ZyXEL ADSL Prestige 2602R-61 VoIP 91-006-024004B Manual Do Utilizador

Prestige 2602R Series User’s Guide

Chapter 24 Internet Access

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This chapter shows you how to configure the LAN and WAN of your Prestige for Internet 
access

.

Refer to the chapters on the web configurator’s wizard, LAN and WAN screens for more 
background information on fields in the SMT screens covered in this chapter.

Traditionally, routing is based on the destination address only and the router takes the shortest 
path to forward a packet.  IP Policy Routing (IPPR) provides a mechanism to override the 
default routing behavior and alter the packet forwarding based on the policy defined by the 
network administrator.  Policy-based routing is applied to incoming packets on a per interface 
basis, prior to the normal routing. Create policies using SMT menu 25 (see 

) and apply them on the Prestige LAN and/or WAN interfaces using menus 3.2 (LAN) and 

11.3 (WAN).

IP alias allows you to partition a physical network into different logical networks over the 
same Ethernet interface. The Prestige supports three logical LAN interfaces via its single 
physical Ethernet interface with the Prestige itself as the gateway for each LAN network.

When you use IP alias, you can also configure firewall rules to control access between the 
LAN's logical networks (subnets).

Note: Make sure that the subnets of the logical networks do not overlap.

The following figure shows a LAN divided into subnets A, B, and C.