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标题: GRE over IPSEC两种配置方法 [打印本页]

作者: IT民工    时间: 2009-11-25 13:29
标题: GRE over IPSEC两种配置方法
  第一种,只是使用到了GRE,没有使用GRE封装,只是感兴趣刘通过GRE隧道,用IPSEC加密

  R1

  crypto isakmp policy 10

  authentication pre-share

  crypto isakmp key cisco address 12.12.12.2

  crypto ipsec transform-set myset esp-des esp-md5-hmac

  mode transport

  crypto map mymap 10 ipsec-isakmp

  set peer 12.12.12.2

  set transform-set myset

  match address 101

  interface Loopback0

  ip address 10.1.1.1 255.255.255.0

  interface Tunnel0

  ip address 21.21.21.1 255.255.255.0

  tunnel source FastEthernet0/0

  tunnel destination 12.12.12.2

  interface FastEthernet0/0

  ip address 12.12.12.1 255.255.255.0

  crypto map mymap

  router ospf 1

  log-adjacency-changes

  network 10.1.1.1 0.0.0.0 area 0

  network 21.21.21.1 0.0.0.0 area 0

  access-list 101 permit ip host 12.12.12.1 host 12.12.12.2

  @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@

  第二种:真正的GRE over IPSEC先封装GRE再用IPSEC加密

  R2

  crypto isakmp policy 10

  authentication pre-share

  crypto isakmp key cisco address 12.12.12.1

  crypto ipsec transform-set myset esp-des esp-md5-hmac

  mode transport

  crypto ipsec profile mysecfile

  set transform-set myset

  interface Loopback0

  ip address 20.1.1.1 255.255.255.0

  interface Tunnel0

  ip address 21.21.21.2 255.255.255.0

  tunnel source FastEthernet0/0

  tunnel destination 12.12.12.1

  tunnel protection ipsec profile mysecfile

  interface FastEthernet0/0

  ip address 12.12.12.2 255.255.255.0

  router ospf 1

  log-adjacency-changes

  network 20.1.1.1 0.0.0.0 area 0

  network 21.21.21.2 0.0.0.0 area 0

  验证:show crypto engine connections active




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