H3C Technologies H3C S6300 Series Switches - Manual (Page 75)

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• The authentication and accounting UDP ports configured on the NAS are incorrect.
• The RADIUS server's authentication and accounting port numbers are being used by other
applications.
Solution
To resolve the problem:
1. Check the following items:
{
The link between the NAS and the RADIUS server work well at both the physical and data link
layers.
{
The IP address of the RADIUS server is correctly configured on the NAS.
{
The authentication and accounting UDP port numbers configured on the NAS are the same as
those of the RADIUS server.
{
The RADIUS server's authentication and accounting port numbers are available.
2. If the problem persists, contact H3C Support.
RADIUS accounting error
Symptom
A user is authenticated and authorized, but accounting for the user is not normal.
Analysis
The accounting server configuration on the NAS is not correct. Possible reasons include:
• The accounting port number configured on the NAS is incorrect.
• The accounting server IP address configured on the NAS is incorrect. For example, the NAS is
configured to use a single server to provide authentication, authorization, and accounting services,
but in fact the services are provided by different servers.
Solution
To resolve the problem:
1. Check the following items:
{
The accounting port number is correctly configured.
{
The accounting server IP address is correctly configured on the NAS.
2. If the problem persists, contact H3C Support.
Troubleshooting HWTACACS
Similar to RADIUS troubleshooting. See " Troubleshooting RADIUS ."
Troubleshooting LDAP
Symptom
User authentication fails.