HCIP的MGRE与OSPF练习

一、实验拓扑

 二、实验需求

2、R1/4/5为全连的MGRE结构，R1/2/3为星型的拓扑结构，R1为中心站点

3、所有私有网段可以互相通讯，私有网段使用OSPF协议完成

三、实验思路

MGRE私网简图

1.先实现左边123星型结构

2.再实现右边145的直连

3.构建GMRE与OSPF的部署思路

公网底层——配置IP

公网路由——写缺省路由实现公网全通

MGRE伪广播   私网路由——OSPF   邻居关系   OSPF接口网络类型

数据库表——路由表   DR位置

四、实验步骤

一、实现左边的星型GMRE

1.配置各个路由器的接口IP与环回IP

R1

R2

<Huawei>
<Huawei>sys
Enter system view, return user view with Ctrl+Z.
[Huawei]sysname R2
[R2]int g0/0/0
[R2-GigabitEthernet0/0/0]ip address 192.168.26.1 24
Aug  5 2023 13:39:30-08:00 R2 %%01IFNET/4/LINK_STATE(l)[0]:The line protocol IP 
on the interface GigabitEthernet0/0/0 has entered the UP state. 
[R2-GigabitEthernet0/0/0]int lo0
[R2-LoopBack0]ip address 192.168.2.1 24
[R2-LoopBack0]
 

R3

<Huawei>
<Huawei>sys
Enter system view, return user view with Ctrl+Z.
[Huawei]sys    
[Huawei]sysname R3
[R3]int G0/0/0
[R3-GigabitEthernet0/0/0]ip add    
[R3-GigabitEthernet0/0/0]ip address 192.168.36.1 24
Aug  5 2023 13:40:56-08:00 R2 %%01IFNET/4/LINK_STATE(l)[0]:The line protocol IP 
on the interface GigabitEthernet0/0/0 has entered the UP state. 
[R3-GigabitEthernet0/0/0]int lo0
[R3-LoopBack0]ip address 192.168.3.1 24
[R3-LoopBack0]

R4

<Huawei>sys
Enter system view, return user view with Ctrl+Z.
[Huawei]int g0/0/0
[Huawei-GigabitEthernet0/0/0]ip address 192.168.46.1 24
Aug  5 2023 13:42:19-08:00 Huawei %%01IFNET/4/LINK_STATE(l)[0]:The line protocol
 IP on the interface GigabitEthernet0/0/0 has entered the UP state. 
[Huawei-GigabitEthernet0/0/0]int lo0
[Huawei-LoopBack0]ip address 192.168.4.1 24
[Huawei-LoopBack0]

R5

The device is running!

<Huawei>sys
Enter system view, return user view with Ctrl+Z.
[Huawei]sysname R5
[R5]int g0/0/0
[R5-GigabitEthernet0/0/0]ip address 192.168.56.1 24
Aug  5 2023 13:43:12-08:00 R5 %%01IFNET/4/LINK_STATE(l)[0]:The line protocol IP 
on the interface GigabitEthernet0/0/0 has entered the UP state. 
[R5-GigabitEthernet0/0/0]int lo0
[R5-LoopBack0]ip address 192.168.5.1 24
[R5-LoopBack0]

R6

<Huawei>sys
Enter system view, return user view with Ctrl+Z.
[Huawei]sysname R6
[R6]int G0/0/0
[R6-GigabitEthernet0/0/0]ip address 192.168.16.2 24
Aug  5 2023 13:44:58-08:00 R6 %%01IFNET/4/LINK_STATE(l)[0]:The line protocol IP 
on the interface GigabitEthernet0/0/0 has entered the UP state. 
[R6-GigabitEthernet0/0/0]int g4/0/2
[R6-GigabitEthernet4/0/2]ip address 192.168.61.2 24
Aug  5 2023 13:45:26-08:00 R6 %%01IFNET/4/LINK_STATE(l)[1]:The line protocol IP 
on the interface GigabitEthernet4/0/2 has entered the UP state. 
[R6-GigabitEthernet4/0/2]int g0/0/1
[R6-GigabitEthernet0/0/1]ip address 192.168.26.2 24
[R6-GigabitEthernet0/0/1]
Aug  5 2023 13:45:49-08:00 R6 %%01IFNET/4/LINK_STATE(l)[2]:The line protocol IP 
on the interface GigabitEthernet0/0/1 has entered the UP state. 
[R6-GigabitEthernet0/0/1]int g0/0/2
[R6-GigabitEthernet0/0/2]ip address 192.168.36.2 24
[R6-GigabitEthernet0/0/2]
Aug  5 2023 13:46:07-08:00 R6 %%01IFNET/4/LINK_STATE(l)[3]:The line protocol IP 
on the interface GigabitEthernet0/0/2 has entered the UP state. 
[R6-GigabitEthernet0/0/2]int g4/0/0
[R6-GigabitEthernet4/0/0]ip address 192.168.46.2 24
[R6-GigabitEthernet4/0/0]
Aug  5 2023 13:46:34-08:00 R6 %%01IFNET/4/LINK_STATE(l)[4]:The line protocol IP 
on the interface GigabitEthernet4/0/0 has entered the UP state. 
[R6-GigabitEthernet4/0/0]int g4/0/1
[R6-GigabitEthernet4/0/1]ip address 192.168.56.2 24
[R6-GigabitEthernet4/0/1]
Aug  5 2023 13:46:53-08:00 R6 %%01IFNET/4/LINK_STATE(l)[5]:The line protocol IP 
on the interface GigabitEthernet4/0/1 has entered the UP state. 
[R6-GigabitEthernet4/0/1]int lo0
[R6-LoopBack0]ip address 4.4.4.4 24
[R6-LoopBack0]

2.写缺省路由实现公网全通

R1

[R1]ip route-static 0.0.0.0 0 192.168.16.2

R2

[R2]ip route-static 0.0.0.0 0 192.168.26.2

R3

[R3]ip route-static 0.0.0.0 0 192.168.36.2

R4

[R4]ip route-static 0.0.0.0 0 192.168.46.2

R5

[R5]ip route-static 0.0.0.0 0 192.168.56.2

R6测试

[R6]ping 192.168.61.1
  PING 192.168.61.1: 56  data bytes, press CTRL_C to break
    Reply from 192.168.61.1: bytes=56 Sequence=1 ttl=255 time=70 ms
    Reply from 192.168.61.1: bytes=56 Sequence=2 ttl=255 time=10 ms
    Reply from 192.168.61.1: bytes=56 Sequence=3 ttl=255 time=20 ms
    Reply from 192.168.61.1: bytes=56 Sequence=4 ttl=255 time=20 ms
    Reply from 192.168.61.1: bytes=56 Sequence=5 ttl=255 time=20 ms

  --- 192.168.61.1 ping statistics ---
    5 packet(s) transmitted
    5 packet(s) received
    0.00% packet loss
    round-trip min/avg/max = 10/28/70 ms

[R6]ping 192.168.16
Error: Unknown host 192.168.16.
[R6]ping 192.168.16.1
  PING 192.168.16.1: 56  data bytes, press CTRL_C to break
    Reply from 192.168.16.1: bytes=56 Sequence=1 ttl=255 time=20 ms
    Reply from 192.168.16.1: bytes=56 Sequence=2 ttl=255 time=20 ms
    Reply from 192.168.16.1: bytes=56 Sequence=3 ttl=255 time=20 ms
    Reply from 192.168.16.1: bytes=56 Sequence=4 ttl=255 time=20 ms
    Reply from 192.168.16.1: bytes=56 Sequence=5 ttl=255 time=20 ms

