Specifications

Chapter 5 Configuring ISDN
Dial-Up ISDN Connection to a Central-Site Router
5-6
Cisco 1700 Series Router Software Configuration Guide
78-5407-03
Verifying Your Configuration
You can verify your configuration by checking that the Fast Ethernet interface has
the correct IP address:
Step 1 From the privileged EXEC command mode, enter the show arp command:
Router# show arp
Step 2 You should see command output similar to the following:
Protocol Address Age (min) Hardware
Addr Type Interface
Internet 171.16.25.42 - 0060.834f.66dd ARPA Fast
Ethernet0
Router#
Step 3 The IP address, as shown in the command output example, should be your router
Fast Ethernet IP address. If it is not, then reenter the IP address with ip address
interface command.
Step 4 To continue configuration, reenter global configuration mode.
Configuring the ISDN Interface
Follow these steps to configure the ISDN interface, which connects the router to
the central-site router over the wide-area network.
Step4
no shutdown Enable the interface and the configuration
changes you have just made on the interface.
Step5
exit Exit configuration mode for this interface.
Command Task