Table Of Contents
Configuring the 3G Wireless High-Speed WAN Interface Card for Cisco 1841, and 2800 and 3800 Series Routers (HWIC-3G-GSM)
Contents
Prerequisites for Configuring the 3G Wireless HWIC
Restrictions for Configuring the 3G Wireless HWIC
Overview of GSM/UMTS Data Network
Supported Cisco Antennas and Cables
How to Configure the 3G Wireless HWIC (HWIC-3G-GSM)
Data Account Provisioning
Verifying Signal Strength and Service Availability
Configuring a Modem Data Profile
Data Call Setup
Configuring the Cellular Interface
Configuring DDR
Configuring DDR Backup
Configuration Examples for the Wireless HWIC
Basic Cellular Interface Configuration
Tunnel over Cellular Interface Configuration
3G Wireless Modem as Backup with NAT and IPSec
Modem Firmware Upgrade
Additional References
Related Documents
Technical Assistance
Command Reference
cellular gsm plmn search
cellular gsm plmn select
cellular gsm profile create
cellular gsm profile delete
debug cellular driver
debug cellular firmware
debug cellular messages all
debug cellular messages async
debug cellular messages data
debug cellular messages dm
debug cellular messages management
debug cellular messages virt-con
show cellular all
show cellular connection
show cellular hardware
show cellular network
show cellular profile
show cellular radio
show cellular security
show controllers cellular
show interfaces cellular
show run interface cellular
Troubleshooting
Verifying Data Call Setup
Checking Signal Strength
Verifying Service Availability
Successful Call Setup
Modem Troubleshooting Using the Diagnostic Port
Modem Settings for North America and Carriers Operating on 850 MHz and 1900 MHz Bands
Configuring the 3G Wireless High-Speed WAN Interface Card for Cisco 1841, and 2800 and 3800 Series Routers (HWIC-3G-GSM)
First Published: March 14, 2007
Revised: July 3, 2008
The Third Generation (3G) Wireless High-Speed WAN Interface Card (HWIC) is a multiband, multiservice WAN card for use over Global System for Mobile Communications/Universal Mobile Telecommunication System (GSM/UMTS) networks. Its primary application is WAN connectivity as a backup data link for critical data applications. However, the 3G wireless HWIC can also function as the primary WAN connection. It is supported on the following Cisco integrated services routers (Cisco ISRs):
•
Cisco 1841
•Cisco 2800 series
•Cisco 3800 series
The 3G wireless HWIC provides the following functionality:
•Broadband WAN connectivity using high-speed cellular data technology
•Support for the following technologies:
–High-speed Downlink Packet Access (HSDPA)
–Universal Mobile Telecommunication System (UMTS)
–Enhanced Data-Rates for GSM Evolution (EDGE)
–General Packet Radio Service (GPRS)
•Automatic best-network selection
•Multiple external antenna options
•Static and dynamic IP addressing
•Modem-based support for mobile IP
•Cellular interface based on the asynchronous interface in Cisco IOS software
•Network Address Translation (NAT) support
•Security features such as firewall, intrusion-detection systems (IDS), intrusion-prevention systems (IPS), and IPSec VPN on the router
•WAN switchover using Cisco IOS software backup interface feature
Table 1 shows the SKU and the frequencies supported by the 3G wireless HWICs.
Table 1 SKU Description and Supported Frequencies
SKU Number
|
Description
|
Region
|
Frequency Bands
|
HWIC-3G-GSM
|
HSDPA/UMTS/EDGE/GPRS
|
Worldwide
|
850/900/1800/1900/2100 MHz
|
Figure 1 shows the GSM (UMTS/HSDPA) HWIC.
Figure 1 Front Panel of HWIC-3G-GSM
1
|
Mounting Screws
|
3
|
Antenna Connector
|
2
|
Diagnostic Port
|
4
|
LEDs
|
Note The diagnostic port is not required for normal activation or operation. Please see the "Modem Troubleshooting Using the Diagnostic Port" section for details.
Table 2 lists the LEDs and describes their functionality and different states. The LEDs provide a visual indication of your available services. Please see Chapter 13 in the Cisco Interface Cards Hardware Installation Guide for details on hardware installation.
