ZyXEL Communications ZyWall USG 300 User Manual page 212

Chapter 8 L2TP VPN Example
15 Configure the following in the Filter Properties window's Protocol tab. Set the
protocol type to UDP from port 1701. Select To any port. Click Apply, OK, and
then Close.
Figure 208 Filter Properties: Protocol
16 Select ZyWALL WAN_IP and click Next.
Figure 209 IP Security Policy Properties: IP Filter List
212
ZyWALL USG 300 User's Guide