ZyXEL Communications Prestige 645R - Manual (Page 78)

Prestige P645 ADSL Internet Access Router
5-8 Remote Node TCP/IP Configuration
5.1.2 Static Route Setup
Static routes tell the Prestige routing information that it cannot learn automatically through other means.
This can arise in cases where RIP is disabled on the LAN or a remote network is beyond the one that is
directly connected to a remote node. Each remote node specifies only the network to which the gateway is
directly connected, and the Prestige has no knowledge of the networks beyond.
For instance, the Prestige knows about network N2 in the following diagram through remote node Router 1.
However, the Prestige is unable to route a packet to network N3 because it doesn’t know that there is a
route through remote node Router 1 (via Router 2). The static routes are for you to tell the Prestige about
the networks beyond the remote nodes.
Figure 5-7 Example of Static Routing Topology