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Enhancements in Release F.04.08
Configuring RADIUS Authentication and Accounting
Configuring RADIUS Authentication and Accounting
RADIUS (Remote Authentication Dial-In User Service) enables you to use up to three servers (one
primary server and one or two backups) and maintain separate authentication and accounting for
each RADIUS server employed. For authentication, this allows a different password for each user
instead of having to rely on maintaining and distributing switch-specific passwords to all users. For
accounting, this can help you track network resource usage.
Authentication. You can use RADIUS to verify user identity for the following types of primary
password access to the Series 2500 switches:
■ Serial port (Console)
■ Telnet
■ SSH
■ Port-Access
An attempt to copy a client public-key file into the switch
has failed and the switch lists one of the following
messages:
Download failed: overlength key in
key file.
Download failed: too many keys in key
file.
Download failed: one or more keys is
not a valid RSA public key.
The public key file you are trying to download has one of the
following problems:
• A key in the file is too long. The maximum key length is
1024 characters, including spaces. This could also mean
that two or more keys are merged together instead of
being separated by a <CR><LF>.
• There are more than ten public keys in the key file.
• One or more keys in the file is corrupted or is not a valid
rsa public key.
Client ceases to respond ("hangs") during connection
phase.
The switch does not support data compression in an SSH
session. Clients will often have compression turned on by
default, but will disable it during the negotiation phase. A
client which does not recognize the compression-request
FAILURE response may fail when attempting to connect.
Ensure that compression is turned off before attempting a
connection to prevent this problem.
Feature Default Menu CLI Web
Configuring RADIUS Authentication None n/a page 105 n/a
Configuring RADIUS Accounting None n/a page 114 n/a
Viewing RADIUS Statistics n/a n/a page 121 n/a
Symptom Possible Cause