HP e3000/iX Network Planning and Configuration Guide (36922-90037)

Chapter 8 147

Conﬁguring an X.25 Node

To Conﬁgure Neighbor Gateways

You need to visit the next two screens only if you are conﬁguring a

non-gateway node that is on the same network as a gateway. In this

case, the non-gateway node needs to know the identity of any neighbor

gateway. Neighbor gateways can be either full or half gateways.

Gateways that are on the same network are called neighbor

gateways. A non-gateway node on an X.25 network may need to go

through a neighbor gateway in order to send messages to an entirely

different network. (Two nodes are on the same network if the network

portion of their IP addresses are the same.) All X.25 nodes that are on

the same network as a neighbor gateway need to know the identity of

any neighbor gateways. When you conﬁgure an X.25 node, you enter

into its conﬁguration the identity of any accessible neighbor gateways

that share the same network. The identiﬁed gateways may be either

full or half gateways.

You may designate gateways as default gateways. Messages for a

network will be routed to a default gateway if there is no gateway

conﬁgured for the destination network. The default gateway will then

attempt to locate the destination of the message.

To Identify Neighbor Gateways (If Any Are

Present)

The Neighbor Gateways screen (#152) in Figure 8-4is displayed when

you press the

[Neighbor Gateways] key at the X.25 Conﬁguration screen

(#48) in Figure 8-2.