Table 2 3G Wireless HWIC (GSM) LED Descriptions
LED
|
Description
|
RSSI
|
Off: Low RSSI (under -100 dBm).
|
Slow Green Blink: Low or medium RSSI (-99 to -90 dBm).
|
Fast Green Blink: Medium RSSI (-89 to -70 dBm).
|
Solid Green: High RSSI (-69 dBm or higher).
|
Solid Yellow: No service or no RSSI detected.
|
WWAN
|
Off: HWIC in reset mode or not powered.
|
Slow blink: Searching for service.
|
Solid Green: Active service; no traffic detected.
|
Fast Blink: Active service, and traffic detected proportional to blink rate.
|
UMTS
|
UMTS is the active service.
|
HSDPA
|
HSDPA is the active service.
|
Note Both UMTS and HSDPA Off: Fallback (EGDE or GPRS) service is active.
If the RSSI LED is solid yellow, it means that no service and no RSSI are detected.
Note Active service means the currently available service. Your 3G wireless HWIC automatically selects the best available connection.
|
The 3G wireless HWIC provides the following software functionality:
•Modem activation—You can activate the modem by using Cisco IOS commands.
•Modem management—You can access modem software and hardware information, radio and network status, and data profile information by using Cisco IOS commands.
•Dial on Demand Routing (DDR)—This allows you to set up a data call when there is data traffic to be sent over the wireless network.
•Fallback connection (DDR backup)—The 3G wireless WAN HWIC allows you to configure the cellular modem to initiate a dialup connection when connection to a primary service is lost.
•Teardown after fallback (part of fallback DDR)—After a primary connection has failed and the cellular connection is in fallback mode, the 3G wireless HWIC tears down the fallback-mode connection when the primary connection is available.
•Automatic teardown—After a configurable timeout, the 3G wireless HWIC automatically tears down a connection if there has been no activity.
•Portable application—You can move the router into different coverage areas (different base stations within the same service provider) and the router establishes a connection with the nearest cell infrastructure automatically. This is different from the mobile capability that cell phones offer.
•Autodetect—The 3G wireless HWIC automatically detects and uses the best available service.
•Firmware upgrade—You can upgrade the firmware on the modem by using Cisco IOS commands.
Feature History
Release
|
Modification
|
12.4(11)XV
|
This feature was introduced.
|
Finding Support Information for Platforms and Cisco IOS Software Images
Use Cisco Feature Navigator to find information about platform support and Cisco IOS software image support. Access Cisco Feature Navigator at http://www.cisco.com/go/fn. You must have an account on Cisco.com. If you do not have an account or have forgotten your username or password, click Cancel at the login dialog box and follow the instructions that appear.
Contents
•Prerequisites for Configuring the 3G Wireless HWIC
•Restrictions for Configuring the 3G Wireless HWIC
•Overview of GSM/UMTS Data Network
•How to Configure the 3G Wireless HWIC (HWIC-3G-GSM)
•Configuration Examples for the Wireless HWIC
•Modem Firmware Upgrade
•Additional References
•Command Reference
•Troubleshooting
Prerequisites for Configuring the 3G Wireless HWIC
The following are prerequisites to configuring the wireless HWICs:
•You must have service availability on the HWIC from a carrier, and you must have network coverage where your router will be physically placed. For a complete list of supported carriers, see the data sheet at the following URL: http://www.cisco.com/go/3g
•You must subscribe to a service plan with a wireless service provider and obtain a SIM card from the service provider.
•You must install the SIM card before configuring the 3G Wireless HWIC. For instructions on how to install the SIM card, see Chapter 13 in the Cisco Interface Cards Hardware Installation Guide at the following URL: http://cisco.com/en/US/products/hw/modules/ps2641/products_module_installation_guide_book09186a0080692b21.html
•You must install the required antennas before you configure the 3G HWIC. See the following URLs for instructions on how to install the antennas:
–3G-ANTM1919D—See the Cisco Multiband Swivel Mount Dipole Antenna (3G-ANTM1919D)
–3G-ANTM1916-CM—See the Cisco Multiband Omnidirectional Ceiling Mount Antenna (3G-ANTM1916-CM)
–3G-AE015-R (Antenna Extension)—See the Cisco Single-Port Antenna Stand for Multiband TNC Male-Terminated Portable Antenna (3G-AE015-R)
•You must check your LEDs for signal reception as described in Table 2.
