SMC Networks SMC6752AL2 manual Configuring Local/Remote Logon Authentication

RADIUS/

TACACS+ server

Web

Telnet

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.

console

CONFIGURING THE SWITCH

CLI – Assign a user name to access-level 15 (i.e., administrator), then specify the password.

Console(config)#username bob access-level 15 4-35

Console(config)#username bob password 0 smith

Console(config)#

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 TACACS+ protocols.

Remote

Authentication Dial-in User Service (RADIUS) and

Terminal Access Controller Access Control System Plus (TACACS+) 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 TACACS+ 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 TACACS+ encrypts the entire body of the packet.

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