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Chapter 2 33
Networking Concepts
Internetworks
• Example 4: One of the gateways on your internetwork may be
designated as a default gateway, such as node C in Figure 2-3. A
default gateway is a gateway that is designated to receive any traffic
for which the network is unable to identify a destination. You must
identify the node as a default gateway in the configuration file of
each node that will access it as the default gateway. If you were
configuring node D, you would identify node C as a default gateway
by entering an at sign (@) in one of the IP address fields of the
Neighbor Gateway Reachable Networks screen. Only one gateway
may be designated as a default gateway for each node. The default
gateway must be on a LAN or Token Ring network.
Configuring a Gateway Half Pair
If you are configuring a gateway half pair, you will need to configure a
gateway half NI for each half of the gateway pair. You will find
step-by-step instructions for configuring a gateway half NI in this
manual.
In Figure 2-3, nodes E and F form a gateway half pair. When you
configure a node as a gateway half, you enter its partner’s IP address
into this gateway half’s configuration in the Gatehalf Configuration
screen. If you were to configure node E in the figure, you would enter
the IP address of node F.
Figure 2-3 Gateway Configuration Scenarios