ZyXEL Communications Prestige 128IMH, User Manual, Page: 83 / 142

Prestige 128IMH User’s Guide ZyXEL
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Page 10-1
10. Bridging Configuration
This chapter shows you how to configure the Bridging choices for the Prestige. Depending
on your particular applications, you will need to configure different menus. We will
illustrate the configuration for some applications in the following sections.
10.1. IPX Spoofing
The Prestige comes with several pre-defined call filters designed to prevent certain IPX
packets from triggering a call to a remote node. These filters should inform your Prestige
which packets should be ignored as traffic.
When you are bridging IPX packets, the default call filters are defined as follows:
•
Block periodical SAP and RIP response messages.
•
Block SAP and RIP inquiry packets if set to Handle IPX as Server.
•
Allow SAP and RIP inquiry packets if set to Handle IPX as Client or None.
These call filters prevent the Prestige from making a call to the remote node, thus
preventing the expense of an unnecessary telephone call.
10.2. Bridge Ethernet Setup
Bridging is used to forward packets of unsupported protocols, whose destination is not on
the local Ethernet, to the WAN.
All non-local packets are bridged to the WAN, however, the Prestige applies a special
handling for certain IPX packets to reduce the number of calls, depending on the setting of
the Handle IPX’ field’.
•
If it is set to
None
, nothing is done to IPX traffic.
•
If it is set to
Client
, all RIP and SAP (Service Advertising Protocol) periodical
response packets will not trigger the call.
•
If it is set to
Server
, no RIP or SAP packets will trigger the call. In addition, during
the time when the connection is down, the Prestige will reply to the servers watchdog
messages on behalf of remote clients. The period that the Prestige will do this is linked