•You should be familiar with the Cisco IOS software , beginning with Release 12.4(11)XV or later for Cisco HWIC support. (See the Cisco IOS documentation.)
•To configure your GSM data profile, you will need the following information from your service provider:
–Username
–Password
–Access Point Name (APN)
Restrictions for Configuring the 3G Wireless HWIC
The following restrictions apply to configuring the Cisco Wireless HWICs:
•Data connection can be originated only by the 3G wireless HWIC. Remote dial-in is not supported.
•Throughput—due to the shared nature of wireless communications, the experienced throughput varies depending on the number of active users or congestion in a given network.
•Cellular networks have higher latency compared to wired networks. Latency rates depend on the technology and carrier. Latency may be higher because of network congestion.
•VoIP is not currently supported.
•Any restrictions that are a part of the terms of service from your carrier.
Overview of GSM/UMTS Data Network
The Global System for Mobile Communications (GSM) is the most widely deployed cellular network in the world. It is based on the specification from European Telecommunications Standards Institute (ETSI). GSM was primarily designed for voice and was circuit switched but due to the popularity of cellular networks and the great demand for data services, GPRS was introduced as a packet switched data overlay over the GSM radio network. The radio and network resources of GPRS are accessed only when data actually needs to be transmitted between the GPRS mobile user and the GPRS network.
GPRS introduced several new network nodes into the GSM architecture for packet switching, they form the Mobile Packet Core. The Mobile Packet Core includes the Serving GPRS Support Node (SGSN) and the GPRS Gateway Support Node (GGSN). The SGSN is the node which in some ways carries out the same function as the Foreign Agent in Mobile IP. It tunnels IP packets towards the GGSN and detunnels packets back from the GGSN. It also carries out mobility managed and billing. The GGSN is the node which carries out the role in GPRS equivalent to the Home Agent in Mobile IP. The GGSN provides the connectivity to the IP network and the SGSN. It is responsible for IP address assignment and is the default router for the connected User Equipment (UE).
Figure 2 shows a GSM network and the network elements it contains.
Figure 2 GSM Network Overview
The Base Tranceiver Station (BTS) and Base Station Controller (BSC) are located at the Cell site and are the common nodes for both voice and data services. They provide the radio or the physical layer connectivity between the mobile user and the mobile network. As the BSC voice and data traffic get segregated, the voice traffic goes to the Mobile Switching Center (MSC), while the data traffic is sent to the GGSN. From the GGSN, the data packets either go directly to the internet or they can be backhauled to the customer data center for a VPN connection.
UMTS is a 3G wireless system that delivers high-bandwidth data and voice services to mobile users.UMTS evolved from GSM. UMTS has a new air interface based on Wideband Code Division Multiple Access (W-CDMA) and an IP core network based on general-packet radio service (GPRS). The nodes in a UMTS network are almost the same as in a GSM/GPRS network. BTS and BSC have been renamed to Node B and Radio Network Controller (RNC), respectively. UMTS addresses the growing demand of mobile and Internet applications for new capacity in the overcrowded mobile communications sky. The new network increases transmission speed to 2 Mbps per mobile user and establishes a global roaming standard.
Supported Cisco Antennas and Cables
Table 3 lists the Cisco antennas that are supported for use on the 3G wireless HWIC.
.
Table 4 lists insertion loss information for the ultra-low-loss (ULL) LMR 400 extension cables available from Cisco for use with the ceiling-mounted antenna.
Table 4 Cisco Extension Cables for Use with Antennas
Cisco Product Number
|
Cable Length
|
Insertion Loss
|
Frequency (MHz)
|
3G-CAB-ULL-20
|
20 ft (6 m)
|
1.50 dB max.
|
2100
|
3G-CAB-ULL-50
|
50 ft (15 m)
|
3.50 dB max.
|
2100
|
Figure 3 shows the various antenna options for the 3G wireless HWIC.
