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Software Configuration Guide for Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series Routers
OL-1957-03
Chapter 3
Configuring with the Command-Line Interface
Configuring the Digital Modem Network Module for the Cisco 3640 Router
For more information about configuring ISDN dialer interfaces, refer to the Cisco IOS Release 11.3 Dial
Solutions Configuration Guide.
Configure the Default IP Pool Information
You need to set a range of IP addresses in the default IP pool. These IP addresses are used for dial-in
users. To set the range of addresses, perform the following task in global configuration mode:
For more information about defining IP pool information, refer to the Cisco IOS Release 11.3 Network
Protocols Configuration Guide, Part 1.
Configure Modem Lines for Dial-In and Dial-Out
The final task in configuring the MICA digital modem network modules is to configure the modem lines
for dial-in and dial-out.
Step 6
dialer in-band
Specify that dial-on-demand routing (DDR) be
supported.
Step 7
dialer-group
number
Assign this interface to the rotary dialer group.
Step 8
no fair-queue
Disable fair weighted queuing for this interface.
Step 9
no cdp enable
Disable CDP on this interface.
Step 10
ppp multilink
Enable Multilink PPP on this interface.
Step 11
router eigrp
autonomous-system-number
Configure the enhanced IGRP routing process.
Step 12
network
network-number
Enable Enhanced IGRP.
Step 13
passive-interface Dialer
number
Disable sending routing updates on this
interface.
Step 14
no auto-summary
Transmit subprefix routing information across
classful network boundaries.
Command
Description
Step 1
ip pool local default
low-ip-address
[high-ip-address]
Set the range of addresses in the default IP pool to
be assigned to inbound callers.
Step 2
ip default gateway
number
Define a default gateway (router) when IP routing
is disabled.
Step 3
ip classless
Forward packets destined for a subnet of a
network that has no network default route.