ZyXEL Communications 2WG - Manual (Page 118)

ZyWALL 2WG Support Notes
All contents copyright (c) 2006 ZyXEL Communications Corporation.
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Click Security > VPN > Connect in order to establish the IPSec VPN Tunnel connection.
Once the IPSec works correctly, you will see the message as it appears in the following screenshot, and
click “Return” to back to VPN page.
You can also check the SA by clicking the “SA Monitor” tab
STEP 5: Validate the functionality of NAT over IPSec by PING command
Once the VPN tunnel is established, we can ping the following hosts to ensure the NAT function is work
correctly.