Figure 3 Antenna Options
How to Configure the 3G Wireless HWIC (HWIC-3G-GSM)
To configure the 3G wireless HWIC, follow these procedures:
•Data Account Provisioning
•Data Call Setup
Data Account Provisioning
Note To provision your modem, you must have an active wireless account with a service provider and a SIM card installed in your 3G wireless HWIC.
To provision your data account, follow these procedures:
•Verifying Signal Strength and Service Availability
•Configuring a Modem Data Profile
Verifying Signal Strength and Service Availability
To verify the signal strength and service availability on your modem, use the following commands in privileged EXEC mode.
SUMMARY STEPS
1. show cellular network
2. show cellular radio
3. show cellular profile
4. show cellular security
5. show cellular all
DETAILED STEPS
| |
Command or Action
|
Purpose
|
Step 1
|
Router# show cellular <slot/wic/port> network
Example:
Router# show cellular 0/0/0 network
|
Displays information about the carrier network, cell site, and available service.
|
Step 2
|
Router# show cellular <slot/wic/port> radio
Example:
Router# show cellular 0/0/0 radio
|
Shows the radio signal strength.
Note The RSSI should be better than -90 dBm for steady and reliable connection.
|
Step 3
|
Router# show cellular <slot/wic/port> profile
Example:
Router# show cellular 0/0/0 profile
|
Shows information about the modem data profiles created.
|
Step 4
|
Router# show cellular <slot/wic/port> security
Example:
Router# show cellular 0/0/0 security
|
Shows the security information for the modem, such as SIM and modem lock status.
|
Step 5
|
Router# show cellular <slot/wic/port> all
Example:
Router# show cellular 0/0/0 all
|
Shows consolidated information about the modem, profiles created, radio signal strength, network security, and so on.
|
Configuring a Modem Data Profile
To configure or create a new modem data profile, enter the following command in privileged EXEC mode.
SUMMARY STEPS
1. cellular gsm profile create <profile number> <apn> <authentication> <username> <password>
DETAILED STEPS
Command or Action
|
Purpose
|
Router# cellular <slot/wic/port> gsm profile create
<profile number> <apn> <authentication> <username>
<password>
Example:
Router# cellular 0/0/0 gsm profile create 3 apn.com
chap GSM GSMPassword
|
Creates a new modem data profile. Refer to Table 5 for details on the command parameters.
|
Table 5 Modem Data Profile Parameters
profile number
|
Number for the profile you are creating. You can create upto 16 profiles.
|
apn
|
Access Point Name. You must get this information from the service provider.
|
authentication
|
The type of authentication. For example, CHAP, PAP.
|
Username
|
The username provided by your service provider.
|
Password
|
The password provided by your service provider.
|
Data Call Setup
To set up a data call, use the following procedures:
•Configuring the Cellular Interface
•Configuring DDR
•Configuring DDR Backup
Figure 4 shows a typical data call setup with the 3G wireless HWIC.
Figure 4
Data Call Setup with HWIC-3G-GSM
Configuring the Cellular Interface
To configure the cellular interface, enter the following commands in the cellular interface mode.
SUMMARY STEPS
1. configure terminal
2. interface cellular <slot/wic/port>
3. encapsulation ppp
4. ppp chap hostname <host>
5. ppp chap password 0 <password>
6. asynchronous mode interactive
7. ip address negotiated
Note The PPP CHAP authentication parameters that you use in this procedure must be the same as the username and password provided by your carrier and configured under the GSM profile.
DETAILED STEPS
| |
Command or Action
|
Purpose
|
Step 1
|
Router# configure terminal
Example:
Router# configure terminal
|
Enters global configuration mode from the terminal.
|
Step 2
|
Router(config)# interface cellular <slot/wic/port>
Example:
Router (config)# interface cellular 0/0/0
|
Specifies the cellular interface.
|
Step 3
|
Router(config-if)# encapsulation ppp
Example:
Router (config-if)# encapsulation ppp
|
Specifies PPP encapsulation for an interface configured for dedicated asynchronous mode or dial-on-demand routing (DDR).
|
Step 4
|
Router(config-if)# ppp chap hostname <hostname>
Example:
Router (config-if)# ppp chap hostname cisco@wwan.ccs
|
Defines an interface-specific CHAP hostname. This must match the username given by the carrier.
