ASDM Book 1: Cisco ASA Series General Operations ASDM Configuration Guide, 7.2

Task Flow for Configuring Windows NT Servers

Step 1 Add a AAA server group. See Configuring Windows NT Server Groups.

Step 2 For a server group, add a server to the group. See Adding a Windows NT Server to a Group.

Configuring Windows NT Server Groups

If you want to use a Windows NT server for authentication, authorization, or accounting, you must first create at least one Windows NT server group and add one or more servers to each group. You identify Windows NT server groups by name.

To add a Windows NT server group, perform the following steps:

Detailed Steps

Step 1 Choose Configuration > Device Management > Users/AAA > AAA Server Groups.

Step 2 In the AAA Server Groups area, click Add.

The Add AAA Server Group dialog box appears.

Step 3 In the Server Group field, enter a name for the group.

Step 4 From the Protocol drop-down list, choose the NT Domain server type.

Note A warning message appears, indicating that support for NT Domain server authentication will be removed in an upcoming major release.

Step 5 In the Reactivation Mode field, click Depletion or Timed.

In Depletion mode, failed servers are reactivated only after all of the servers in the group are inactive.

In Timed mode, failed servers are reactivated after 30 seconds of down time.

Step 6 If you chose the Depletion reactivation mode, enter a time interval in the Dead Time field.

The Dead Time is the duration of time, in minutes, that elapses between the disabling of the last server in a group and the subsequent re-enabling of all servers.

Step 7 In the Max Failed Attempts field, add the number of failed attempts allowed.

This option sets the number of failed connection attempts allowed before declaring a nonresponsive server to be inactive.

Step 8 Click OK.

The Add AAA Server Group dialog box closes, and the new server group is added to the AAA Server Groups table.

Step 9 In the AAA Server Groups dialog box, click Apply to save the changes to the running configuration.

Adding a Windows NT Server to a Group

To add a Windows NT server to a group, perform the following steps:

Detailed Steps

Step 1 Choose Configuration > Device Management > Users/AAA > AAA Server Groups, and in the AAA Server Groups area, click the server group to which you want to add a server.

The row is highlighted in the table.

Step 2 In the Servers in the Selected Group area (lower pane), click Add.

The Add AAA Server Group dialog box appears for the server group.

Step 3 From the Interface Name drop-down list, choose the interface name on which the authentication server resides.

Step 4 In the Server Name or IP Address field, add either a server name or IP address for the server that you are adding to the group.

Step 5 In the Timeout field, either add a timeout value or keep the default. The timeout is the duration of time, in seconds, that the ASA waits for a response from the primary server before sending the request to the backup server.

Step 6 Specify the server port. The server port is either port number 139, or the TCP port number used by the ASA to communicate with the Windows NT server.

Step 7 Specify the name of the domain controller. The domain controller is the hostname (no more than 15 characters) of the NT Primary Domain Controller for this server (for example, PDC01). You must enter a name, and it must be the correct hostname for the server whose IP address you added in the Authentication Server Address field. If the name is incorrect, authentication fails.

Step 8 Click OK.

The Add AAA Server Group dialog box closes, and the AAA server is added to the AAA server group.

Step 9 In the AAA Server Groups pane, click Apply to save the changes to the running configuration.