3-11
Software Configuration Guide for Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series Routers
OL-1957-04
Chapter3 Configuring with the Command-Line Interface
Configuring ISDN BRI WAN Interface Cards
Command Purpose
Step1
Router> enable
Password: password
Router#
Enter enable mode. Enter the password.
You have entered enable mode when the prompt
changes to Router#.
Step2
Router# configure terminal
Enter configuration commands, one per line.
End with CNTL/Z.
Router(config)#
Enter global configuration mode. You have
entered global configuration mode when the
prompt changes to Router(config)#.
Step3
Router(config)# isdn switch-type
basic-5ess
Enter an ISDN switch type. See Table3-5 for a list
of ISDN switch types.
Note Switch types configured in interface
configuration mode override this setting
for the configured interface.
Step4
Router(config)# ip routing
Router(config)# appletalk routing
Router(config)# ipx routing
Enable routing protocols as required for your
global configuration. This example uses IP
routing, AppleTalk routing, and Internetwork
Packet Exchange (IPX) routing.
Step5
Router(config)# interface bri 0/0
Router(config-if)#
Enter the interface configuration mode. You have
entered interface configuration mode when the
prompt changes to Router(config-if)#.
Step6
Router(config-if)# ip address 172.16.74.2
255.255.255.0
Router(config-if)# isdn switch-type
basic-5ess
Assign the IP address and subnet mask to the
interface.
If you are configuring this interface for voice,
enter the switch type instead of an IP address.
Step7
Router(config-if)# appletalk static
cable-range 5-5
Router(config-if)# appletalk zone ZZBRI
Router(config-if)# ipx network B004
Router(config-if)# isdn incoming-voice
modem
Configure routing protocols on the interface. You
must have previously enabled these protocols as
part of global configuration. In this example,
AppleTalk and IPX are being configured on the
interface.
If you are configuring this router for voice, use the
isdn incoming-voice modem command.
Step8
Router(config-if)# exit
Exit back to global configuration mode.
Repeat Step 5 through Step 7 if your router has
more than one BRI interface that you need to
configure.
Step9
Router(config-if)# memory-size iomem 40
By default, the router allocates 25percent of
DRAM to shared memory (used for data
transmitted or received by network modules and
WAN interface cards). If your router includes 16
or more ISDN BRI interfaces, you must increase
the amount of shared memory by entering the
memory-size iomem command. This example
increases shared memory from 25percent to
40percent.
Step10
Router(config)# Ctrl-z
When you finish configuring interfaces, return to
enable mode.
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