ZyXEL Communications USG-300 - V2.20 ED 2, Manual

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ZyWALL USG 300 User’s Guide
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Policy and Static Routes
15.1 Policy and Static Routes Overview
Use policy routes and static routes to override the ZyWALL’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’s
LAN interface. The ZyWALL routes most traffic from A to the Internet through the
ZyWALL’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 298 Example of Policy Routing Topology
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.
15.1.1 What You Can Do in this Chapter
• Use the Policy Route screens (see Section 15.2 on page 382 ) to list and
configure policy routes.
WAN
R1
R2
A
R3
LAN