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Cisco 819 Series Integrated Services Router Software Configuration Guide
OL-23590-02
Chapter 5 Basic Router Configuration
Configuring WAN Interfaces
DETAILED STEPS
Configuring the Cellular Wireless WAN Interface
The Cisco 819 ISRs provide a Third-Generation (3G) wireless interface for use over Global System for
Mobile Communications (GSM) and code division multiple access (CDMA) networks. The interface is
a 34-millimetre embedded mini express card.
Its primary application is WAN connectivity as a backup data link for critical data applications. However,
the 3G wireless interface can also function as the router’s primary WAN connection.
To configure the 3G cellular wireless interface, follow these guidelines and procedures:
• Prerequisites for Configuring the 3G Wireless Interface, page 5-11
• Restrictions for Configuring the Cellular Wireless Interface, page 5-11
• Data Account Provisioning, page 5-12
• Configuring a Cellular Interface, page 5-16
• Configuring DDR, page 5-17
• Examples for Configuring Cellular Wireless Interfaces, page 5-20
• Configuring Dual SIM for Cellular Networks, page 5-22
Command Purpose
Step 1
interface type number
Example:
Router(config)# interface gigabitethernet 0
Router(config-if)#
Enters the configuration mode for a Gigabit
Ethernet WAN interface on the router.
Step 2
ip address ip-address mask
Example:
Router(config-if)# ip address 192.168.12.2
255.255.255.0
Router(config-if)#
Sets the IP address and subnet mask for the
specified Gigabit Ethernet interface.
Step 3
no shutdown
Example:
Router(config-if)# no shutdown
Router(config-if)#
Enables the Ethernet interface, changing its
state from administratively down to
administratively up.
Step 4
exit
Example:
Router(config-if)# exit
Router(config)#
Exits configuration mode for the Gigabit
Ethernet interface and returns to global
configuration mode.