|
Step 5
|
Router(config-if)# ppp chap password <password>
Example:
Router (config-if)# ppp chap password 0 cisco
|
Defines an interface-specific CHAP password. This must match the password given by the carrier.
|
Step 6
|
Router(config-if)# async mode interactive
Example:
Router (config-if)# async mode interactive
|
Returns a line that has been placed into dedicated asynchronous network mode to interactive mode, thereby enabling the SLIP and PPP commands in privileged EXEC mode.
|
Step 7
|
Router(config-if)# ip address negotiated
Example:
Router (config-if)# ip address negotiated
|
Specifies that the IP address for a particular interface is obtained via PPP/IPCP address negotiation.
|
Note When a static IP address is required for the cellular interface, the address may be configured as ip address negotiated. During IPCP, the network ensures that the correct static IP address is allocated to the device. If a tunnel interface is configured with ip address unnumbered <cellular interface>, it is necessary to configure the actual static IP address under the cellular interface, in place of ip address negotiated. For a sample cellular interface configuration, see the "Basic Cellular Interface Configuration" section.
Configuring DDR
To configure DDR for the cellular interface, follow these steps.
SUMMARY STEPS
1. configure terminal
2. interface cellular <slot/wic/port>
3. dialer in-band
4. dialer idle-timeout <seconds>
5. dialer string <string>
6. dialer group <number>
7. exit
8. dialer-list <dialer-group> protocol <protocol-name> {permit | deny | list <access-list-number> | access-group}>
9. ip access-list<access list number>permit <ip source address>
10. line <slot/wic/port>
11. script dialer <regexp>
12. exit
13. chat-script <script name> "" "ATDT*99*<profile number>#" TIMEOUT <timeout value> CONNECT
14. interface cellular <slot/wic/port>
15. dialer string <string>
DETAILED STEPS
| |
Command or Action
|
Purpose
|
Step 1
|
Router# configure terminal
Example:
Router# configure terminal
|
Enters global configuration mode from the terminal.
|
Step 2
|
Router(config)# interface cellular <slot/wic/port>
Example:
Router (config)# interface cellular 0/0/0
|
Specifies the cellular interface.
|
Step 3
|
Router(config-if)# dialer in-band
Example:
Router (config-if)# dialer in-band
|
Enables DDR and configures the specified serial interface to use in-band dialing.
|
Step 4
|
Router(config-if)# dialer idle-timeout <seconds>
Example:
Router (config-if)# dialer idle-timeout 30
|
Specifies the duration of idle time, in seconds, after which a line will be disconnected.
|
Step 5
|
Router(config-if)# dialer string <string>
Example:
Router (config-if)# dialer string gsm
|
Specifies the number or string to dial. Use the name of the CHAT script here.
|
Step 6
|
Router(config-if)# dialer-group <number>
Example:
Router (config-if)# dialer-group 1
|
Specifies the number of the dialer access group to which the specific interface belongs.
|
Step 7
|
Router(config-if)# exit
Example:
Router (config-if)# exit
|
Enters the global configuration mode.
|
Step 8
|
Router(config)# dialer-list <dialer-group> protocol
<protocol-name> {permit | deny | list
<access-list-number> | access-group}>
Example:
Router (config)# dialer-list 1 protocol ip list 1
|
Creates a dialer list for traffic of interest and permits access to an entire protocol.
|
Step 9
|
Router(config)# ip access-list<access list
number>permit <ip source address>
Example:
Router (config)# ip access list 1 permit any
|
Defines traffic of interest.
|
Step 10
|
Router(config)# line <slot/wic/port>
Example:
Router (config-line)# line 0/0/0
|
Specifies the line configuration mode.
|
Step 11
|
Router(config-line)script dialer <regexp>
Example:
Router (config-line)# script-dialer gsm
|
Specifies a default modem chat script.
|
Step 12
|
Router(config-line)exit
Example:
Router (config-line)# exit
|
Exits line configuration mode.
|
Step 13
|
Router(config)# chat-script <script name> ""
"ATDT*99*<profile number>#" TIMEOUT <timeout value>
CONNECT
Example:
Router (config)# chat-script gsm "" "ATDT*98*2#"
TIMEOUT 60 "CONNECT"
|
Defines the ATDT commands when the dialer is initiated.
|
Step 14
|
Router(config)# interface cellular <slot/wic/port>
Example:
Router (config)# interface cellular 0/1/0
|
Specifies the cellular interface.
|
Step 15
|
Router(config-if)# dialer string <string>
Example:
Router (config)# dialer string gsm
|
Specifies the dialer script (defined using the chat script command).
|
Configuring DDR Backup
To monitor the primary connection and initiate the backup connection when needed, the router can use one of the following methods:
•Backup Interface—The backup interface that stays in standby mode until the primary interface line protocol is detected as down and then is brought up.
