Set Up RADIUS or TACACS+ Authentication

RADIUS is a client/server protocol and software that enables remote access servers to communicate with a central server to authenticate dial-in users and authorize their access to the requested system or service. TACACS+ is a well-established authentication protocol common to UNIX networks that allows a remote access server to forward a user's logon password to an authentication server to determine whether access can be allowed to a given system.
  1. Create a server profile.
    The server profile identifies the external authentication service and instructs the firewall how to connect to that authentication service and access the authentication credentials for your users.
    If you want to Enable Delivery of GlobalProtect Client VSAs to a RADIUS Server, you must create a RADIUS server profile.
    1. Select DeviceServer Profiles and select the type of profile (RADIUS or TACACS+).
    2. Click Add and enter a Profile Name, such as GP-User-Auth.
    3. If this profile is for a firewall with multiple virtual systems capability, select a virtual system or Shared as the Location where the profile is available.
    4. Configure the following Server Settings. These settings to all servers you include in the profile.
      • Timeout (sec)—The number of seconds before a server connection request times out due to lack of response from the authentication server.
      • Authentication Protocol—Select the protocol to use for connections to the authentication server. Choices are CHAP, PAP, or Auto.
      • (RADIUS only)Retries—The number of times the firewall trys connecting to the authentication server before dropping the request.
      • (TACACS+ only)Use single connection for all authentication to allow all TACACS+ authentication requests to occur over a single TCP session rather than separate sessions for each request.
    5. Click Add in the Servers section and then enter the necessary information for connecting to the authentication server, including the server Name, IP address or FQDN of the Server, and Port.
    6. Specify settings to enable the authentication service to authenticate the firewall. Enter the shared Secret when adding the server entry.
    7. Click OK to save the server profile.
  2. (Optional) Create an authentication profile.
    The authentication profile specifies the server profile for the portal or gateways to use when they authenticate users. On a portal or gateway, you can assign one or more authentication profiles in one or more client authentication profiles. For descriptions of how an authentication profile within a client authentication profile supports granular user authentication, see Configure a GlobalProtect Gateway and Set Up Access to the GlobalProtect Portal.
    To enable users to connect and change their own expired passwords without administrative intervention, consider using a pre-logon connect method. See Remote Access VPN with Pre-Logon for details.
    1. Select DeviceAuthentication Profile and Add a new profile.
    2. Enter a Name for the profile and then select the authentication Type (RADIUS or TACACS+).
    3. Select the RADIUS or TACACS+ authentication Server Profile. that you created in 1 from the drop-down.
    4. (RADIUS only) Enable Retrieve user group from RADIUS if you want to include this information in the authentication profile.
    5. Specify the domain name and username format. The device combines the User Domain and Username Modifier values to modify the domain/username string that a user enters during login. The device uses the modified string for authentication and uses the User Domain value for User-ID group mapping. Modifying user input is useful when the authentication service requires domain/username strings in a particular format and you don’t want to rely on users to correctly enter the domain. You can select from the following options:
      • To send only the unmodified user input, leave the User Domain blank (the default) and set the Username Modifier to the variable %USERINPUT% (the default).
      • To prepend a domain to the user input, enter a User Domain and set the Username Modifier to %USERDOMAIN%\%USERINPUT%.
      • To append a domain to the user input, enter a User Domain and set the Username Modifier to %USERINPUT%@%USERDOMAIN%.
      If the Username Modifier includes the %USERDOMAIN% variable, the User Domain value replaces any domain string that the user enters. If the User Domain is blank, that means the device removes any user-entered domain string.
    6. Select the Advanced tab.
    7. In the Allow List, Add and then select the users and groups that are allowed to authenticate with this profile. Selecting the predefined all option allows every user to authenticate. By default, the list has no entries, which means no users can authenticate.
    8. Click OK.
  3. Commit the configuration.
    Click Commit.

Related Documentation