CONFIGURATION 3 121 ...
Page 337: ...IP ROUTING 3 283 Web Click Routing Protocol RIP Statistics ...
Page 379: ...MULTICAST ROUTING 3 325 Command Usage ...
Page 396: ...CONFIGURING THE SWITCH 3 342 ...
Page 582: ...COMMAND LINE INTERFACE 4 186 ...
Page 806: ... 224 Command Mode Privileged Exec Example Console clear vrrp 1 interface 1 counters Console ...
Page 826: ... 6 ...
Page 828: ...TROUBLESHOOTING B 2 ...
Page 838: ...GLOSSARY Glossary 10 ...
Page 845: ......