Chapter 9 Configuring X.25
X.25 over ISDN B Channel
9-10
Cisco 1700 Series Router Software Configuration Guide
78-5407-03
X.25 over ISDN B Channel
This section describes how to configure the router to encapsulate IP and IPX
packets as X.25 and how to route them over an ISDN B-channel connection.
In addition to the assumptions described in the “Before You Begin” section in this
chapter, this configuration is based on the assumption that you can only use one
of the two ISDN B channels for this type of configuration.
These are the major tasks in configuring your router:
• Configuring Global Parameters
• Configuring Security
• Configuring the Fast Ethernet Interface
• Configuring the ISDN Interface for X.25
• Configuring Command-Line Access to the Router
Figure 9-2 shows the configuration used in this example.
Figure 9-2 Configuration Example—X.25 over ISDN B Channel
Configuring Global Parameters
Follow these steps to configure the router for global parameters.
14322
Remote site Central site
ISDN interface addresses:
IPX network: 9876
X.25: 5432
IP: 192.168.41.41
IPX: 9876
X.25: 2345
IP: 192.168.41.40
IPX: 9876
Network IP address:
192.168.38.0
Phone # 5558461
1700
Router
ISDN
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