ZyXEL Communications 200 Series - Manual (Page 316)

Chapter 16 Virtual Servers
ZyWALL USG 100/200 Series User’s Guide
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Figure 219 NAT 1:1 Example Policy Route
Click Network > Routing > Policy Route > Add and configure the screen as shown next. Be
careful of where you create the route as routes are ordered in descending priority.
Figure 220 Create a Policy Route
NAT 1:1 Firewall Rule
Create a firewall rule to allow access from the WAN zone to the mail server in the LAN1 zone.
Be careful of where you create the rule as firewall rules are ordered in descending priority.
192.168.1.21
Source 1.1.1.1
NAT
SMTP
Source 192.168.1.1
SMTP
LAN1