  --- 192.168.16.1 ping statistics ---
    5 packet(s) transmitted
    5 packet(s) received
    0.00% packet loss
    round-trip min/avg/max = 20/20/20 ms

[R6]ping 192.168.26.1
  PING 192.168.26.1: 56  data bytes, press CTRL_C to break
    Reply from 192.168.26.1: bytes=56 Sequence=1 ttl=255 time=50 ms
    Reply from 192.168.26.1: bytes=56 Sequence=2 ttl=255 time=20 ms
    Reply from 192.168.26.1: bytes=56 Sequence=3 ttl=255 time=30 ms
    Reply from 192.168.26.1: bytes=56 Sequence=4 ttl=255 time=30 ms
    Reply from 192.168.26.1: bytes=56 Sequence=5 ttl=255 time=20 ms

  --- 192.168.26.1 ping statistics ---
    5 packet(s) transmitted
    5 packet(s) received
    0.00% packet loss
    round-trip min/avg/max = 20/30/50 ms

[R6]

3.创建Tunnel接口，构建MGRE

R1

[R1]int    
[R1]interface Tunnel 0/0/0
[R1-Tunnel0/0/0]ip address 10.1.1.1 24
[R1-Tunnel0/0/0]tunnel-protocol gre p2mp 
[R1-Tunnel0/0/0]source 192.168.16.1
Aug  5 2023 17:50:27-08:00 R1 %%01IFNET/4/LINK_STATE(l)[0]:The line protocol IP 
on the interface Tunnel0/0/0 has entered the UP state. 
[R1-Tunnel0/0/0]
[R1-Tunnel0/0/0]

R2

[R2]
[R2]interface Tunnel 0/0/0
[R2-Tunnel0/0/0]ip address 10.1.1.2 24
[R2-Tunnel0/0/0]tunnel-protocol gre p2mp 
[R2-Tunnel0/0/0]source GigabitEthernet 0/0/0
Aug  5 2023 17:52:19-08:00 R2 %%01IFNET/4/LINK_STATE(l)[0]:The line protocol IP 
on the interface Tunnel0/0/0 has entered the UP state. 
[R2-Tunnel0/0/0]
[R2-Tunnel0/0/0]nhrp entry 10.1.1.1 192.168.16.1 register 
 

R3

[R3]
[R3]interface Tunnel 0/0/0
[R3-Tunnel0/0/0]ip address 10.1.1.3 24
[R3-Tunnel0/0/0]tunnel-protocol gre p2mp 
[R3-Tunnel0/0/0]source GigabitEthernet 0/0/0
Aug  6 2023 00:27:38-08:00 R3 %%01IFNET/4/LINK_STATE(l)[2]:The line protocol IP 
on the interface Tunnel0/0/0 has entered the UP state. 
[R3-Tunnel0/0/0]    
[R3-Tunnel0/0/0]nhrp entry 10.1.1.1 192.168.16.1 register 

R2测试是否构建成功

[R2-Tunnel0/0/0]ping 10.1.1.3
  PING 10.1.1.3: 56  data bytes, press CTRL_C to break
    Reply from 10.1.1.3: bytes=56 Sequence=1 ttl=254 time=60 ms
    Reply from 10.1.1.3: bytes=56 Sequence=2 ttl=255 time=30 ms
    Reply from 10.1.1.3: bytes=56 Sequence=3 ttl=255 time=10 ms
    Reply from 10.1.1.3: bytes=56 Sequence=4 ttl=255 time=40 ms
    Reply from 10.1.1.3: bytes=56 Sequence=5 ttl=255 time=30 ms

  --- 10.1.1.3 ping statistics ---
    5 packet(s) transmitted
    5 packet(s) received
    0.00% packet loss
    round-trip min/avg/max = 10/34/60 ms

[R2-Tunnel0/0/0]display nhrp peer all
------------------------------------------------------------------------------- 
Protocol-addr   Mask  NBMA-addr       NextHop-addr    Type         Flag         
------------------------------------------------------------------------------- 
10.1.1.1        32    192.168.16.1    10.1.1.1        static       hub          
------------------------------------------------------------------------------- 
Tunnel interface: Tunnel0/0/0
Created time    : 00:02:03
Expire time     : --
------------------------------------------------------------------------------- 
Protocol-addr   Mask  NBMA-addr       NextHop-addr    Type         Flag         
------------------------------------------------------------------------------- 
10.1.1.3        32    192.168.36.1    10.1.1.3        dynamic      route tunnel 
------------------------------------------------------------------------------- 
Tunnel interface: Tunnel0/0/0
Created time    : 00:00:05
Expire time     : 01:59:55
------------------------------------------------------------------------------- 
Protocol-addr   Mask  NBMA-addr       NextHop-addr    Type         Flag         
------------------------------------------------------------------------------- 
10.1.1.2        32    192.168.26.1    10.1.1.2        dynamic      local        
------------------------------------------------------------------------------- 
Tunnel interface: Tunnel0/0/0
Created time    : 00:00:05
Expire time     : 01:59:55

[R2-Tunnel0/0/0]
 

4.使用OSPF协议宣告路由器上的环回网段

R1

[R1]interface Tunnel 0/0/0
[R1-Tunnel0/0/0]os    
[R1-Tunnel0/0/0]ospf net    
[R1-Tunnel0/0/0]ospf network-type b    
[R1-Tunnel0/0/0]ospf network-type broadcast 
Aug  5 2023 18:23:49-08:00 R1 %%01OSPF/3/NBR_CHG_DOWN(l)[0]:Neighbor event:neigh
bor state changed to Down. (ProcessId=256, NeighborAddress=2.2.2.2, NeighborEven
t=KillNbr, NeighborPreviousState=Init, NeighborCurrentState=Down) 
[R1-Tunnel0/0/0]
[R1-Tunnel0/0/0]
Aug  5 2023 18:23:49-08:00 R1 %%01OSPF/3/NBR_DOWN_REASON(l)[1]:Neighbor state le
aves full or changed to Down. (ProcessId=256, NeighborRouterId=2.2.2.2, Neighbor
AreaId=0, NeighborInterface=Tunnel0/0/0,NeighborDownImmediate reason=Neighbor Do
wn Due to Kill Neighbor, NeighborDownPrimeReason=Interface Parameter Mismatch, N
eighborChangeTime=2023-08-05 18:23:49-08:00) 
[R1-Tunnel0/0/0]
Aug  5 2023 18:23:53-08:00 R1 %%01OSPF/4/NBR_CHANGE_E(l)[2]:Neighbor changes eve
nt: neighbor status changed. (ProcessId=256, NeighborAddress=3.1.1.10, NeighborE
vent=HelloReceived, NeighborPreviousState=Down, NeighborCurrentState=Init) 
[R1-Tunnel0/0/0]
Aug  5 2023 18:23:55-08:00 R1 %%01OSPF/4/NBR_CHANGE_E(l)[3]:Neighbor changes eve
nt: neighbor status changed. (ProcessId=256, NeighborAddress=2.1.1.10, NeighborE
vent=HelloReceived, NeighborPreviousState=Down, NeighborCurrentState=Init) 
[R1-Tunnel0/0/0]
[R1-Tunnel0/0/0]q
[R1]fis    
[R1]dis    
[R1]display os    
[R1]display ospf pee    
[R1]display ospf peer 

