ZyXEL Communications P-334WT Support Notes page 165

P-334WT to ZyWALL Tunneling
1. Setup P-334WT
2. Setup ZyWALL
3. Troubleshooting
4. View Log
This page guides us to setup a VPN connection between P-334WT and ZyWALL router. Please note that, in addition to P-334WT to
ZyWALL, P-334WT can also talk to other VPN hardwards. The tested VPN hardware are shown below.
Cisco 1720 Router, IOS 12.2(2)XH, IP/ADSL/FW/IDS PLUS IPSEC 3DES
NetScreen 5, ScreenOS 2.6.0r6
SonicWALL SOHO 2
WatchGuard Firebox II
ZyXEL ZyWALL
Avaya VPN
Netopia VPN
III VPN
As the figure shown below, the tunnel between P-334WT and ZyWALL ensures the packets flow between PC 1 and PC 2 are
secure. Because the packets go through the IPSec tunnel are encrypted. To achieve this VPN tunnel, the settings required for each P-
334WT and ZyWALL are explained in the following sections.
The IP addresses we use in this example are as shown below.
PC 1
192.168.1.33
Note:
1. The following configurations are supposed both two VPN gateways have fixed IP addresses. If one of VPN gateways uses
dynamic IP, we enter 0.0.0.0 as the secure gateway IP address. In this case, the VPN connection can only be initiated from dynamic
side to fixed side to update its dynamic IP to the fixed side. However, if both gateways use dynamic IP addresses, it is no way to
establish VPN connection at all.
P-334WT
LAN: 192.168.1.1
WAN: 202.132.154.1
ZyWALL
LAN: 192.168.2.1
WAN: 168.10.10.66
LAN 2
192.168.2.0/24