Configuration Menu 116
Table 82 RADIUS Server Configuration Menu options
Command Description
on
Enables the RADIUS server.
off
Disables the RADIUS server. This is the default.
cur
Displays the current RADIUS server parameters.
IMPORTANT: If RADIUS is enabled, you must login using RADIUS authentication when connecting
via the console or Telnet/SSH/HTTP/HTTPS. Backdoor for console is always enabled, so you can
connect using noradius and the administrator password even if the backdoor (telnet) or secure
backdoor (secbd) are disabled.
If Telnet backdoor is enabled (telnet ena), type in noradius as a backdoor to bypass RADIUS
checking, and use the administrator password to log into the switch. The switch allows this even if
RADIUS servers are available.
If secure backdoor is enabled (secbd ena), type in noradius as a backdoor to bypass RADIUS
checking, and use the administrator password to log into the switch. The switch allows this only if
RADIUS servers are not available.
TACACS+ server configuration
Command: /cfg/sys/tacacs+
[TACACS+ Server Menu]
prisrv - Set IP address of primary TACACS+ server
secsrv - Set IP address of secondary TACACS+ server
secret - Set secret for primary TACACS+ server
secret2 - Set secret for secondary TACACS+ server
port - Set TACACS+ port number
retries - Set number of TACACS+ server retries
timeout - Set timeout value of TACACS+ server retries
bckdoor - Enable/disable TACACS+ back door for telnet/ssh/http/https
secbd - Enable/disable TACACS+ secure backdoor for telnet/ssh/http/https
cmap - Enable/disable TACACS+ new privilege level mapping
usermap - Set user privilege mappings
on - Enable TACACS+ authentication
off - Disable TACACS+ authentication
cur - Display current TACACS+ settings
TACACS+ (Terminal Access Controller Access Control System) is an authentication protocol that
allows a remote access server to forward a user's logon password to an authentication server to
determine whether access can be allowed to a given system. TACACS+ and Remote Authentication
Dial-In User Service (RADIUS) protocols are more secure than the TACACS encryption protocol.
TACACS+ is described in RFC 1492.
TACACS+ protocol is more reliable than RADIUS, as TACACS+ uses the Transmission Control
Protocol (TCP) whereas RADIUS uses the User Datagram Protocol (UDP). Also, RADIUS combines
authentication and authorization in a user profile, whereas TACACS+ separates the two operations.