     OSPF Process 1 with Router ID 1.1.1.1
         Neighbors 

 Area 0.0.0.0 interface 10.1.1.1(Tunnel0/0/0)'s neighbors
 Router ID: 2.2.2.2          Address: 10.1.1.2        
   State: Init  Mode:Nbr is  Master  Priority: 0
   DR: None   BDR: None   MTU: 0    
   Dead timer due in 40  sec 
   Retrans timer interval: 0 
   Neighbor is up for 00:00:00     
   Authentication Sequence: [ 0 ] 

 Router ID: 3.3.3.3          Address: 10.1.1.3        
   State: Init  Mode:Nbr is  Master  Priority: 0
   DR: None   BDR: None   MTU: 0    
   Dead timer due in 29  sec 
   Retrans timer interval: 0 
   Neighbor is up for 00:00:00     
   Authentication Sequence: [ 0 ] 

[R1]display ospf peer

     OSPF Process 1 with Router ID 1.1.1.1
         Neighbors 

 Area 0.0.0.0 interface 10.1.1.1(Tunnel0/0/0)'s neighbors
 Router ID: 2.2.2.2          Address: 10.1.1.2        
   State: Init  Mode:Nbr is  Master  Priority: 0
   DR: None   BDR: None   MTU: 0    
   Dead timer due in 33  sec 
   Retrans timer interval: 0 
   Neighbor is up for 00:00:00     
   Authentication Sequence: [ 0 ] 

 Router ID: 3.3.3.3          Address: 10.1.1.3        
   State: Init  Mode:Nbr is  Master  Priority: 0
   DR: None   BDR: None   MTU: 0    
   Dead timer due in 33  sec 
   Retrans timer interval: 0 
   Neighbor is up for 00:00:00     
   Authentication Sequence: [ 0 ] 

[R1]int    
[R1]interface t    
[R1]interface Tunnel 0/0/0
[R1-Tunnel0/0/0]dis    
[R1-Tunnel0/0/0]disp    
[R1-Tunnel0/0/0]display this
[V200R003C00]
#
interface Tunnel0/0/0
 ip address 10.1.1.1 255.255.255.0 
 tunnel-protocol gre p2mp
 source 192.168.16.1
 ospf network-type broadcast
#
return
[R1-Tunnel0/0/0]q
[R1]dis    
[R1]display ospf peer all
                      ^
Error: Wrong parameter found at '^' position.
[R1]display ospf all
                 ^
Error: Wrong parameter found at '^' position.
[R1]di    
[R1]dis    
[R1]display nhrp pr    
[R1]display nhrp pe    
[R1]display nhrp peer all
------------------------------------------------------------------------------- 
Protocol-addr   Mask  NBMA-addr       NextHop-addr    Type         Flag         
------------------------------------------------------------------------------- 
10.1.1.2        32    192.168.26.1    10.1.1.2        dynamic      route tunnel 
------------------------------------------------------------------------------- 
Tunnel interface: Tunnel0/0/0
Created time    : 00:36:27
Expire time     : 01:53:33
------------------------------------------------------------------------------- 
Protocol-addr   Mask  NBMA-addr       NextHop-addr    Type         Flag         
------------------------------------------------------------------------------- 
10.1.1.3        32    192.168.36.1    10.1.1.3        dynamic      route tunnel 
------------------------------------------------------------------------------- 
Tunnel interface: Tunnel0/0/0
Created time    : 00:35:15
Expire time     : 01:54:45

Number of nhrp peers: 2
[R1]nhrp en    
[R1]int    
[R1]interface t    
[R1]interface Tunnel 0/0/0
[R1-Tunnel0/0/0]nh    
[R1-Tunnel0/0/0]nhrp en    
[R1-Tunnel0/0/0]nhrp entry mu    
[R1-Tunnel0/0/0]nhrp entry multicast d    
[R1-Tunnel0/0/0]nhrp entry multicast dynamic 
[R1-Tunnel0/0/0]
Aug  5 2023 18:37:25-08:00 R1 %%01OSPF/4/NBR_CHANGE_E(l)[4]:Neighbor changes eve
nt: neighbor status changed. (ProcessId=256, NeighborAddress=2.1.1.10, NeighborE
vent=2WayReceived, NeighborPreviousState=Init, NeighborCurrentState=ExStart) 
[R1-Tunnel0/0/0]
Aug  5 2023 18:37:25-08:00 R1 %%01OSPF/4/NBR_CHANGE_E(l)[5]:Neighbor changes eve
nt: neighbor status changed. (ProcessId=256, NeighborAddress=2.1.1.10, NeighborE
vent=NegotiationDone, NeighborPreviousState=ExStart, NeighborCurrentState=Exchan
ge) 
[R1-Tunnel0/0/0]
Aug  5 2023 18:37:25-08:00 R1 %%01OSPF/4/NBR_CHANGE_E(l)[6]:Neighbor changes eve
nt: neighbor status changed. (ProcessId=256, NeighborAddress=3.1.1.10, NeighborE
vent=2WayReceived, NeighborPreviousState=Init, NeighborCurrentState=ExStart) 
[R1-Tunnel0/0/0]
Aug  5 2023 18:37:25-08:00 R1 %%01OSPF/4/NBR_CHANGE_E(l)[7]:Neighbor changes eve
nt: neighbor status changed. (ProcessId=256, NeighborAddress=3.1.1.10, NeighborE
vent=NegotiationDone, NeighborPreviousState=ExStart, NeighborCurrentState=Exchan
ge) 
[R1-Tunnel0/0/0]
Aug  5 2023 18:37:25-08:00 R1 %%01OSPF/4/NBR_CHANGE_E(l)[8]:Neighbor changes eve
nt: neighbor status changed. (ProcessId=256, NeighborAddress=2.1.1.10, NeighborE
vent=ExchangeDone, NeighborPreviousState=Exchange, NeighborCurrentState=Loading)
 
[R1-Tunnel0/0/0]
Aug  5 2023 18:37:25-08:00 R1 %%01OSPF/4/NBR_CHANGE_E(l)[9]:Neighbor changes eve
nt: neighbor status changed. (ProcessId=256, NeighborAddress=3.1.1.10, NeighborE
vent=ExchangeDone, NeighborPreviousState=Exchange, NeighborCurrentState=Loading)
 
[R1-Tunnel0/0/0]
Aug  5 2023 18:37:25-08:00 R1 %%01OSPF/4/NBR_CHANGE_E(l)[10]:Neighbor changes ev
ent: neighbor status changed. (ProcessId=256, NeighborAddress=2.1.1.10, Neighbor
Event=LoadingDone, NeighborPreviousState=Loading, NeighborCurrentState=Full) 
[R1-Tunnel0/0/0]
Aug  5 2023 18:37:25-08:00 R1 %%01OSPF/4/NBR_CHANGE_E(l)[11]:Neighbor changes ev
ent: neighbor status changed. (ProcessId=256, NeighborAddress=3.1.1.10, Neighbor
Event=LoadingDone, NeighborPreviousState=Loading, NeighborCurrentState=Full) 
[R1-Tunnel0/0/0]dis    
[R1-Tunnel0/0/0]disp    
[R1-Tunnel0/0/0]display ospf p    
[R1-Tunnel0/0/0]display ospf peer br    
[R1-Tunnel0/0/0]display ospf peer brief 

