ZyXEL Communications P-870HW-I User Manual

P-870HW-I1 User’s Guide

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Chapter 7 WAN

Use this screen to specify a backup gateway in case the default gateway (your ISP) is not 
available. (If you do not have a backup gateway, do not use this screen.) To access this screen, 
click Network > WAN > Traffic Redirect.

RIP Direction

Use this field to control how much routing information the ZyXEL Device sends 

and receives on the subnet.
None - The ZyXEL Device does not send or receive routing information on the 

subnet.
Both - The ZyXEL Device sends and receives routing information on the subnet.
In Only - The ZyXEL Device only receives routing information on the subnet.
Out Only - The ZyXEL Device only sends routing information on the subnet.

RIP Version

Select which version of RIP the ZyXEL Device uses when it sends or receives 

information on the subnet.
RIP-1 - The ZyXEL Device uses RIPv1 to exchange routing information.
RIP-2B - The ZyXEL Device broadcasts RIPv2 to exchange routing information.
RIP-2M - The ZyXEL Device multicasts RIPv2 to exchange routing information.

Multicast

Select which version of IGMP the ZyXEL Device uses to support multicasting on 

the WAN. Multicasting sends packets to some computers on the WAN and is an 

alternative to unicasting (sending packets to one computer) and broadcasting 

(sending packets to every computer).
None - The ZyXEL Device does not support multicasting.
IGMP-v1 - The ZyXEL Device supports IGMP version 1.
IGMP-v2 - The ZyXEL Device supports IGMP version 2.
Multicasting can improve overall network performance. However, it requires 

extra processing and generates more network traffic. In addition, other 

computers on the WAN have to support the same version of IGMP.

Windows 

Networking

Allow between LAN 

and WAN

Select this check box if you want the ZyXEL Device to send NetBIOS (Network 

Basic Input/Output System) packets between the LAN and WAN. You should 

also make sure that NetBIOS packets are not blocked in Security > Firewall > 

Rules.
NetBIOS packets are TCP or UDP packets that enable a computer to connect to 

and communicate with computers on other networks. It may sometimes be 

necessary to allow NetBIOS packets to pass through the ZyXEL Device in order 

to allow computers on the LAN to find computers on the WAN and vice versa.
This is the same setting you can set in Network > LAN > Advanced.

Allow Trigger Dial

Select this if you want to allow NetBIOS packets to initiate calls.

Apply

Click this to save your changes back to the ZyXEL Device.

Reset

Click this to reload the previous configuration for this screen.

Table 49   Network > WAN > Advanced (continued)