ZyXEL Communications USG40 User Manual page 317

Chapter 17 Web Authentication
Configure the Gateway IP address, Gateway Port and PreShareKey exactly as you have done in
the ZyWALL/USG Configuration > Web Authentication > SSO screen. If you want to use
Generate Key to have the SSO create a random password, select Check to show PreShareKey as
clear Text so as to see the password, then copy and paste it to the ZyWALL/USG.
After all SSO agent configurations are done, right-click the SSO icon in the system tray and select
Enable ZyXEL SSO Agent.
ZyWALL/USG Series User's Guide
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