     OSPF Process 1 with Router ID 1.1.1.1
          Peer Statistic Information
 ----------------------------------------------------------------------------
 Area Id          Interface                        Neighbor id      State    
 0.0.0.0          Tunnel0/0/0                      2.2.2.2          Full        
 0.0.0.0          Tunnel0/0/0                      3.3.3.3          Full        
 ----------------------------------------------------------------------------
[R1-Tunnel0/0/0]display ospf peer 

     OSPF Process 1 with Router ID 1.1.1.1
         Neighbors 

 Area 0.0.0.0 interface 10.1.1.1(Tunnel0/0/0)'s neighbors
 Router ID: 2.2.2.2          Address: 10.1.1.2        
   State: Full  Mode:Nbr is  Master  Priority: 0
   DR: 10.1.1.1  BDR: None   MTU: 0    
   Dead timer due in 30  sec 
   Retrans timer interval: 5 
   Neighbor is up for 00:02:11     
   Authentication Sequence: [ 0 ] 

 Router ID: 3.3.3.3          Address: 10.1.1.3        
   State: Full  Mode:Nbr is  Master  Priority: 0
   DR: 10.1.1.1  BDR: None   MTU: 0    
   Dead timer due in 30  sec 
   Retrans timer interval: 5 
   Neighbor is up for 00:02:11     
   Authentication Sequence: [ 0 ] 

[R1-Tunnel0/0/0]

R2

<R2>sys
Enter system view, return user view with Ctrl+Z.
[R2]os    
[R2]ospf 1 rou    
[R2]ospf 1 router-id r    
[R2]ospf 1 router-id ro    
[R2]ospf 1 router-id 2.2.2.2
[R2-ospf-1]are    
[R2-ospf-1]area 0
[R2-ospf-1-area-0.0.0.0]net    
[R2-ospf-1-area-0.0.0.0]network 10.1.1.2 0.0.0.0
[R2-ospf-1-area-0.0.0.0]net    
[R2-ospf-1-area-0.0.0.0]network 192.168.2.1 0.0.0.0
[R2-ospf-1-area-0.0.0.0]
[R2-ospf-1-area-0.0.0.0]q
[R2-ospf-1]q
[R2]
[R2]int    
[R2]interface t    
[R2]interface Tunnel 0/0/0
[R2-Tunnel0/0/0]
[R2-Tunnel0/0/0]ospf    
[R2-Tunnel0/0/0]ospf net    
[R2-Tunnel0/0/0]ospf network-type br    
[R2-Tunnel0/0/0]ospf network-type broadcast 
[R2-Tunnel0/0/0]
[R2-Tunnel0/0/0]os    
[R2-Tunnel0/0/0]ospf dr    
[R2-Tunnel0/0/0]ospf dr-priority  0
[R2-Tunnel0/0/0]dis    
[R2-Tunnel0/0/0]disp    
[R2-Tunnel0/0/0]display this
[V200R003C00]
#
interface Tunnel0/0/0
 ip address 10.1.1.2 255.255.255.0 
 tunnel-protocol gre p2mp
 source GigabitEthernet0/0/0
 ospf network-type broadcast
 ospf dr-priority 0
 nhrp entry 10.1.1.1 192.168.16.1 register
#
return
[R2-Tunnel0/0/0]

  Please check whether system data has been changed, and save data in time

  Configuration console time out, please press any key to log on
 

R3

<R3>sys
Enter system view, return user view with Ctrl+Z.
[R3]int    
[R3]interface t    
[R3]interface Tunnel 0/0/0
[R3-Tunnel0/0/0]os    
[R3-Tunnel0/0/0]ospfnet    
[R3-Tunnel0/0/0]ospf net    
[R3-Tunnel0/0/0]ospf network-type br    
[R3-Tunnel0/0/0]ospf network-type broadcast 
[R3-Tunnel0/0/0]os    
[R3-Tunnel0/0/0]ospf dr    
[R3-Tunnel0/0/0]ospf dr-priority 0
[R3-Tunnel0/0/0]q
[R3]dis    
[R3]display os    
[R3]display ospf pee    
[R3]display ospf peer br    
[R3]display ospf peer brief 

     OSPF Process 1 with Router ID 3.3.3.3
          Peer Statistic Information
 ----------------------------------------------------------------------------
 Area Id          Interface                        Neighbor id      State    
 ----------------------------------------------------------------------------
[R3]int    
[R3]interface t    
[R3]interface Tunnel 0/0/0
[R3-Tunnel0/0/0]disp    
[R3-Tunnel0/0/0]display this
[V200R003C00]
#
interface Tunnel0/0/0
 ip address 10.1.1.3 255.255.255.0 
 tunnel-protocol gre p2mp
 source GigabitEthernet0/0/0
 ospf network-type broadcast
 ospf dr-priority 0
 nhrp entry 10.1.1.1 192.168.16.1 register
#
return
[R3-Tunnel0/0/0]
Aug  6 2023 01:07:34-08:00 R3 %%01OSPF/4/NBR_CHANGE_E(l)[0]:Neighbor changes eve
nt: neighbor status changed. (ProcessId=256, NeighborAddress=1.1.1.10, NeighborE
vent=HelloReceived, NeighborPreviousState=Down, NeighborCurrentState=Init) 
[R3-Tunnel0/0/0]
Aug  6 2023 01:07:34-08:00 R3 %%01OSPF/4/NBR_CHANGE_E(l)[1]:Neighbor changes eve
nt: neighbor status changed. (ProcessId=256, NeighborAddress=1.1.1.10, NeighborE
vent=2WayReceived, NeighborPreviousState=Init, NeighborCurrentState=2Way) 
[R3-Tunnel0/0/0]
Aug  6 2023 01:07:34-08:00 R3 %%01OSPF/4/NBR_CHANGE_E(l)[2]:Neighbor changes eve
nt: neighbor status changed. (ProcessId=256, NeighborAddress=1.1.1.10, NeighborE
vent=AdjOk?, NeighborPreviousState=2Way, NeighborCurrentState=ExStart) 
[R3-Tunnel0/0/0]
Aug  6 2023 01:07:35-08:00 R3 %%01OSPF/4/NBR_CHANGE_E(l)[3]:Neighbor changes eve
nt: neighbor status changed. (ProcessId=256, NeighborAddress=1.1.1.10, NeighborE
vent=NegotiationDone, NeighborPreviousState=ExStart, NeighborCurrentState=Exchan
ge) 
[R3-Tunnel0/0/0]
Aug  6 2023 01:07:35-08:00 R3 %%01OSPF/4/NBR_CHANGE_E(l)[4]:Neighbor changes eve
nt: neighbor status changed. (ProcessId=256, NeighborAddress=1.1.1.10, NeighborE
vent=ExchangeDone, NeighborPreviousState=Exchange, NeighborCurrentState=Loading)
 
