Cellular Wireless Modem As Backup With Nat And Ipsec Configuration - Cisco 1941W Configuration Manual

Configuring Backup Interfaces
DETAILED STEPS
Command or Action
Step 1 configure terminal
Example:
Router# configure terminal
Step 2
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

Cellular Wireless Modem as Backup with NAT and IPSec Configuration

The following example shows how to configure the 3G wireless modem as backup with NAT and IPsec
on either GSM or CDMA networks.
Note The receive and transmit speeds cannot be configured. The actual throughput depends on the cellular
network service.
Router# sh run
Building configuration...
Current configuration : 5833 bytes
!
! Last configuration change at 18:26:15 UTC Wed Sep 30 2009
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
service internal
!
hostname Router
!
boot-start-marker
boot-end-marker
!
!
no aaa new-model
!
!
!
service-module wlan-ap 0 bootimage autonomous
!
no ipv6 cef
ip source-route
ip cef
!
!
ip multicast-routing
Cisco 3900 Series, Cisco 2900 Series, and Cisco 1900 Series Integrated Services Routers Generation 2 Software Configuration Guide
104
Chapter Configuring Backup Data Lines and Remote Management
Purpose
Enters global configuration mode from the terminal.
Establishes a floating static route with the
configured administrative distance through the
specified interface.
A higher administrative distance should be
configured for the route through the backup
interface, so that the backup interface is used only
when the primary interface is down.
OL-20696-04