User Manual

20
WAN Port Mode
This option controls how the device reacts to traffic on the WAN connector. In this case the term "port"
refers to the Ethernet connectors on the device.
Router Mode
Select this option if the WAN port is connected to the Internet. The device functions as a NAT router.
Bridge Mode
Select this option if the device is connected to a local network downstream from another router. In this mode,
the device functions as a bridge between the network on its WAN port and the devices on its LAN port and
those connected to it wirelessly. The Router IP Address field below must be set to the IP address of this
device. The Gateway must be set to the IP address of the upstream router. Both addresses must be within
the LAN subnet as specified by Subnet Mask.
In bridge mode, the device still supports several features not available in ordinary bridges -- features that
involve the WAN side of the upstream router.
Firmware update checks
The bridge checks the support site for updates by way of the upstream router.
Log emails
When the log email option is set, log emails are sent to the Internet by way of the upstream router.
Internet rate estimation
The bridge still has the ability to analyze traffic on the WAN side of the upstream router so as to determine the
speed of its WAN connection.
StreamEngine
StreamEngine™ technology is applied to media streams that are passed between the WAN side of the
upstream router and clients of the bridge.
Router Settings
These are the settings of the LAN (Local Area Network) interface for the router. The router's local
network (LAN) settings are configured based on the IP Address and Subnet Mask assigned in this
section. The IP address is also used to access this Web-based management interface. It is
recommended that you use the default settings if you do not have an existing network.
IP Address
The IP address of your router on the local area network. Your local area network settings are based on the
address assigned here. For example, 192.168.0.1.
Subnet Mask
The subnet mask of your router on the local area network.
Local Domain Name
This entry is optional. Enter a domain name for the local network. LAN computers will assume this domain
name when they get an address from the router's built in DHCP server. So, for example, if you enter
mynetwork.net here, and you have a LAN side laptop with a name of chris , that laptop will be known
as chris.mynetwork.net . Note, however, the entered domain name can be overridden by the one
obtained from the router's upstream DHCP server.
DNS Relay
When DNS Relay is enabled, the router plays the role of a DNS server. DNS requests sent to the router are
forwarded to the ISP's DNS server. This provides a constant DNS address that LAN computers can use, even
when the router obtains a different DNS server address from the ISP upon re-establishing the WAN
connection. You should disable DNS relay if you implement a LAN-side DNS server as a virtual server.