[R3-Tunnel0/0/0]
Aug  6 2023 01:07:35-08:00 R3 %%01OSPF/4/NBR_CHANGE_E(l)[5]:Neighbor changes eve
nt: neighbor status changed. (ProcessId=256, NeighborAddress=1.1.1.10, NeighborE
vent=LoadingDone, NeighborPreviousState=Loading, NeighborCurrentState=Full) 
[R3-Tunnel0/0/0]

  Please check whether system data has been changed, and save data in time

  Configuration console time out, please press any key to log on

<R3>sys
Enter system view, return user view with Ctrl+Z.
[R3]display ospf peer brief 

     OSPF Process 1 with Router ID 3.3.3.3
          Peer Statistic Information
 ----------------------------------------------------------------------------
 Area Id          Interface                        Neighbor id      State    
 0.0.0.0          Tunnel0/0/0                      1.1.1.1          Full        
 ----------------------------------------------------------------------------
[R3]
 

二、实现右边145的GMRE的构建

R1

[R1-Tunnel0/0/1]nhrp entry multicast d    
[R1-Tunnel0/0/1]nhrp entry multicast dynamic 
[R1-Tunnel0/0/1]q
[R1]ping 10.1.2.3
  PING 10.1.2.3: 56  data bytes, press CTRL_C to break
    Reply from 10.1.2.3: bytes=56 Sequence=1 ttl=255 time=30 ms
    Reply from 10.1.2.3: bytes=56 Sequence=2 ttl=255 time=30 ms
    Reply from 10.1.2.3: bytes=56 Sequence=3 ttl=255 time=40 ms
    Reply from 10.1.2.3: bytes=56 Sequence=4 ttl=255 time=30 ms
    Reply from 10.1.2.3: bytes=56 Sequence=5 ttl=255 time=30 ms

  --- 10.1.2.3 ping statistics ---
    5 packet(s) transmitted
    5 packet(s) received
    0.00% packet loss
    round-trip min/avg/max = 30/32/40 ms

[R1]os    
[R1]ospf 1
[R1-ospf-1]sr    
[R1-ospf-1]ar    
[R1-ospf-1]area 0
[R1-ospf-1-area-0.0.0.0]net    
[R1-ospf-1-area-0.0.0.0]network 10.1.2.1 0.0.0.0
[R1-ospf-1-area-0.0.0.0]
Aug  5 2023 19:01:57-08:00 R1 %%01OSPF/4/NBR_CHANGE_E(l)[0]:Neighbor changes eve
nt: neighbor status changed. (ProcessId=256, NeighborAddress=2.2.1.10, NeighborE
vent=HelloReceived, NeighborPreviousState=Down, NeighborCurrentState=Init) 
[R1-ospf-1-area-0.0.0.0]
Aug  5 2023 19:01:57-08:00 R1 %%01OSPF/4/NBR_CHANGE_E(l)[1]:Neighbor changes eve
nt: neighbor status changed. (ProcessId=256, NeighborAddress=2.2.1.10, NeighborE
vent=2WayReceived, NeighborPreviousState=Init, NeighborCurrentState=ExStart) 
[R1-ospf-1-area-0.0.0.0]
Aug  5 2023 19:01:57-08:00 R1 %%01OSPF/4/NBR_CHANGE_E(l)[2]:Neighbor changes eve
nt: neighbor status changed. (ProcessId=256, NeighborAddress=2.2.1.10, NeighborE
vent=NegotiationDone, NeighborPreviousState=ExStart, NeighborCurrentState=Exchan
ge) 
[R1-ospf-1-area-0.0.0.0]
Aug  5 2023 19:01:58-08:00 R1 %%01OSPF/4/NBR_CHANGE_E(l)[3]:Neighbor changes eve
nt: neighbor status changed. (ProcessId=256, NeighborAddress=2.2.1.10, NeighborE
vent=ExchangeDone, NeighborPreviousState=Exchange, NeighborCurrentState=Loading)
 
[R1-ospf-1-area-0.0.0.0]
Aug  5 2023 19:01:58-08:00 R1 %%01OSPF/4/NBR_CHANGE_E(l)[4]:Neighbor changes eve
nt: neighbor status changed. (ProcessId=256, NeighborAddress=2.2.1.10, NeighborE
vent=LoadingDone, NeighborPreviousState=Loading, NeighborCurrentState=Full) 
[R1-ospf-1-area-0.0.0.0]q
[R1-ospf-1]dis    
[R1-ospf-1]display os    
[R1-ospf-1]display ospf pe    
[R1-ospf-1]display ospf peer nr    
[R1-ospf-1]display ospf peer br    
[R1-ospf-1]display ospf peer brief 

