5.5. Procedure – Authenticating users to a RADIUS server


PSM can authenticate its users to an external RADIUS server. Group memberships of the users must be managed either locally on PSM or in an LDAP database.


The challenge/response authentication method is currently not supported. Other authentication methods (for example password, SecureID) should work.

To authenticate PSM users to a RADIUS server, complete the following steps:


  1. Navigate to AAA > Settings.

    Figure 5.5. Configuring RADIUS authentication

    Configuring RADIUS authentication
  2. Set the Authentication method field to RADIUS.

    The status information displayed ([NOT CONFIGURED] and [CONFIGURED]) indicates whether or not you have provided the shared secret required to access the RADIUS server.

  3. Enter the IP address or domain name of the RADIUS server into the Address field.

    Use an IPv4 address.

  4. Click Change, and enter the password that PSM can use to access the server into the Shared secret field.


    PSM accepts passwords that are not longer than 150 characters. The following special characters can be used: !"#$%&'()*+,-./:;<=>[email protected][\]^-`{|}

    Click Update.

  5. To use the Password Authentication Protocol, select PAP. To use the Challenge-Handshake Authentication Protocol, select CHAP.

  6. To add more RADIUS servers, click and repeat Steps 2-4.

    Repeat this step to add multiple servers. If a server is unreachable, PSM will try to connect to the next server in the list in failover fashion.

  7. When configuring RADIUS authentication with locally managed user accounts, complete the following steps.

    1. Set Password expiration to 0.

    2. Set Number of passwords to remember to 0.

    3. Set Minimal password strength to disabled.

    4. Set Cracklib check on password to disabled.

  8. Warning

    After you commit this configuration, the PSM web interface will be available only after successfully authenticating to the RADIUS server. Note that the default admin account of PSM will be able to login normally, even if the RADIUS server is unaccessible.

    Click .