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[ScreenOS] How to make a NetScreen firewall use an external server for authentication



Article ID: KB7200 KB Last Updated: 20 Feb 2020Version: 7.0
This article provides information on how to make a NetScreen firewall use an external server for authentication.
  • Radius
  • Internet Authentication Server /  IAS
  • LDAP
  • SecurID
  • External Authentication
  • Xauth

Note: This solution is applicable to ScreenOS 4.0.0 or later.

For all types of authentication (including administration, firewall user authentication, L2TP, and XAuth), the following options are available:

  • Local authentication database on the NetScreen device

  • An external authentication server (ie RADIUS)

Note: The admin type external authentication server cannot be mixed with Auth, L2TP, or XAuth.  If you want to use the same authentication server for Admin, along with any of the other attributes, you need to create a second authentication server for the non-Admin attributes.

To create an external authentication server via the WebUI, perform the following procedure:

  1. Go to Configuration > Auth > Auth Servers.

  2. Click New.

  3. Type a name for this Auth server (i.e. firewall1)

  4. Type an IP address or domain name for this authentication server (i.e.

  5. (Optional) Select up to two backup authentication servers (in case the primary server fails) (i.e.,

  6. Select the account type (admin cannot be mixed with the others). (i.e. admin)

  7. For RADIUS, type a shared secret. (i.e. $ABC123)

  8. Click OK.

To create the same via the CLI:
set auth-server firewall1 type radius
set auth-server firewall1 server-name
set auth-server firewall1 backup1
set auth-server firewall1 backup2
set auth-server firewall1 timeout 10
set auth-server firewall1 account-type admin
set auth-server firewall1 radius port 1645
set auth-server firewall1 radius timeout 3
set auth-server firewall1 radius secret $ABC123

For detailed examples, refer to the Concepts & Examples ScreenOS Reference Guide Release 6.3.0, Rev. 02.

Modification History:
2020-02-20: minor non-technical edits.
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