Cisco Router 800 Series Software Configuration Guide
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4-33 Cisco 800 Series Software Configuration Guide 78-5372-06 Chapter 4 Network Scenarios Configuring Dial Backup over the ISDN Interface Configuration Example The following configuration example for a Cisco 837 router specifies an IP address for the ATM interface via PPP/IPCP address negotiation and dial backup over the console port. ! version 12.2 no service pad service timestamps debug uptime service timestamps log uptime no service password-encryption ! hostname Router ! memory-size iomem...
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Chapter 4 Network Scenarios Configuring Dial Backup over the ISDN Interface 4-34 Cisco 800 Series Software Configuration Guide 78-5372-06 ip tcp adjust-mss 1452 hold-queue 100 out ! interface ATM0 mtu 1492 no ip address no atm ilmi-keepalive pvc 0/35 pppoe-client dial-pool-number 1 ! dsl operating-mode auto ! !Dial backup and remote management physical interface interface Async1 no ip address encapsulation ppp dialer in-band dialer pool-member 3 async default routing async dynamic routing async...
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4-35 Cisco 800 Series Software Configuration Guide 78-5372-06 Chapter 4 Network Scenarios Configuring Dial Backup over the ISDN Interface peer default ip address 192.168.2.2 no cdp enable ! ! Need to use your own ISP account and password ppp pap sent-username account password 7 pass ppp ipcp dns request ppp ipcp wins request ppp ipcp mask request ! ! IP NAT over Dialer interface using route-map ip nat inside source route-map main interface Dialer1 overload ip nat inside source route-map secondary...
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Chapter 4 Network Scenarios Configuring Dial Backup over the ISDN Interface 4-36 Cisco 800 Series Software Configuration Guide 78-5372-06 route-map main permit 10 match ip address 101 match interface Dialer1 ! route-map secondary permit 10 match ip address 103 match interface Dialer3 ! ! line con 0 exec-timeout 0 0 ! ! Change console to aux function modem enable stopbits 1 line aux 0 exec-timeout 0 0 ! ! To enable and communicate with the external modem properly script dialer Dialout modem InOut...
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4-37 Cisco 800 Series Software Configuration Guide 78-5372-06 Chapter 4 Network Scenarios Configuring Dial Backup over the ISDN Interface Configuring the Cisco 836 Router’s ISDN Settings The user must first configure the Cisco 836 router ISDN settings to configure the router interface as a backup interface. Follow the steps below to configure the Cisco 836 router ISDN interface as a backup interface, beginning in global configuration mode. NoteTraffic of interest must be present to activate...
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Chapter 4 Network Scenarios Configuring Dial Backup over the ISDN Interface 4-38 Cisco 800 Series Software Configuration Guide 78-5372-06 Configuring Dial Backup and Remote Management Settings As described in the “Dial Backup Feature Limitations and Configuration” section on page 4-25, backup interface, static routes, and dialer watch are the three methods used for implementing dial backup and remote management. This section provides detailed procedures for configuring these three methods....
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4-39 Cisco 800 Series Software Configuration Guide 78-5372-06 Chapter 4 Network Scenarios Configuring Dial Backup over the ISDN Interface NoteWhen the static routes are configured, the primary interface protocol must go down in order to activate the floating static route. Follow the steps below to configure the dynamic route on the Cisco 836 router ISDN port, beginning in global configuration mode. NoteThe floating static route depends on the routing protocol convergence times when dynamic...
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Chapter 4 Network Scenarios Configuring Dial Backup over the ISDN Interface 4-40 Cisco 800 Series Software Configuration Guide 78-5372-06 Configuration Example The next three configuration examples shows sample configurations for the three dial backup interface and remote management methods. The following is an example of configuring dial backup and remote management using the backup interface command. Cisco836# ! vpdn enable ! vpdn-group 1 accept-dialin protocol pppoe ! !Specifies the ISDN...
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4-41 Cisco 800 Series Software Configuration Guide 78-5372-06 Chapter 4 Network Scenarios Configuring Dial Backup over the ISDN Interface ip address 192.168.1.1 255.255.255.0 hold-queue 100 out ! !ISDN interface to be used as a backup interface interface BRI0 no ip address encapsulation ppp dialer pool-member 1 isdn switch-type basic-net3 ! interface ATM0 backup interface BRI0 no ip address no atm ilmi-keepalive pvc 1/40 encapsulation aal5snap pppoe-client dial-pool-number 2 ! dsl operating-mode...
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Chapter 4 Network Scenarios Configuring Dial Backup over the ISDN Interface 4-42 Cisco 800 Series Software Configuration Guide 78-5372-06 The following is an example of configuring dial backup and remote management using floating static routes. Cisco836# ! vpdn enable ! vpdn-group 1 accept-dialin protocol pppoe ! !Specifies the ISDN switch type isdn switch-type basic-net3 ! interface Ethernet0 ip address 192.168.1.1 255.255.255.0 hold-queue 100 out ! !ISDN interface to be used as a backup...