•Floating Static Route—The route through the backup interface has an administrative distance that is greater than the administrative distance of the primary connection route and therefore would not be in the routing table until the primary interface goes down.
•Dialer Watch—Dialer watch is a backup feature that integrates dial backup with routing capabilities.
Configuring Interfaces to Use a Backup Interface
To configure one or more interfaces to use a backup interface, use the following commands, beginning in global configuration mode.
SUMMARY STEPS
1. interface type number
2. backup interface cellular number
3. backup delay enable-delay disable-delay
DETAILED STEPS
| |
Command or Action
|
Purpose
|
Step 1
|
Router(config)# interface type number
Example:
Router(config)# interface ATM0/0/0
|
Specifies the interface to be backed up and begins interface configuration mode.
|
Step 2
|
Router(config-if)# backup interface cellular
<number>
Example:
Router(config-if)# backup interface cellular0/3/0
|
Specifies the cellular interface as backup.
|
Step 3
|
Router(config-if)# backup delay enable-delay
disable-delay
Example:
Router(config-if)# backup delay enable delay
|
Specifies delay between the physical interface going down and the backup interface being enabled, and between the physical interface coming back up and the backup being disabled.
|
Note You cannot configure a backup interface for the cellular interface and any other asynchronous serial interface.
Configuring DDR Backup Using Dialer Watch
To initiate dialer watch, you must configure the interface to perform DDR and backup. Use traditional DDR configuration commands, such as dialer maps, for DDR capabilities. To enable dialer watch on the backup interface and create a dialer list, use the following commands in interface configuration mode.
SUMMARY STEPS
1. configure terminal
2. interface type number
3. dialer watch group group-number
4. dialer watch-list group-number ip ip-address address-mask
5. dialer-list <dialer-group> protocol <protocol name> {permit | deny | list <access list number> | access-group}
6. ip access-list <access list number> permit <ip source address>
7. interface cellular <slot/wic/port>
8. dialer string <string>
DETAILED STEPS
| |
Command or Action
|
Purpose
|
Step 1
|
Router# configure terminal
Example:
Router# configure terminal
|
Enters global configuration mode from the terminal.
|
Step 2
|
Router(config)# interface type number
Example:
Router (config)# interface ATM0/0/0
|
Specifies the interface.
|
Step 3
|
Router(config-if)# dialer watch-group
group-number
Example:
Router(config-if)# dialer watch-group 2
|
Enables dialer watch on the backup interface.
|
Step 4
|
Router(config)# dialer watch-list group-number ip
ip-address address-mask
Example:
Router(config-if)# dialer watch-list 2 ip 10.4.0.254
255.255.0.0
|
Defines a list of all IP addresses to be watched.
|
Step 5
|
Router(config)# dialer-list <dialer-group> protocol
<protocol-name> {permit | deny | list
<access-list-number> | access-group}>
Example:
Router(config)# dialer-list 2 protocol ip permit
|
Creates dialer list for traffic of interest and permits access to an entire protocol.
|
Step 6
|
Router(config)# ip access-list<access list
number>permit <ip source address>
Example:
Router(config)# access list 2 permit 10.4.0.0
|
Defines traffic of interest.
Note Do not use the access list permit all command to avoid sending traffic to the IP network. This may result in call termination.
|
Step 7
|
Router(config)# interface cellular <slot/wic/port>
Example:
Router (config)# interface cellular 0/1/0
|
Specifies the cellular interface.
|
Step 8
|
Router(config-if)# dialer string <string>
Example:
Router (config)# dialer string cdma
|
Specifies the dialer script (defined using the chat script command).
|
Configuring DDR Backup Using Floating Static Route
To configure a floating static default route on the secondary interface beginning in the global configuration mode, perform the following tasks.
