ZyXEL Communications ZyWALL USG 2000 User Manual page 200

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 192 Filter Properties: Protocol
16 Select ZyWALL WAN_IP and click Next.
Figure 193 IP Security Policy Properties: IP Filter List
200
ZyWALL USG 2000 User's Guide