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