Zyxel-communications 200 Series Bedienungsanleitung Seite 277

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ZyWALL USG 100/200 Series User’s Guide
277
CHAPTER 12
Policy and Static Routes
12.1 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 the 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 193 Example of Policy Routing Topology
You also use policy routes to send traffic through VPN tunnels. Using the VPN wizard
automatically configures a corresponding policy route, but you must manually configure a
policy route if you use the main VPN screens to configure a VPN connection.
" 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.
WAN
R1
R2
A
R3
LAN
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