Note Make sure you have ip classless enabled on your router.
SUMMARY STEPS
1. configure terminal
2. ip route network-number network-mask {ip address | interface} [administrative distance] [name name]
DETAILED STEPS
| |
Command or Action
|
Purpose
|
Step 1
|
Router# configure terminal
Example:
Router# configure terminal
|
Enters global configuration mode from the terminal.
|
Step 2
|
Router(config)# ip route network-number network-mask
{ip-address | interface} [administrative distance]
[name name]
Example:
Router (config)# ip route 0.0.0.0 Dialer 2 track 234
|
Establishes a floating static route with the configured administrative distance through the specified interface.
Note A higher administrative distance should be configured for the route through the backup interface, so that it is used only when the primary interface is down.
|
Configuration Examples for the Wireless HWIC
This section provides the following configuration examples:
•Basic Cellular Interface Configuration
•Tunnel over Cellular Interface Configuration
•3G Wireless Modem as Backup with NAT and IPSec
Basic Cellular Interface Configuration
The following example shows how to configure the cellular interface to be used as a primary and is configured as the default route:
chat-script gsm "" "ATDT*98*2#" TIMEOUT 60 "CONNECT"
ppp chap hostname cisco@wwan.ccs
ppp chap password 0 cisco
ip route 0.0.0.0 0.0.0.0 Cellular0/0/0
dialer-list 1 protocol ip list 1
Tunnel over Cellular Interface Configuration
The following example shows how to configure the static IP address when a tunnel interface is configured with ip address unnumbered <cellular interface>:
ip unnumbered Cellular0/3/0
tunnel source Cellular0/3/0
tunnel destination 128.107.248.254
bandwidth receive 1400000
ip address 23.23.0.1 255.255.0.0
dialer string dial<carrier>
ppp chap hostname <hostname>
ppp chap password 0 <password>
! traffic of interest through the tunnel/cellular interface
ip route 10.10.0.0 255.255.0.0 Tunnel2
3G Wireless Modem as Backup with NAT and IPSec
The following example shows how to configure the 3G wireless modem on the router as backup with NAT and IPSec:
Note The receive and transmit speeds cannot be configured. The actual throughput depends on the cellular network service.
ip dhcp excluded-address 10.4.0.254
network 10.4.0.0 255.255.0.0
dns-server 66.209.10.201 66.102.163.231
default-router 10.4.0.254
chat-script gsm "" "atdt*98*1#" TIMEOUT 30 "CONNECT"
crypto isakmp key gsm address 128.107.241.234
crypto ipsec transform-set gsm ah-sha-hmac esp-3des
crypto map gsm1 10 ipsec-isakmp
interface ATM0/0/0.1 point-to-point
backup interface Cellular0/3/0
pppoe-client dial-pool-number 2
bandwidth receive 1400000
ppp chap hostname cisco@wwan.ccs
ppp chap password 0 cisco
description used as default gateway address for DHCP clients
ip address 10.4.0.254 255.255.0.0
ppp authentication chap callin
ppp chap hostname cisco@dsl.com
ppp chap password 0 cisco
ip local policy route-map track-primary-if
ip route 0.0.0.0 0.0.0.0 Dialer2 track 234
ip route 0.0.0.0 0.0.0.0 Cellular0/3/0 254
ip nat inside source route-map nat2cell interface Cellular0/3/0 overload
ip nat inside source route-map nat2dsl interface Dialer2 overload
icmp-echo 209.131.36.158 source-interface Dialer2
ip sla schedule 1 life forever start-time now
access-list 2 permit 10.4.0.0 0.0.255.255
access-list 101 permit ip 10.4.0.0 0.0.255.255 any
access-list 102 permit icmp any host 209.131.36.158
access-list 103 permit ip host 166.138.186.119 128.107.0.0 0.0.255.255
access-list 103 permit ip host 75.40.113.246 128.107.0.0 0.0.255.255
dialer-list 1 protocol ip list 1
dialer-list 2 protocol ip permit
route-map track-primary-if permit 10
route-map nat2dsl permit 10
route-map nat2cell permit 10
match interface Cellular0/3/0
