Topology map
R2 is an extranet, R1 is a border router. R3,R4 for internal routers
Basic Configuration
R2 configuration:
R2#sh Run
Building configuration ...
Current configuration:794 bytes
!
Version 12.4
Service Timestamps Debug DateTime msec
Service Timestamps log datetime msec
No service password-encryption
!
Hostname R2
!
Boot-start-marker
Boot-end-marker
!
Enable password Cisco
!
No AAA New-model
Memory-size Iomem 5
!
!
IP CEF
No IP domain Lookup
!
Interface Loopback0
IP address 2.2.2.2 255.255.255.0
!
Interface serial0/0
IP address 12.1.1.2 255.255.255.0
Serial Restart-delay 0
!
Interface SERIAL0/1
No IP address
Shutdown
Serial Restart-delay 0
!
Interface SERIAL0/2
No IP address
Shutdown
Serial Restart-delay 0
!
Interface SERIAL0/3
No IP address
Shutdown
Serial Restart-delay 0
!
IP HTTP Server
!
Control-plane
!
Line con 0
Exec-timeout 0 0
Logging synchronous
Line aux 0
Line vty 0 4
!
!
End