PLANET CS-2001 - Manual (Page 197)

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Step 28. Under
Policy > Outgoing, set as below: （Figure 8-35）
 Select the defined user group for Authentication User.
 Click OK.
（Figure 8-36）
Figure 8-35 Applying the Authentication to a Policy
Figure 8-36 The Completed Policy Settings
Step 29. The authentication login screen will appear in the web browser with
which a LAN user tries to surf the Internet. Internet access will be available
after applying the valid user name and password to the corresponding fields
in the login screen. （Figure 8-37）
Figure 8-37 The Authentication Login Screen