Configure RADIUS Authentication

Add a RADIUS server profile.

The profile defines how the firewall connects to the RADIUS server.

Select
Device
Server Profiles
RADIUS
or
Panorama
Server Profiles
RADIUS
on Panorama™and
Add
a profile.
Enter a
Profile Name
to identify the server profile.
(
Optional
) Select
Administrator Use Only
to restrict access to administrators.
Enter a
Timeout
interval in seconds after which an authentication request times out (default is 3; range is 1–120).
If you use the server profile to integrate the firewall with an MFA service, enter an interval that gives users enough time to authenticate. For example, if the MFA service prompts for a one-time password (OTP), users need time to see the OTP on their endpoint device and then enter the OTP in the MFA login page.
Enter the number of
Retries
.
Select the
Authentication Protocol
(default is
PEAP-MSCHAPv2
) that the firewall uses to authenticate to the RADIUS server.
Depending on which factors you want to use to authenticate users within your multi-factor authentication (MFA) environment, select the appropriate authentication protocol:
Username, password, and push (an automatically triggered out-of-band request)
: Supported with all authentication protocols
Push, password, token, and PIN (when password or token or PIN are provided together)
: Supported with PAP, PEAP with GTC, and EAP-TTLS with PAP
Username, password, token, and PIN, and challenge-response (when password or token or PIN are provided together)
: Supported with PAP and PEAP with GTC
If you select an EAP authentication method (PEAP-MSCHAPv2, PEAP with GTC, or EAP-TTLS with PAP), confirm that your RADIUS server supports Transport Layer Security (TLS) 1.1 or higher and that the root and intermediate certificate authorities (CAs) for your RADIUS server are included in the certificate profile associated with the RADIUS server profile. If you select an EAP method and you do not associate a correctly configured certificate profile with the RADIUS profile, authentication fails.
Add
each RADIUS server and enter the following:
Name
to identify the server
RADIUS Server
IP address or FQDN. If you use an FQDN to identify the server and you subsequently change the address, you must commit the change for the new server address to take effect.
Secret
/
Confirm Secret
is a key to encrypt passwords and can be up to 64 characters in length.
Server
Port
for authentication requests (default is 1812)
Click
OK
to save the server profile.

For redundancy, add multiple RADIUS servers in the sequence you want the firewall to use. If you have selected an EAP method, configure an authentication sequence to ensure that users will be able to successfully respond to the authentication challenge. There is no alternate authentication method with EAP: if the user fails the authentication challenge and you have not configured an authentication sequence that allows another authentication method, authentication fails.

If you are using PEAP-MSCHAPv2 with GlobalProtect, select

Allow users to change passwords after expiry

to allow GlobalProtect users to changed expired passwords to log in.

(PEAP-MSCHAPv2, PEAP with GTC, or EAP-TTLS with PAP only)

To anonymize the user’s identity in the outer tunnel that is created after authenticating with the server, select

Make Outer Identity Anonymous

.

You must configure the RADIUS server so that the entire chain allows access for anonymous users. Some RADIUS server configurations may not support anonymous outer IDs, and you may need to clear the option. When cleared, the RADIUS server transmits usernames in cleartext.

If you select an EAP authentication method, select a Certificate Profile.

Assign the RADIUS server profile to an authentication profile.

The authentication profile defines authentication settings that are common to a set of users.

Select
Device
Authentication Profile
and
Add
a profile.
Enter a
Name
to identify the authentication profile.
Set the
Type
to
RADIUS
.
Select the
Server Profile
you configured.
Select
Retrieve user group from RADIUS
to collect user group information from VSAs defined on the RADIUS server.
The firewall matches the group information against the groups you specify in the Allow List of the authentication profile.
Select
Advanced
and, in the Allow List,
Add
the users and groups that are allowed to authenticate with this authentication profile.
Click
OK
to save the authentication profile.

Configure the firewall to use the authentication profile for all administrators.

Select
Device
Setup
Management
and edit the Authentication Settings.
Select the
Authentication Profile
you configured and click
OK
.

Configure the roles and access domains that define authorization settings for administrators.

If you already defined RADIUS VSAs on the RADIUS server, the names you specify for roles and access domains on the firewall must match the VSA values.

Configure an Admin Role Profile if the administrator uses a custom role instead of a predefined (dynamic) role.
Configure an access domain if the firewall has more than one virtual system:
Select
Device
Access Domain
,
Add
an access domain, and enter a
Name
to identify the access domain.
Add
each virtual system that the administrator will access, and then click
OK
.

Commit

your changes to activate them on the firewall.

Configure the RADIUS server to authenticate and authorize administrators.

Refer to your RADIUS server documentation for the specific instructions to perform these steps:

Add the firewall IP address or hostname as the RADIUS client.
Add the administrator accounts.
If the RADIUS server profile specifies
CHAP
as the
Authentication Protocol
, you must define accounts with reversibly encrypted passwords. Otherwise, CHAP authentication will fail.
Define the vendor code for the firewall (25461) and define the RADIUS VSAs for the role, access domain, and user group of each administrator.
When you predefine dynamic administrator roles for users, use lower-case to specify the role (for example, enter
superuser
, not
SuperUser
).
When configuring the advanced vendor options on the ACS, you must set both the
Vendor Length Field Size
and
Vendor Type Field Size
to
1
. Otherwise, authentication will fail.
If you have selected an EAP method, the firewall validates the server but not the client. To ensure client validity, restrict clients by IP address or subdomain.

Verify that the RADIUS server performs authentication and authorization for administrators.

Log in the firewall web interface using an administrator account that you added to the RADIUS server.

Verify that you can access only the web interface pages that are allowed for the role you associated with the administrator.

In the

Monitor

,

Policies

, and

Objects

tabs, verify that you can access only the virtual systems that are allowed for the access domain you associated with the administrator.

In

Monitor

Authentication

, verify the

Authentication Protocol

.

Test the connection and the validity of the certificate profile using the following CLI command:

admin@PA-220 > test authentication authentication-profile auth-profile username 
<username> password 
<password>