
ZyWALL 70 Support Notes
All contents copyright (c) 2005 ZyXEL Communications Corporation.
35
LAN Segment DMZ Segment WAN1 WAN2
192.168.1.0/24 192.168.2.0/24
FTP: 192.168.2.21
Mail: 192.168.2.25
WEB: 192.168.2.80
ADSL PPPoE dynamic
NAT Type: SUA
Ethernet
192.168.3.0/24
NAT Type: None
1.
WAN Setup (Go to Network >> WAN )
Step1. Setup operation mode of ZyWALL. Select Active/Passive (Fail Over) mode. So that when
WAN1 is down, WAN2 can take over connectivity. If MIS wants to let ZyWALL fall back to WAN1
when WAN1 is available again, then check the box of “Fall Back to Primary WAN When
Possible”.
Step2. Configure Route Priority for WAN1 and WAN2. The metric number works like priority, lower
number gets higher priority. In this example, because WAN1 is low-cost, so we set WAN1’s metric
number to 1, and WAN2 to 2.
Step3. Setup connectivity check. Specify a public IP address for WAN1 and WAN2 respectively.
This IP address will be a check point for ZyWALL, ZyWALL periodically ping the IP address to
check the connectivity of WAN1 and WAN2.