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ZyXEL Communications NBG420N User Manual

Page 126

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Chapter 8 WAN

NBG420N User’s Guide

126

Enable Auto-bridge

mode

Select this option to have the NBG420N switch to bridge mode automatically

when the NBG420N gets a WAN IP address in the range of 192.168.x.y

(where x and y are from zero to nine) no matter what the LAN IP address is.

This might happen if you put the NBG420N behind a NAT router that assigns

it this IP address. When the NBG420N is in bridge mode, the NBG420N acts

as an AP and all the interfaces (LAN, WAN and WLAN) are bridged. In this

mode, your NAT, DHCP server, firewall and bandwidth management (rules)

on the NBG420N are not available. You do not have to reconfigure them if

you return to router mode.

Note: The NBG420N automatically turns back to Router Mode

when the NBG420N gets a WAN IP address that is not in
the 192.168.x.y range.

Auto-bridging only works under the following conditions:

The WAN IP must be 192.168.x.y (where x and y must be from zero to

nine). If the LAN IP address and the WAN IP address are in the same

subnet but x or y is greater than nine, the device operates in router mode

(with firewall and bandwidth management available).

The device must be in Router Mode (see

Chapter 24 on page 259

for

more information) for auto-bridging to become active.

Apply

Click Apply to save your changes back to the NBG420N.

Reset

Click Reset to begin configuring this screen afresh.

Table 46 WAN > Advanced

LABEL

DESCRIPTION