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EtherFast Cable/DSL VPN Router with 4-Port 10/100 Switch
Subnet Mask. The Subnet Mask (also known as the Network Mask) determines which portion of an IP
address is the network portion, and which portion is the host portion. Take, for example, a network in which
the Subnet Mask is 255.255.255.0. This determines (by using the values 255) that the first three numbers of a
network IP address identify this particular network, while the last digit (from 1 to 254) identifies the specific
host.
Gateway. This IP address should be the IP address of the gateway device that allows for contact between the
Router and the remote network or host.
Hop Count. This determines the maximum number of steps between network nodes that data packets will
travel. A node is any device on the network, such as PCs, print servers, routers, etc.
Interface. Select LAN or Internet, depending on the location of the static route's final destination.
Show Routing Table. Click the Show Routing Table button to open a screen displaying how data is routed
through your network. For each route, the Destination LAN IP address, Subnet Mask, Default Gateway, Hop
Count, and Interface are displayed. Click the Refresh button to update the information.
When finished making your changes on this screen, click the Save Settings button to save these changes, or
click the Cancel Changes button to undo your changes.
Chapter 6: Using The Router's Web-based Utility
The Setup tab
Figure 6-14: The Routing Table
gateway: a device that interconnects networks with
different, incompatible communications protocols
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