     OSPF Process 1 with Router ID 1.1.1.1
          Peer Statistic Information
 ----------------------------------------------------------------------------
 Area Id          Interface                        Neighbor id      State    
 0.0.0.0          Tunnel0/0/0                      2.2.2.2          Full        
 0.0.0.0          Tunnel0/0/0                      3.3.3.3          Full        
 0.0.0.0          Tunnel0/0/1                      4.4.4.4          Full        
 ----------------------------------------------------------------------------
[R1-ospf-1]os    
[R1-ospf-1]q
[R1]int    
[R1]interface t    
[R1]interface Tunnel 0/0/1
[R1-Tunnel0/0/1]os    
[R1-Tunnel0/0/1]ospfnet    
[R1-Tunnel0/0/1]ospf ne    
[R1-Tunnel0/0/1]ospf network-type br    
[R1-Tunnel0/0/1]ospf network-type broadcast 
Aug  5 2023 19:07:42-08:00 R1 %%01OSPF/3/NBR_CHG_DOWN(l)[5]:Neighbor event:neigh
bor state changed to Down. (ProcessId=256, NeighborAddress=4.4.4.4, NeighborEven
t=KillNbr, NeighborPreviousState=Full, NeighborCurrentState=Down) 
[R1-Tunnel0/0/1]
[R1-Tunnel0/0/1]
Aug  5 2023 19:07:42-08:00 R1 %%01OSPF/3/NBR_DOWN_REASON(l)[6]:Neighbor state le
aves full or changed to Down. (ProcessId=256, NeighborRouterId=4.4.4.4, Neighbor
AreaId=0, NeighborInterface=Tunnel0/0/1,NeighborDownImmediate reason=Neighbor Do
wn Due to Kill Neighbor, NeighborDownPrimeReason=Interface Parameter Mismatch, N
eighborChangeTime=2023-08-05 19:07:42-08:00) 
[R1-Tunnel0/0/1]
Aug  5 2023 19:07:45-08:00 R1 %%01OSPF/4/NBR_CHANGE_E(l)[7]:Neighbor changes eve
nt: neighbor status changed. (ProcessId=256, NeighborAddress=2.2.1.10, NeighborE
vent=HelloReceived, NeighborPreviousState=Down, NeighborCurrentState=Init) 
[R1-Tunnel0/0/1]
Aug  5 2023 19:07:45-08:00 R1 %%01OSPF/4/NBR_CHANGE_E(l)[8]:Neighbor changes eve
nt: neighbor status changed. (ProcessId=256, NeighborAddress=2.2.1.10, NeighborE
vent=2WayReceived, NeighborPreviousState=Init, NeighborCurrentState=2Way) 
[R1-Tunnel0/0/1]
Aug  5 2023 19:07:45-08:00 R1 %%01OSPF/4/NBR_CHANGE_E(l)[9]:Neighbor changes eve
nt: neighbor status changed. (ProcessId=256, NeighborAddress=2.2.1.10, NeighborE
vent=1-Way, NeighborPreviousState=2Way, NeighborCurrentState=Init) 
[R1-Tunnel0/0/1]
Aug  5 2023 19:07:48-08:00 R1 %%01OSPF/4/NBR_CHANGE_E(l)[10]:Neighbor changes ev
ent: neighbor status changed. (ProcessId=256, NeighborAddress=3.2.1.10, Neighbor
Event=HelloReceived, NeighborPreviousState=Down, NeighborCurrentState=Init) 
[R1-Tunnel0/0/1]
Aug  5 2023 19:07:56-08:00 R1 %%01OSPF/4/NBR_CHANGE_E(l)[11]:Neighbor changes ev
ent: neighbor status changed. (ProcessId=256, NeighborAddress=2.2.1.10, Neighbor
Event=2WayReceived, NeighborPreviousState=Init, NeighborCurrentState=2Way) 
[R1-Tunnel0/0/1]
Aug  5 2023 19:07:58-08:00 R1 %%01OSPF/4/NBR_CHANGE_E(l)[12]:Neighbor changes ev
ent: neighbor status changed. (ProcessId=256, NeighborAddress=3.2.1.10, Neighbor
Event=2WayReceived, NeighborPreviousState=Init, NeighborCurrentState=2Way) 
[R1-Tunnel0/0/1]dis    
[R1-Tunnel0/0/1]disp    
[R1-Tunnel0/0/1]display os    
[R1-Tunnel0/0/1]display ospf pe
Aug  5 2023 19:08:25-08:00 R1 %%01OSPF/4/NBR_CHANGE_E(l)[13]:Neighbor changes ev
ent: neighbor status changed. (ProcessId=256, NeighborAddress=2.2.1.10, Neighbor
Event=AdjOk?, NeighborPreviousState=2Way, NeighborCurrentState=2Way) 
[R1-Tunnel0/0/1]display ospf pe
Aug  5 2023 19:08:25-08:00 R1 %%01OSPF/4/NBR_CHANGE_E(l)[14]:Neighbor changes ev
ent: neighbor status changed. (ProcessId=256, NeighborAddress=3.2.1.10, Neighbor
Event=AdjOk?, NeighborPreviousState=2Way, NeighborCurrentState=ExStart) 
[R1-Tunnel0/0/1]display ospf pe    
[R1-Tunnel0/0/1]display ospf peer br    
[R1-Tunnel0/0/1]display ospf peer brief 
Aug  5 2023 19:08:30-08:00 R1 %%01OSPF/4/NBR_CHANGE_E(l)[15]:Neighbor changes ev
ent: neighbor status changed. (ProcessId=256, NeighborAddress=3.2.1.10, Neighbor
Event=NegotiationDone, NeighborPreviousState=ExStart, NeighborCurrentState=Excha
nge) 
[R1-Tunnel0/0/1]display ospf peer brief 
Aug  5 2023 19:08:30-08:00 R1 %%01OSPF/4/NBR_CHANGE_E(l)[16]:Neighbor changes ev
ent: neighbor status changed. (ProcessId=256, NeighborAddress=2.2.1.10, Neighbor
Event=AdjOk?, NeighborPreviousState=2Way, NeighborCurrentState=ExStart) 
[R1-Tunnel0/0/1]display ospf peer brief 
Aug  5 2023 19:08:30-08:00 R1 %%01OSPF/4/NBR_CHANGE_E(l)[17]:Neighbor changes ev
ent: neighbor status changed. (ProcessId=256, NeighborAddress=2.2.1.10, Neighbor
Event=NegotiationDone, NeighborPreviousState=ExStart, NeighborCurrentState=Excha
nge) 
[R1-Tunnel0/0/1]display ospf peer brief 
Aug  5 2023 19:08:30-08:00 R1 %%01OSPF/4/NBR_CHANGE_E(l)[18]:Neighbor changes ev
ent: neighbor status changed. (ProcessId=256, NeighborAddress=3.2.1.10, Neighbor
Event=ExchangeDone, NeighborPreviousState=Exchange, NeighborCurrentState=Loading
) 
[R1-Tunnel0/0/1]display ospf peer brief 
Aug  5 2023 19:08:30-08:00 R1 %%01OSPF/4/NBR_CHANGE_E(l)[19]:Neighbor changes ev
ent: neighbor status changed. (ProcessId=256, NeighborAddress=2.2.1.10, Neighbor
Event=ExchangeDone, NeighborPreviousState=Exchange, NeighborCurrentState=Loading
) 
[R1-Tunnel0/0/1]display ospf peer brief 
Aug  5 2023 19:08:30-08:00 R1 %%01OSPF/4/NBR_CHANGE_E(l)[20]:Neighbor changes ev
ent: neighbor status changed. (ProcessId=256, NeighborAddress=2.2.1.10, Neighbor
Event=LoadingDone, NeighborPreviousState=Loading, NeighborCurrentState=Full) 
[R1-Tunnel0/0/1]display ospf peer brief 
Aug  5 2023 19:08:30-08:00 R1 %%01OSPF/4/NBR_CHANGE_E(l)[21]:Neighbor changes ev
ent: neighbor status changed. (ProcessId=256, NeighborAddress=3.2.1.10, Neighbor
Event=LoadingDone, NeighborPreviousState=Loading, NeighborCurrentState=Full) 
[R1-Tunnel0/0/1]display ospf peer brief 

     OSPF Process 1 with Router ID 1.1.1.1
          Peer Statistic Information
 ----------------------------------------------------------------------------
 Area Id          Interface                        Neighbor id      State    
 0.0.0.0          Tunnel0/0/0                      2.2.2.2          Full        
 0.0.0.0          Tunnel0/0/0                      3.3.3.3          Full        
 0.0.0.0          Tunnel0/0/1                      4.4.4.4          Full        
 0.0.0.0          Tunnel0/0/1                      5.5.5.5          Full        
 ----------------------------------------------------------------------------
[R1-Tunnel0/0/1]q
[R1]dis    
[R1]display osp    
[R1]display ospf pe    
[R1]display ospf peer 

     OSPF Process 1 with Router ID 1.1.1.1
         Neighbors 

 Area 0.0.0.0 interface 10.1.1.1(Tunnel0/0/0)'s neighbors
 Router ID: 2.2.2.2          Address: 10.1.1.2        
   State: Full  Mode:Nbr is  Master  Priority: 0
   DR: 10.1.1.1  BDR: None   MTU: 0    
   Dead timer due in 39  sec 
   Retrans timer interval: 5 
   Neighbor is up for 00:31:31     
   Authentication Sequence: [ 0 ] 

 Router ID: 3.3.3.3          Address: 10.1.1.3        
   State: Full  Mode:Nbr is  Master  Priority: 0
   DR: 10.1.1.1  BDR: None   MTU: 0    
   Dead timer due in 29  sec 
   Retrans timer interval: 5 
   Neighbor is up for 00:31:31     
   Authentication Sequence: [ 0 ] 

         Neighbors 

 Area 0.0.0.0 interface 10.1.2.1(Tunnel0/0/1)'s neighbors
 Router ID: 4.4.4.4          Address: 10.1.2.2        
   State: Full  Mode:Nbr is  Master  Priority: 1
   DR: 10.1.2.3  BDR: 10.1.2.2  MTU: 0    
   Dead timer due in 31  sec 
   Retrans timer interval: 5 
   Neighbor is up for 00:00:25     
   Authentication Sequence: [ 0 ] 

