路由器和路由器之间的VPN配置

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Hub Router
  
  2503#show running-config
  Building configuration...
  Current configuration : 1466 bytes
  !
  version 12.2
  
  service timestamps debug datetime msec
  service timestamps log uptime
  no service password-encryption
  !
  hostname 2503
  !
  
  
  !
  ip subnet-zero
  !
  
  !
  
  !--- Configuration for IKE policies.
  
  crypto isakmp policy 10
  
  !--- Enables the IKE policy configuration (config-isakmp)
  !--- command mode, where you can specify the parameters that
  !--- are used during an IKE negotiation.
  
  hash md5
  authentication pre-share
  crypto isakmp key cisco123 address 200.1.2.1
  crypto isakmp key cisco123 address 200.1.3.1
  
  !--- Specifies the preshared key "cisco123" which should
  !--- be identical at both peers. This is a global
  !--- configuration mode command.
  
  !
  
  !--- Configuration for IPSec policies.
  
  crypto ipsec transform-set myset esp-des esp-md5-hmac
  
  !--- Enables the crypto transform configuration mode,
  !--- where you can specify the transform sets that are used
  !--- during an IPSec negotiation.
  
  !
  crypto map mymap 10 ipsec-isakmp
  
  !--- Indicates that IKE is used to establish
  !--- the IPSec security association for protecting the
  !--- traffic specified by this crypto map entry.
  
  set peer 200.1.2.1
  
  !--- Sets the IP address of the remote end.
  
  set transform-set myset
  
  !--- Configures IPSec to use the transform-set
  !--- "myset" defined earlier in this configuration.
  
  match address 110
  
  !--- Specifyies the traffic to be encrypted.
  
  crypto map mymap 20 ipsec-isakmp
  set peer 200.1.3.1
  set transform-set myset
  match address 120
  !
  !
  !
  !
  interface Loopback0
  ip address 10.1.1.1 255.255.255.0
  !
  interface Ethernet0
  ip address 200.1.1.1 255.255.255.0
  no ip route-cache
  
  !--- You must enable process switching for IPSec
  !--- to encrypt outgoing packets. This command disables fast switching.
  
  no ip mroute-cache
  crypto map mymap
  
  !--- Configures the interface to use the
  !--- crypto map "mymap" for IPSec.
  
  !
  
  !--- Output suppressed.
  
  ip classless
  ip route 172.16.1.0 255.255.255.0 Ethernet0
  ip route 192.168.1.0 255.255.255.0 Ethernet0
  ip route 200.1.0.0 255.255.0.0 Ethernet0
  ip http server
  
  !
  access-list 110 permit ip 10.1.1.0 0.0.0.255 172.16.1.0 0.0.0.255
  access-list 110 permit ip 192.168.1.0 0.0.0.255 172.16.1.0 0.0.0.255
  access-list 120 permit ip 10.1.1.0 0.0.0.255 192.168.1.0 0.0.0.255
  access-list 120 permit ip 172.16.1.0 0.0.0.255 192.168.1.0 0.0.0.255
  
  !--- This crypto ACL-permit identifies the
  !--- matching traffic flows to be protected via encryption.
  
  Spoke 1 Router
  
  2509
  a#show running-config
  Building configuration...
  Current configuration : 1203 bytes
  !
  version 12.2
  
  service timestamps debug datetime msec
  service timestamps log uptime
  no service password-encryption
  !
  hostname 2509a
  !
  enable secret 5 $1$DOX3$rIrxEnTVTw/7LNbxi.akz0
  
  !
  ip subnet-zero
  no ip domain-lookup
  !
  
  !
  crypto isakmp policy 10
  hash md5
  authentication pre-share
  crypto isakmp key cisco123 address 200.1.1.1
  !
  !
  crypto ipsec transform-set myset esp-des esp-md5-hmac
  !
  crypto map mymap 10 ipsec-isakmp
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