Routing; Policy And Static Routes Overview; What You Can Do In This Chapter; Chapter 9 Routing - ZyXEL Communications USG40 User Manual

9.1 Policy and Static Routes Overview

Use policy routes and static routes to override the ZyWALL/USG's default routing behavior in order
to send packets through the appropriate interface or VPN tunnel.
For example, the next figure shows a computer (A) connected to the ZyWALL/USG's LAN interface.
The ZyWALL/USG routes most traffic from A to the Internet through the ZyWALL/USG's default
gateway (R1). You create one policy route to connect to services offered by your ISP behind router
R2. You create another policy route to communicate with a separate network behind another router
(R3) connected to the LAN.
Figure 158 Example of Policy Routing Topology
A
R3
Note: You can generally just use policy routes. You only need to use static routes if you
have a large network with multiple routers where you use RIP or OSPF to
propagate routing information to other routers.

9.1.1 What You Can Do in this Chapter

• Use the Policy Route screens (see
• Use the Static Route screens (see
C
LAN
WAN
Section 9.2 on page
Section 9.3 on page
ZyWALL/USG Series User's Guide
234
H A PT ER

Routing

R1
R2
236) to list and configure policy routes.
243) to list and configure static routes.
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