!assigning hostname to router
hostname R2
!banner message
banner motd #Unauthorized access to this device is prohibited!#
!
!configuring aaa authentication on the router
aaa new-model
aaa authentication login default local
!
!creating a username for R2 and password as it will need it for authentication to 
!establish a link to R1
username R1 password kelly
!
!setting ssh to use version 2 only
ip ssh version 2
!
!disabling dns lookup
no ip domain-lookup
!
!creating a domain name for ssh. this is used to generate the key
ip domain-name alanR2.com
!
!generating ssh keys
crypto key generate rsa
1024
!
!preventing messages interrupting CLI on console connection
line con 0
logging synchronous
!
! disabling aux connection
line aux 0
transport output none
no exec
exec-timeout 0 1
no password
!
!preventing messages interrupting CLI on all vty connections
line vty 0 15
!allowing traffic in the acl
access-class 1 in
logging synchronous
!enabling only ssh on the vty connections
transport input ssh
!
!configuring int g0/0
int g0/0
ip address 10.111.9.1 255.255.255.0
!configuring acl on interface
ip access-group 101 in
!disabling cdp on the int
no cdp enable
no shut
!
!assigning ip to s0/0/0
int s0/0/0
encapsulation ppp 
ppp authentication chap 
ip address 10.111.0.14 255.255.255.252
!disabling cdp on the int
no cdp enable
no shut
!
!setting up OSPF
router ospf 1 
!assigning the router an OSPF ID
router-id 2.2.2.2
!summarising the ospf area 
area 3 range 10.111.9.0 255.255.255.0 
!adding the networks to advertise
network 10.111.0.12 0.0.0.3 area 0
network 10.111.9.0 0.0.0.255 area 3
!stopping advertisements being sent out on interface
passive-interface g0/0
!
!acl for this router
!stops traffic from 10.111.9.0/24 accessing internal network.
access-list 101 deny ip 10.111.9.0 0.0.0.255 10.111.0.0 0.0.255.255
!stops traffic from 10.111.9.0/24 accessing internal network using global ips
access-list 101 deny ip 10.111.9.0 0.0.0.255 202.100.37.0 0.0.0.255
!allows everything else
access-list 101 permit ip any any
!
!assigning as password and username to the router
username alan secret kelly
!configuring a password on privileged mode
enable secret kelly
!
!end
end
!copy running config to startup config
copy r s

!