User guide

Managing serial console switches 101
If RADIUS is enabled, the following information must be set for the primary server. The RADIUS
Servers area is valid only if RADIUS is the selected authentication method. Information for the
secondary server is optional.
a. Enter the addresses of the RADIUS servers in IP dot notation in the IP Address fields. These values
cannot be loopback addresses or all zeros.
b. Enter the eight- to 24-character strings that will be used to communicate with the RADIUS servers
in the Shared Secret field. These values must also be configured on the RADIUS servers. See the
RADIUS system administrator or documentation for server-specific configuration information.
c. Enter the attributes that identify the access rights stored on the RADIUS servers for this serial
console switch in the Access Rights Id. fields. These values must also be configured on the
RADIUS servers. See the RADIUS system administrator or documentation for server-specific
configuration information.
d. Enter the UDP port numbers that will be used to communicate with the RADIUS servers, in the
range 1-65535 in the UDP Port fields.
e. Enter the number of seconds to wait for a reply from the RADIUS servers, in the range 1 to 60 in
the Time-Out fields.
f. Enter the number of attempts that will be made to authenticate a user after a time-out on the
RADIUS servers, in the range 1 to 10 in the Retry Count fields.
4. Click Apply to save any changes without exiting.
-or-
Click OK to save any changes and exit.
-or-
Click Cancel to exit without saving any changes.
Configuring session parameters for serial console switches
The Sessions subcategory specifies:
• How history buffer data is handled at the start and end of the telnet session. You can have the data
sent to the virtual terminal window automatically when a telnet session is established (Auto) or have it
held until it is explicitly requested (Hold). You can also retain the history buffer content when the
telnet session ends (Keep) or discard it (Clear).
• Whether the serial console switch automatically closes an inactive telnet session. When enabled, the
telnet session is closed when the serial console switch does not receive any data within a specified
number of minutes.
• Whether the serial console switch allows plaintext sessions.
• SSH settings, including the ability to enable and disable SSH, specify or modify an SSH
authentication mode, create an SSH key, and display the current SSH fingerprints.