As shown in Figure 12-3, to access the NAS, the FTP users should pass the RADIUS authentication.
After the configurations are complete, it is found that the legal remote user user001@userdomain is denied to access the NAS through FTP (RADIUS authentication is enabled on the NAS.)
The NAS address is not added.
The shared key set on the NAS is incorrect.
The user name is incorrect.
The passwords are not identical.
If RADIUS authentication fails, perform the following steps to solve the problem:
Check whether the NAS and the RADIUS server can communicate with each other.
Check whether the authentication succeeds.
Check whether the authorization succeeds.
Check the debugging information on the NAS and the output on the RADIUS server to locate the fault.