Cisco Router 800 Series Software Configuration Guide

 
4-53
Cisco 800 Series Software Configuration Guide
78-5372-06
Chapter 4      Network Scenarios
Configuring Dial Backup over the ISDN Interface
! Multiple routes because peer ip address are alternated among them 
when CPE gets connected
ip route 0.0.0.0 0.0.0.0 64.161.31.254 50
ip route 0.0.0.0 0.0.0.0 66.125.91.254 50
ip route 0.0.0.0 0.0.0.0 64.174.91.254 50
ip route 0.0.0.0 0.0.0.0 63.203.35.136 80
ip route 0.0.0.0 0.0.0.0 63.203.35.137 80
ip route 0.0.0.0 0.0.0.0 63.203.35.138 80
ip route 0.0.0.0...

 
Chapter 4      Network Scenarios
Configuring Dial Backup over the ISDN Interface
4-54
Cisco 800 Series Software Configuration Guide
78-5372-06 exec-timeout 0 0
!
! To enable and communicate with the external modem properly
script dialer Dialout
modem InOut
modem autoconfigure discovery
transport input all 
stopbits 1
speed 115200
flowcontrol hardware
line vty 0 4
exec-timeout 0 0
password cisco
login
!
scheduler max-task-time 5000
end
Configuring Remote Management for the Cisco SOHO 91 Router
Follow...

 
4-55
Cisco 800 Series Software Configuration Guide
78-5372-06
Chapter 4      Network Scenarios
Configuring Dial Backup over the ISDN Interface
!
!Remote management account
username dialin password cisco
modemcap entry MY_USR_MODEM:MSC=&F1S0=1
!
interface Ethernet0
 ip address 192.168.1.1 255.255.255.0
 ip nat inside
 hold-queue 100 out
!
interface Async1
 no ip address
 encapsulation ppp
 dialer in-band
autodetect encapsulation ppp
 async default routing
 async dynamic routing
 async mode dedicated...

 
Chapter 4      Network Scenarios
Configuring the DHCP Server
4-56
Cisco 800 Series Software Configuration Guide
78-5372-06 scheduler max-task-time 5000
end
Configuring the DHCP Server
Dynamic Host Configuration Protocol (DHCP) is an industry-standard protocol 
for automatically assigning IP configurations to workstations. DHCP uses a 
client-server model for address allocation. As administrator, you can configure 
one or more DHCP servers to provide IP address assignment and other 
TCP/IP-oriented...

 
4-57
Cisco 800 Series Software Configuration Guide
78-5372-06
Chapter 4      Network Scenarios
Configuring the DHCP Server
Use the dhcp-interface commands to add, remove, and list the IP addresses of 
your server’s hardware cards. Interfaces are named with the IP address and net 
mask for the physical device. 
If you have two interface cards for the server host, use two dhcp-interface create 
commands to register them both. Use the net mask suffix 16 or 24 as part of the 
address. 
nrcmd>...

 
Chapter 4      Network Scenarios
Configuring the DHCP Server
4-58
Cisco 800 Series Software Configuration Guide
78-5372-06
Dynamic Addressing Received via IPCP
Use the ip address negotiated interface command to enable a Cisco router to 
automatically negotiate its own registered WAN interface IP address from a 
central server (via PPP/IPCP). Use the same command to enable all remote hosts 
to use this single registered IP address to access the global Internet. The following 
example shows an IPCP...

 
4-59
Cisco 800 Series Software Configuration Guide
78-5372-06
Chapter 4      Network Scenarios
Configuring the DHCP Server
logging rate-limit console 10 except errors
!
username ISP password ISP
ip subnet-zero
ip name-server !ISP
ip name-server !ISP
ip name-server !ISP
!
no ip finger
!         
ip audit notify log
ip audit po max-events 100
ip audit smtp spam 25111
no ip dhcp-client network-discovery
vpdn enable
no vpdn logging
!
vpdn-group 1
 accept-dialin
  protocol pppoe
  virtual-template 2
!
!
!...

 
Chapter 4      Network Scenarios
Configuring the DHCP Server
4-60
Cisco 800 Series Software Configuration Guide
78-5372-06  no cdp enable
!
interface ATM1/0
 no ip address
 no atm ilmi-keepalive
!
interface ATM1/0.1 point-to-point
 pvc 1/40 
  encapsulation aal5mux ppp Virtual-Template1
 !
!
interface ATM1/0.2 point-to-point
 pvc 1/41 
  encapsulation aal5snap
  protocol pppoe
 !
!
interface Virtual-Template1
 ip unnumbered Loopback1
 peer default ip address pool test
!
interface Virtual-Template2
 ip...

 
4-61
Cisco 800 Series Software Configuration Guide
78-5372-06
Chapter 4      Network Scenarios
Configuring the DHCP Server
no ip http server
!
dialer-list 1 protocol ip permit
no cdp run
!
!
dial-peer cor custom
!
!
!
!
!
line con 0
 exec-timeout 0 0
 transport input none
line aux 0
 exec-timeout 0 0
 no activation-character
 script dialer Dialout
 no vacant-message
 modem InOut
 modem autoconfigure type MY_USR_MODEM
 transport input all
 transport output telnet
 escape-character NONE
 autohangup...

 
Chapter 4      Network Scenarios
Configuring the DHCP Server
4-62
Cisco 800 Series Software Configuration Guide
78-5372-06
Use the aaa new-model global configuration command to enable 
authentication, authorization, and accounting (AAA). AAA must be 
configured if you plan to use RADIUS. 
Use the aaa authentication global configuration command to define the 
method lists for RADIUS authentication.
Use line and interface commands to enable the defined method lists to be 
used.
For instructions on...