تكوين IPSec بين ثلاثة موجهات باستخدام العناوين الخاصة

Current configuration:  
!  
version 12.3
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!  
hostname router1  
!
boot-start-marker
boot-end-marker
!
!
clock timezone EST 0
no aaa new-model
ip subnet-zero
!
!
ip audit po max-events 100
no ftp-server write-enable
!


!--- Configure Internet Key Exchange (IKE) policy and !--- pre-shared keys for each peer.



!--- IKE policy defined for peers.


crypto isakmp policy 4  
authentication pre-share


!--- Pre-shared keys for different peers.
   

crypto isakmp key xxxxxx1234 address 100.228.202.154  
crypto isakmp key xxxxxx1234 address 200.154.17.130  
!  
!  


!--- IPSec policies:


crypto ipsec transform-set encrypt-des esp-des  
!  
!  
crypto map combined local-address Serial0


!--- Set the peer, transform-set and encryption traffic for tunnel peers.


crypto map combined 20 ipsec-isakmp  
   set peer 100.228.202.154  
   set transform-set encrypt-des  
   match address 106  
crypto map combined 30 ipsec-isakmp  
   set peer 200.154.17.130  
   set transform-set encrypt-des  
   match address 105  
!  
!  
interface Serial0  
   ip address 100.232.202.210 255.255.255.252   
   ip nat outside 
   serial restart-delay 0 


!--- Apply the crypto map to the interface.
  

   crypto map combined  
!  
interface FastEthernet0  
   ip address 192.168.1.1 255.255.255.0    
   ip nat inside    
!
ip classless  
ip route 0.0.0.0 0.0.0.0 100.232.202.209  
no ip http server  
no ip http secure-server
!


!--- Define traffic for NAT.


ip nat inside source route-map nonat interface Serial0 overload  


!--- Access control list (ACL) that shows traffic to encrypt over the tunnel.
  

access-list 105 permit ip 192.168.1.0 0.0.0.255 192.168.3.0 0.0.0.255  
access-list 106 permit ip 192.168.1.0 0.0.0.255 192.168.2.0 0.0.0.255  


!--- ACL to avoid the traffic through NAT over the tunnel. 


access-list 150 deny ip 192.168.1.0 0.0.0.255 192.168.2.0 0.0.0.255  
access-list 150 deny ip 192.168.1.0 0.0.0.255 192.168.3.0 0.0.0.255  


!--- ACL to perform NAT on the traffic that does not go over the tunnel.


access-list 150 permit ip 192.168.1.0 0.0.0.255 any


!--- Do not perform NAT on the IPSec traffic.

  
route-map nonat permit 10  
  match ip address 150  
!
control-plane
!
!
line con 0
line aux 0
line vty 0 4
!
!
end 

Current configuration:  
!
version 12.3
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
! 
hostname router2
!  
boot-start-marker
boot-end-marker
!
!
clock timezone EST 0
no aaa new-model
ip subnet-zero
!
!
ip audit po max-events 100
no ftp-server write-enable
!


!--- Configure IKE policy and pre-shared keys for each peer.




!--- IKE policy defined for peers.


crypto isakmp policy 4  
    authentication pre-share


!--- Pre-shared keys for different peers.
  

crypto isakmp key xxxxxx1234 address  100.228.202.154  
crypto isakmp key xxxxxx1234 address  100.232.202.210  
!  
!


!--- IPSec policies.

 
crypto ipsec transform-set encrypt-des esp-des 
!  
!  
crypto map combined local-address Ethernet1


!--- Set the peer, transform-set and encryption traffic for tunnel peers.


crypto map combined 7 ipsec-isakmp 
      set peer 100.232.202.210  
      set transform-set encrypt-des  
      match address 105  

crypto map combined 8 ipsec-isakmp  
      set peer 100.228.202.154  
      set transform-set encrypt-des  
      match address 106  
!  
!  
!  
interface Ethernet0  
      ip address 192.168.3.1 255.255.255.0   
      ip nat inside  
!  
interface Ethernet1  
      ip address 200.154.17.130 255.255.255.224 
      ip nat outside 


!--- Apply the crypto map to the interface.


      crypto map combined  
!  
ip classless  
ip route 0.0.0.0 0.0.0.0 200.154.17.129  
no ip http server
no ip http secure-server
!


