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
3-50
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 compression over PPP, perform the following tasks in interface configuration mode:
Configuration Example
The following example enables hardware compression and PPP encapsulation on serial interface 3/1.
Although the Serial interface in slot 3/1 is configured with the compress stac command, the actual data
compression takes place in the hardware compression card inserted in a different slot.
Router(config)# interface serial 3/1
Router(config-if)# encapsulate ppp
Router(config-if)# compress stac
Router(config-if)# exit
Router(config)#
Configuring the Digital Modem Network Module for the
Cisco 3640 Router
The Digital Modem Network Module for the Cisco 3640 is a high-density digital network module
containing 6, 12, 18, 24, or 30 digital (MICA) modems. These modems provide a direct digital
connection to an Integrated Services Digital Network (ISDN) Primary Rate Interface (PRI) channel. This
digital modem network module allows the access server to support a mix of both digital data calls
(ISDN) and analog modem calls over a single digital network interface.
Depending on the modem license you purchase with your Cisco 3640, the modems on the Digital Modem
Network Module are either manageable or not manageable by Cisco IOS software commands. If the
license you purchase includes this modem management capability, you can use the modem management
commands to gather call and performance statistics at any time, even if there is an active call on the
modem.
The Digital Modem Network Module for the Cisco 3640 provides the following benefits:
• Enables you, as the Enterprise customer, to support a mix of digital (ISDN) and POTS analog
modem calls over a single digital network interface.
• Modem management commands enable you to gather call and performance statistics.
• Supports 56 kbps modem connections via the K56 Flex and V.90 standards when the portware for
these standards becomes available.
Command Task
Step 1
interface serial number
Specify a serial interface.
Step 2
encapsulation ppp
Enable encapsulation of a single protocol
on the serial line.
Step 3
compress stac
Enable compression on a specified WAN
interface.