Unified Security Gateway User's Guide

Chapter 26 L2TP VPN Example
ZyWALL USG 1000 User’s Guide
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Figure 254 Connect L2TP to ZyWALL: Security
11 Select Optional encryption (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.
Figure 255 Connect ZyWALL L2TP: Security > Advanced
12 Click IPSec Settings.