  ---- More ----

R4

[R4]int    
[R4]interface t    
[R4]interface Tunnel 0/0/0
[R4-Tunnel0/0/0]ip    
[R4-Tunnel0/0/0]ip add    
[R4-Tunnel0/0/0]ip address 10.1.2.2 24
[R4-Tunnel0/0/0]tu    
[R4-Tunnel0/0/0]tunnel-protocol g    
[R4-Tunnel0/0/0]tunnel-protocol gre p    
[R4-Tunnel0/0/0]tunnel-protocol gre p2mp 
[R4-Tunnel0/0/0]sou    
[R4-Tunnel0/0/0]source 192.168.46.1
Aug  5 2023 18:49:00-08:00 R4 %%01IFNET/4/LINK_STATE(l)[0]:The line protocol IP 
on the interface Tunnel0/0/0 has entered the UP state. 
[R4-Tunnel0/0/0]
[R4-Tunnel0/0/0]nhr    
[R4-Tunnel0/0/0]nhrp e    
[R4-Tunnel0/0/0]nhrp entry 10.1.2.1 192.168.61.1 r    
[R4-Tunnel0/0/0]nhrp entry 10.1.2.1 192.168.61.1 register 
[R4-Tunnel0/0/0]nhrp entry 10.1.2.3 192.168.56.1 register
[R4-Tunnel0/0/0]

  Please check whether system data has been changed, and save data in time

  Configuration console time out, please press any key to log on

<R4>sys
Enter system view, return user view with Ctrl+Z.
[R4]int    
[R4]interface t    
[R4]interface Tunnel 0/0/0
[R4-Tunnel0/0/0]disp    
[R4-Tunnel0/0/0]display this
[V200R003C00]
#
interface Tunnel0/0/0
 ip address 10.1.2.2 255.255.255.0 
 tunnel-protocol gre p2mp
 source 192.168.46.1
 nhrp entry 10.1.2.1 192.168.61.1 register
 nhrp entry 10.1.2.3 192.168.56.1 register
#
return
[R4-Tunnel0/0/0]ops    
[R4-Tunnel0/0/0]ospf 1 ro    
[R4-Tunnel0/0/0]ospf 1 rou    
[R4-Tunnel0/0/0]    
[R4-Tunnel0/0/0]q
[R4]ospf 1 ro    
[R4]ospf 1 router-id 4.4.4.4
[R4-ospf-1]area 0
[R4-ospf-1-area-0.0.0.0]net    
[R4-ospf-1-area-0.0.0.0]network 10.1.2.2 0.0.0.0
[R4-ospf-1-area-0.0.0.0]
Aug  5 2023 19:01:57-08:00 R4 %%01OSPF/4/NBR_CHANGE_E(l)[0]:Neighbor changes eve
nt: neighbor status changed. (ProcessId=256, NeighborAddress=1.2.1.10, NeighborE
vent=HelloReceived, NeighborPreviousState=Down, NeighborCurrentState=Init) 
[R4-ospf-1-area-0.0.0.0]
Aug  5 2023 19:01:57-08:00 R4 %%01OSPF/4/NBR_CHANGE_E(l)[1]:Neighbor changes eve
nt: neighbor status changed. (ProcessId=256, NeighborAddress=1.2.1.10, NeighborE
vent=2WayReceived, NeighborPreviousState=Init, NeighborCurrentState=ExStart) 
[R4-ospf-1-area-0.0.0.0]
Aug  5 2023 19:01:57-08:00 R4 %%01OSPF/4/NBR_CHANGE_E(l)[2]:Neighbor changes eve
nt: neighbor status changed. (ProcessId=256, NeighborAddress=1.2.1.10, NeighborE
vent=NegotiationDone, NeighborPreviousState=ExStart, NeighborCurrentState=Exchan
ge) 
[R4-ospf-1-area-0.0.0.0]
Aug  5 2023 19:01:57-08:00 R4 %%01OSPF/4/NBR_CHANGE_E(l)[3]:Neighbor changes eve
nt: neighbor status changed. (ProcessId=256, NeighborAddress=1.2.1.10, NeighborE
vent=ExchangeDone, NeighborPreviousState=Exchange, NeighborCurrentState=Loading)
 
[R4-ospf-1-area-0.0.0.0]
Aug  5 2023 19:01:57-08:00 R4 %%01OSPF/4/NBR_CHANGE_E(l)[4]:Neighbor changes eve
nt: neighbor status changed. (ProcessId=256, NeighborAddress=1.2.1.10, NeighborE
vent=LoadingDone, NeighborPreviousState=Loading, NeighborCurrentState=Full) 
[R4-ospf-1-area-0.0.0.0]net    
[R4-ospf-1-area-0.0.0.0]network 192.168.4.1 0.0.0.0
[R4-ospf-1-area-0.0.0.0]q
[R4-ospf-1]dis    
[R4-ospf-1]display os    
[R4-ospf-1]display ospf pe    
[R4-ospf-1]display ospf peer br    
[R4-ospf-1]display ospf peer brief 

