ZyXEL Communications NBG-417N, Руководство пользователя, Страница: 103 / 279

Chapter 8 WAN
User
’
s Guide
104
up services such as PPPoE or PPTP, NetBIOS packets cause unwanted calls.
However it may sometimes be necessary to allow NetBIOS packets to pass
through to the WAN in order to find a computer on the WAN.
Auto-Bridge
In the rear panel of your NBG4115, you can see four LAN ports (1 to 2) and one
WAN port. The WAN port is for your Internet access connection, and the LAN ports
are for your network devices. The WAN port has a different IP address from the
LAN ports.
When you enable auto-bridging in your NBG4115, all three ports (2 LAN ports and
the WAN port) share the same IP address. This might happen if you put the
NBG4115 behind a NAT router that assigns it this IP address. When the NBG4115
is in auto-bridge mode, the NBG4115 acts as an AP and all the interfaces (LAN,
WAN and WLAN) are bridged. In this mode, your NAT, DHCP server and firewall on
the NBG4115 are not available. You do not have to reconfigure them if you return
to router mode.
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
available).
• The device must be in Router Mode (see Chapter 22 on page 195 for more
information) for auto-bridging to become active.
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