Specifications
Table Of Contents
- Software Configuration Guide
- Contents
- Preface
- Understanding Interface Numbering and Cisco IOS Software Basics
- Understanding Interface Numbering
- Understanding Cisco IOS Software Basics
- Upgrading to a New Cisco IOS Release
- Where to Go Next
- Using the Setup Command Facility
- Before Starting Your Router
- Using the setup Command Facility
- Configuring Global Parameters
- Configuring Interface Parameters
- Completing the Configuration
- Where to Go Next
- Configuring with the Command-Line Interface
- Configuring the Host Name and Password
- Configuring 1-Port and 2-Port Ethernet Interfaces
- Configuring Fast Ethernet Interfaces
- Configuring Asynchronous/Synchronous Serial Network Modules or WAN Interface Cards
- Configuring 16-Port and 32-Port Asynchronous Network Modules
- Configuring ISDN BRI WAN Interface Cards
- Configuring T1 and E1 Interfaces
- Configuring T1 (FT1) WAN Interface Cards
- Configuring ATM Interfaces
- Configuring Inverse Multiplexing for ATM Interfaces
- Configuring Analog Modem Interfaces
- Configuring Wireless Multipoint Interfaces
- Checking the Interface Configuration
- Configuring 1-Port ADSL WAN Interface Card
- Configuring the NM-AIC-64, Contact Closure Network Module
- Configuring the 1-Port HSSI Network Module
- Configuring the Compression Network Module for the Cisco 3600 Series Routers
- Configuring the Digital Modem Network Module for the Cisco 3640 Router
- Prerequisites
- Configuration Tasks
- Configure the E1/T1 Network Module for ISDN PRI
- Configure the ISDN D-Channel Serial Interfaces
- Configure the Loopback Interface
- Configure the LAN Interface
- Create the Group Asynchronous Interface
- Configure the ISDN Dialer Interface
- Configure the Default IP Pool Information
- Configure Modem Lines for Dial-In and Dial-Out
- Configuration Example
- Configuring 1-Port G.SHDSL WAN Interface Card
- Saving Configuration Changes
- Where to Go Next
- Configuring Voice-over-IP
- Voice-over-IP Prerequisites
- Configuring the Voice Interface
- Voice-over-IP Configuration Examples
- Where to Go Next
- Configuration Examples
- Cisco 2600 Series Router Configuration Example
- Cisco 3631 Router Configuration Example
- Cisco 3725 Router Configuration Example
- 1-Port ADSL WAN Interface Card Configuration Examples
- NM-AIC-64, Contact Closure NetworkConfiguration Examples
- Cisco 3640 Central Site Configuration to Support ISDN and Modem Calls
- Formatting the Compact Flash Memory Cards
- Using the ROM Monitor
- Index
3-56
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
To configure a group asynchronous interface, perform the following tasks, beginning in global
configuration mode:
For more information about group asynchronous interfaces, refer to the “Asynchronous Configuration
Task List” section of the Cisco IOS Release 11.3 Dial Solutions Configuration Guide.
Configure the ISDN Dialer Interface
The ISDN dialer interface is the parent interface that holds the central protocol characteristics for the
ISDN D channels that are part of the dialer-rotary group. To configure the ISDN dialer interface, perform
the following tasks, beginning in global configuration mode:
Command Description
Step 1
interface group-async number
Create a group asynchronous interface.
Step 2
ip unnumbered Loopback number
Enable IP processing on the loopback
interface without assigning an explicit IP
address to the interface.
Step 3
encapsulation ppp
Set the Point-to-Point Protocol (PPP) as the
encapsulation method used by this
interface.
Step 4
async mode interactive
Enable SLIP and PPP EXEC commands on
this interface.
Step 5
peer default ip address pool
name
Specify an IP address from the defined IP
address pool to be returned to a remote peer
connecting to this interface.
Step 6
no cdp enable
Disable CDP on this interface.
Step 7
group-range start-range
end-range
Associate one or more interfaces to the
group interface so that all associated
interfaces can be configured through the
group interface.
Command Description
Step 1
interface Dialer number
Define a dialer rotary group leader.
Step 2
ip unnumbered Loopback
number
Enable IP processing on the loopback interface
without assigning an explicit IP address to the
interface.
Step 3
no ip mroute-cache
Disable IP multicast fast switching.
Step 4
encapsulation ppp
Set the PPP as the encapsulation method used
by this interface.
Step 5
peer default ip address pool
name
Specify an IP address from the defined IP
address pool to be returned to a remote peer
connecting to this interface.