!--- Define traffic for NAT.


ip nat inside source route-map nonat interface Ethernet1 overload  


!--- ACL shows traffic to encrypt over the tunnel. 
 

access-list 105 permit ip 192.168.3.0 0.0.0.255 192.168.1.0 0.0.0.255  
access-list 106 permit ip 192.168.3.0 0.0.0.255 192.168.2.0 0.0.0.255  


!--- ACL to avoid the traffic through NAT over the tunnel.


access-list 150 deny ip 192.168.3.0 0.0.0.255 192.168.1.0 0.0.0.255  
access-list 150 deny ip 192.168.3.0 0.0.0.255 192.168.2.0 0.0.0.255  


!--- ACL to perform NAT on the traffic that does not go over the tunnel.
 

access-list 150 permit ip any any


!--- Do not perform NAT on the IPSec traffic.


route-map nonat permit 10  
  match ip address 150  
!
!
!
control-plane
!
!
line con 0
line aux 0
line vty 0 4
!
!
end 

Current configuration:  
!
version 12.3
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname router3
!
boot-start-marker
boot-end-marker
!
!
clock timezone EST 0
no aaa new-model
ip subnet-zero
!
!
ip audit po max-events 100
no ftp-server write-enable
!


!--- Configure IKE policy and pre-shared keys for each peer.



!--- IKE policy defined for peers.


crypto isakmp policy 4  
  authentication pre-share 



!--- Pre-shared keys for different peers.


crypto isakmp key xxxxxx1234 address 100.232.202.210  
crypto isakmp key xxxxxx1234 address 200.154.17.130  
!  
!


!--- IPSec policies:
 

crypto ipsec transform-set encrypt-des esp-des 
!  
!


!--- Set the peer, transform-set and encryption traffic for tunnel peers.


crypto map combined local-address Serial0  
crypto map combined 7 ipsec-isakmp  
  set peer 100.232.202.210  
  set transform-set encrypt-des  
  match address 106  
crypto map combined 8 ipsec-isakmp  
  set peer 200.154.17.130  
  set transform-set encrypt-des  
  match address 105  
!  
!  
interface Serial0  
  ip address 100.228.202.154 255.255.255.252  
  ip nat outside
  serial restart-delay 0


!--- Apply the crypto map to the interface.
  

  crypto map combined  
!  
  interface FastEthernet0  
  ip address 192.168.2.1 255.255.255.0  
  ip nat inside 
!  
ip classless  
ip route 0.0.0.0 0.0.0.0 100.228.202.153  
no ip http server 
no ip http secure-server 
!


!--- Define traffic for NAT.


ip nat inside source route-map nonat interface Serial0 overload  


!--- ACL that shows traffic to encrypt over the tunnel.
  

access-list 105 permit ip 192.168.2.0 0.0.0.255 192.168.3.0 0.0.0.255  
access-list 106 permit ip 192.168.2.0 0.0.0.255 192.168.1.0 0.0.0.255  


!--- ACL to avoid the traffic through NAT over the tunnel.


access-list 150 deny ip 192.168.2.0 0.0.0.255 192.168.3.0 0.0.0.255  
access-list 150 deny ip 192.168.2.0 0.0.0.255 192.168.1.0 0.0.0.255  


!--- ACL to perform NAT on the traffic that does not go over the tunnel.


access-list 150 permit ip 192.168.2.0 0.0.0.255 any


!--- Do not perform NAT on the IPSec traffic.


route-map nonat permit 10  
  match ip address 150  
!
!
!
control-plane
!
!
line con 0
line aux 0
line vty 0 4
 login
!
!
end