Cisco Router 860, 880 Series User Manual

 
PART 2
Configuring the Router 

CH A P T E R
 
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Cisco 860 and Cisco 880 Series Integrated Services Routers Software Configuration Guide
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5
Configuring Backup Data Lines and Remote 
Management
This chapter describes configuring backup data lines and remote management in the following sections:
 Configuring Backup Interfaces, page 5-2
 Configuring Dial Backup and Remote Management Through the Console or Auxiliary Port, 
page 5-2
 Configuring Data Line Backup and Remote Management Through the ISDN S/T Port, page 5-8....

 
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Chapter 5      Configuring Backup Data Lines and Remote Management
  Configuring Backup Interfaces
Configuring Backup Interfaces
When the router receives an indication that the primary interface is down, the backup interface becomes 
enabled. After the primary connection has been restored for a specified period, the backup interface is 
disabled. 
Even if the backup interface comes out of standby...

 
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Chapter 5      Configuring Backup Data Lines and Remote Management
  Configuring Dial Backup and Remote Management Through the Console or Auxiliary Port
Figure 5-1 shows the network configuration used for remote management access and for providing 
backup to the primary WAN line.
Figure 5-1 Dial Backup and Remote Management Through the Auxiliary Port
To configure dial backup and remote management for...

 
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Chapter 5      Configuring Backup Data Lines and Remote Management
  Configuring Dial Backup and Remote Management Through the Console or Auxiliary Port
Step 3exit
Example:
Router(config-dhcp)#exitRouter(config)#
Exits config-dhcp mode and enters global 
configuration mode.
Step 4chat-script script-name expect-send
Example:
Router(config)# chat-script Dialout ABORT 
ERROR ABORT BUSY ““ “AT” OK “ATDT...

 
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Chapter 5      Configuring Backup Data Lines and Remote Management
  Configuring Dial Backup and Remote Management Through the Console or Auxiliary Port
Step 10ip nat inside source {list access-list-number} 
{interface type number | pool name} [overload]
Example:
Router(config)# ip nat inside source list 
101 interface Dialer 3 overload
Enables dynamic translation of addresses on the 
inside...

 
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Chapter 5      Configuring Backup Data Lines and Remote Management
  Configuring Dial Backup and Remote Management Through the Console or Auxiliary Port
Example
The following configuration example specifies an IP address for the ATM interface through PPP and 
IPCP address negotiation and dial backup over the console port.
!
ip name-server 192.168.28.12ip dhcp excluded-address 192.168.1.1
!
ip dhcp...

 
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Chapter 5      Configuring Backup Data Lines and Remote Management
  Configuring Dial Backup and Remote Management Through the Console or Auxiliary Port
interface ATM0 mtu 1492
 no ip address
 no atm ilmi-keepalive pvc 0/35
 pppoe-client dial-pool-number 1
!dsl operating-mode auto
!
! Primary WAN link.interface Dialer1
 ip address negotiated
 ip nat outside encapsulation ppp
 dialer pool 1
 ppp...

 
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Chapter 5      Configuring Backup Data Lines and Remote Management
  Configuring Data Line Backup and Remote Management Through the ISDN S/T Port
! PC IP address behind CPE.access-list 101 permit ip 192.168.0.0 0.0.255.255 any
access-list 103 permit ip 192.168.0.0 0.0.255.255 any
!! Watch multiple IP addresses because peers are alternated 
! among them when the CPE is connected.
dialer watch-list 1...