CCIE学习笔记 ----GRE over IPsec

GRE over IPsec

这种东西主要可以传nat和各种加密包头的东西

R1:

!

interface Ethernet0/0

ip address 192.168.12.1 255.255.255.0

ip ospf 1 area 0

---------------------------------------------------------------------------------

R2:

crypto isakmp policy 10

authentication pre-share

crypto isakmp key cisco address 192.168.34.4

!

!

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

mode transport

!

!

!

crypto map jiance 1 ipsec-isakmp

set peer 192.168.34.4

set transform-set ccna

match address 100

!

!

!

!

!

interface Tunnel0

ip address 10.0.0.1 255.255.255.0

tunnel source Ethernet0/1

tunnel destination 192.168.34.4

tunnel key 100

!

interface Ethernet0/0

ip address 192.168.12.2 255.255.255.0

!

interface Ethernet0/1

ip address 192.168.23.2 255.255.255.0

crypto map jiance

!

router ospf 1

network 192.168.23.2 0.0.0.0 area 0

!

router ospf 2

network 10.0.0.1 0.0.0.0 area 0

network 192.168.12.2 0.0.0.0 area 0

!

ip forward-protocol nd

!

!

ip route 192.168.34.0 255.255.255.0 192.168.23.3

!

!

!

access-list 100 permit ip host 192.168.23.2 host 192.168.34.4

!

---------------------------------------------------------------------------------

R3:

!

interface Ethernet0/0

ip address 192.168.34.3 255.255.255.0

!

interface Ethernet0/1

ip address 192.168.23.3 255.255.255.0

!

!

router ospf 1

network 0.0.0.0 255.255.255.255 area 0

!

---------------------------------------------------------------------------------

R4:

crypto isakmp policy 10

authentication pre-share

crypto isakmp key cisco address 192.168.23.2

!

!

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

mode transport

!

!

!

crypto map jiance 1 ipsec-isakmp

set peer 192.168.23.2

set transform-set ccna

match address 100

!

!

!

!

!

interface Tunnel0

ip address 10.0.0.2 255.255.255.0

tunnel source Ethernet0/0

tunnel destination 192.168.23.2

tunnel key 100

!

interface Ethernet0/0

ip address 192.168.34.4 255.255.255.0

crypto map jiance

!

interface Ethernet0/1

ip address 192.168.45.4 255.255.255.0

!

router ospf 1

network 192.168.34.4 0.0.0.0 area 0

!

router ospf 2

network 10.0.0.2 0.0.0.0 area 0

!

!

!

access-list 100 permit ip host 192.168.34.4 host 192.168.23.2

!

---------------------------------------------------------------------------------

R5

!

interface Ethernet0/1

ip address 192.168.45.5 255.255.255.0

ip ospf 1 area 0

!

---------------------------------------------------------------------------------

实验效果：

R1#show ip ospf neighbor

Neighbor ID     Pri   State           Dead Time   Address         Interface

192.168.12.2      1   FULL/BDR        00:00:38    192.168.12.2    Ethernet0/0

R1#

---------------------------------------------------------------------------------

R2#show ip route

Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP

D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area

N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2

E1 - OSPF external type 1, E2 - OSPF external type 2

i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2

ia - IS-IS inter area, * - candidate default, U - per-user static route

o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP

a - application route

+ - replicated route, % - next hop override

Gateway of last resort is not set

10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks

C        10.0.0.0/24 is directly connected, Tunnel0

L        10.0.0.1/32 is directly connected, Tunnel0

192.168.12.0/24 is variably subnetted, 2 subnets, 2 masks

C        192.168.12.0/24 is directly connected, Ethernet0/0

L        192.168.12.2/32 is directly connected, Ethernet0/0

192.168.23.0/24 is variably subnetted, 2 subnets, 2 masks

C        192.168.23.0/24 is directly connected, Ethernet0/1

L        192.168.23.2/32 is directly connected, Ethernet0/1

S     192.168.34.0/24 [1/0] via 192.168.23.3

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

R2#show ip ospf neighbor

Neighbor ID     Pri   State           Dead Time   Address         Interface

192.168.12.1      1   FULL/DR         00:00:39    192.168.12.1    Ethernet0/0

192.168.34.4      0   FULL/  -        00:00:31    10.0.0.2        Tunnel0

192.168.34.3      1   FULL/DR         00:00:31    192.168.23.3    Ethernet0/1

---------------------------------------------------------------------------------

R4#show ip ospf neighbor

Neighbor ID     Pri   State           Dead Time   Address         Interface

192.168.12.2      0   FULL/  -        00:00:39    10.0.0.1        Tunnel0

192.168.34.3      1   FULL/DR         00:00:34    192.168.34.3    Ethernet0/0

---------------------------------------------------------------------------------

R5#show ip route

Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP

D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area

N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2

E1 - OSPF external type 1, E2 - OSPF external type 2

i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2

ia - IS-IS inter area, * - candidate default, U - per-user static route

o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP

a - application route

+ - replicated route, % - next hop override

Gateway of last resort is not set

192.168.45.0/24 is variably subnetted, 2 subnets, 2 masks

C        192.168.45.0/24 is directly connected, Ethernet0/1

L        192.168.45.5/32 is directly connected, Ethernet0/1

时间： 2024-08-24 09:53:30

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