ZyXEL Communications ZYWALL USG 2000 Support Notes page 69

Step 9 The Connect L2TP to ZyWALL screen appears. Click Properties > Security.
Step 10 Click Security, select Advanced (custom settings), and click Settings.
Step 11 Select Optional encryption allowed (connect even if no encryption) and the Allow
these protocols radio button. Select Unencrypted password (PAP) and clear all of
the other check boxes. Click OK.
All contents copyright (c) 2008 ZyXEL Communications Corporation.
ZyWALL USG 2000 Support Notes
69