     OSPF Process 1 with Router ID 4.4.4.4
          Peer Statistic Information
 ----------------------------------------------------------------------------
 Area Id          Interface                        Neighbor id      State    
 0.0.0.0          Tunnel0/0/0                      1.1.1.1          Full        
 ----------------------------------------------------------------------------
[R4-ospf-1]q
[R4]int    
[R4]interface t    
[R4]interface Tunnel 0/0/0
[R4-Tunnel0/0/0]ospf net    
[R4-Tunnel0/0/0]ospf network-type br    
[R4-Tunnel0/0/0]ospf network-type broadcast 
Aug  5 2023 19:07:42-08:00 R4 %%01OSPF/3/NBR_DOWN_REASON(l)[5]:Neighbor state le
aves full or changed to Down. (ProcessId=256, NeighborRouterId=1.1.1.1, Neighbor
AreaId=0, NeighborInterface=Tunnel0/0/0,NeighborDownImmediate reason=Neighbor Do
wn Due to 1-Wayhello Received, NeighborDownPrimeReason=1-Wayhello Received, Neig
hborChangeTime=2023-08-05 19:07:42-08:00) 
[R4-Tunnel0/0/0]ospf network-type broadcast 
Aug  5 2023 19:07:42-08:00 R4 %%01OSPF/4/NBR_CHANGE_E(l)[6]:Neighbor changes eve
nt: neighbor status changed. (ProcessId=256, NeighborAddress=1.2.1.10, NeighborE
vent=1-Way, NeighborPreviousState=Full, NeighborCurrentState=Init) 
[R4-Tunnel0/0/0]ospf network-type broadcast 
Aug  5 2023 19:07:45-08:00 R4 %%01OSPF/3/NBR_CHG_DOWN(l)[7]:Neighbor event:neigh
bor state changed to Down. (ProcessId=256, NeighborAddress=1.1.1.1, NeighborEven
t=KillNbr, NeighborPreviousState=Init, NeighborCurrentState=Down) 
[R4-Tunnel0/0/0]
[R4-Tunnel0/0/0]
Aug  5 2023 19:07:45-08:00 R4 %%01OSPF/3/NBR_DOWN_REASON(l)[8]:Neighbor state le
aves full or changed to Down. (ProcessId=256, NeighborRouterId=1.1.1.1, Neighbor
AreaId=0, NeighborInterface=Tunnel0/0/0,NeighborDownImmediate reason=Neighbor Do
wn Due to Kill Neighbor, NeighborDownPrimeReason=Interface Parameter Mismatch, N
eighborChangeTime=2023-08-05 19:07:45-08:00) 
[R4-Tunnel0/0/0]
Aug  5 2023 19:07:48-08:00 R4 %%01OSPF/4/NBR_CHANGE_E(l)[9]:Neighbor changes eve
nt: neighbor status changed. (ProcessId=256, NeighborAddress=3.2.1.10, NeighborE
vent=HelloReceived, NeighborPreviousState=Down, NeighborCurrentState=Init) 
[R4-Tunnel0/0/0]
Aug  5 2023 19:07:52-08:00 R4 %%01OSPF/4/NBR_CHANGE_E(l)[10]:Neighbor changes ev
ent: neighbor status changed. (ProcessId=256, NeighborAddress=1.2.1.10, Neighbor
Event=HelloReceived, NeighborPreviousState=Down, NeighborCurrentState=Init) 
[R4-Tunnel0/0/0]
Aug  5 2023 19:07:52-08:00 R4 %%01OSPF/4/NBR_CHANGE_E(l)[11]:Neighbor changes ev
ent: neighbor status changed. (ProcessId=256, NeighborAddress=1.2.1.10, Neighbor
Event=2WayReceived, NeighborPreviousState=Init, NeighborCurrentState=2Way) 
[R4-Tunnel0/0/0]
Aug  5 2023 19:07:58-08:00 R4 %%01OSPF/4/NBR_CHANGE_E(l)[12]:Neighbor changes ev
ent: neighbor status changed. (ProcessId=256, NeighborAddress=3.2.1.10, Neighbor
Event=2WayReceived, NeighborPreviousState=Init, NeighborCurrentState=2Way) 
[R4-Tunnel0/0/0]
Aug  5 2023 19:08:29-08:00 R4 %%01OSPF/4/NBR_CHANGE_E(l)[13]:Neighbor changes ev
ent: neighbor status changed. (ProcessId=256, NeighborAddress=1.2.1.10, Neighbor
Event=AdjOk?, NeighborPreviousState=2Way, NeighborCurrentState=2Way) 
[R4-Tunnel0/0/0]
Aug  5 2023 19:08:29-08:00 R4 %%01OSPF/4/NBR_CHANGE_E(l)[14]:Neighbor changes ev
ent: neighbor status changed. (ProcessId=256, NeighborAddress=3.2.1.10, Neighbor
Event=AdjOk?, NeighborPreviousState=2Way, NeighborCurrentState=ExStart) 
[R4-Tunnel0/0/0]
Aug  5 2023 19:08:30-08:00 R4 %%01OSPF/4/NBR_CHANGE_E(l)[15]:Neighbor changes ev
ent: neighbor status changed. (ProcessId=256, NeighborAddress=3.2.1.10, Neighbor
Event=NegotiationDone, NeighborPreviousState=ExStart, NeighborCurrentState=Excha
nge) 
[R4-Tunnel0/0/0]
Aug  5 2023 19:08:30-08:00 R4 %%01OSPF/4/NBR_CHANGE_E(l)[16]:Neighbor changes ev
ent: neighbor status changed. (ProcessId=256, NeighborAddress=1.2.1.10, Neighbor
Event=AdjOk?, NeighborPreviousState=2Way, NeighborCurrentState=ExStart) 
[R4-Tunnel0/0/0]
Aug  5 2023 19:08:30-08:00 R4 %%01OSPF/4/NBR_CHANGE_E(l)[17]:Neighbor changes ev
ent: neighbor status changed. (ProcessId=256, NeighborAddress=3.2.1.10, Neighbor
Event=ExchangeDone, NeighborPreviousState=Exchange, NeighborCurrentState=Loading
) 
[R4-Tunnel0/0/0]
Aug  5 2023 19:08:30-08:00 R4 %%01OSPF/4/NBR_CHANGE_E(l)[18]:Neighbor changes ev
ent: neighbor status changed. (ProcessId=256, NeighborAddress=1.2.1.10, Neighbor
Event=NegotiationDone, NeighborPreviousState=ExStart, NeighborCurrentState=Excha
nge) 
[R4-Tunnel0/0/0]
Aug  5 2023 19:08:30-08:00 R4 %%01OSPF/4/NBR_CHANGE_E(l)[19]:Neighbor changes ev
ent: neighbor status changed. (ProcessId=256, NeighborAddress=3.2.1.10, Neighbor
Event=LoadingDone, NeighborPreviousState=Loading, NeighborCurrentState=Full) 
[R4-Tunnel0/0/0]
Aug  5 2023 19:08:30-08:00 R4 %%01OSPF/4/NBR_CHANGE_E(l)[20]:Neighbor changes ev
ent: neighbor status changed. (ProcessId=256, NeighborAddress=1.2.1.10, Neighbor
Event=ExchangeDone, NeighborPreviousState=Exchange, NeighborCurrentState=Loading
) 
[R4-Tunnel0/0/0]
Aug  5 2023 19:08:30-08:00 R4 %%01OSPF/4/NBR_CHANGE_E(l)[21]:Neighbor changes ev
ent: neighbor status changed. (ProcessId=256, NeighborAddress=1.2.1.10, Neighbor
Event=LoadingDone, NeighborPreviousState=Loading, NeighborCurrentState=Full) 
[R4-Tunnel0/0/0]

R5

[R5]int    
[R5]interface t    
[R5]interface Tunnel 0/0/0
[R5-Tunnel0/0/0]ip    
[R5-Tunnel0/0/0]ip add    
[R5-Tunnel0/0/0]ip address 10.1.2.3 24
[R5-Tunnel0/0/0]tu    
[R5-Tunnel0/0/0]tunnel-protocol g    
[R5-Tunnel0/0/0]tunnel-protocol gre p    
[R5-Tunnel0/0/0]tunnel-protocol gre p2mp 
[R5-Tunnel0/0/0]so    
[R5-Tunnel0/0/0]source 192.168.56.1
Aug  5 2023 18:51:18-08:00 R5 %%01IFNET/4/LINK_STATE(l)[0]:The line protocol IP 
on the interface Tunnel0/0/0 has entered the UP state. 
[R5-Tunnel0/0/0]
[R5-Tunnel0/0/0]q
[R5]dis    
[R5]display nhrp    
[R5]display nhrp pe    
[R5]display nhrp peer all

Number of nhrp peers: 0
[R5]display nhrp peer all

Number of nhrp peers: 0
[R5]display nhrp peer all

Number of nhrp peers: 0
[R5]int    
[R5]interface t    
[R5]interface Tunnel 0/0/0
[R5-Tunnel0/0/0]nhrp en    
[R5-Tunnel0/0/0]nhrp entry 10.1.2.1 192.168.61.1 r    
[R5-Tunnel0/0/0]nhrp entry 10.1.2.1 192.168.61.1 register 
[R5-Tunnel0/0/0]q
[R5]dis    
[R5]display nhrp pe    
[R5]display nhrp peer all
------------------------------------------------------------------------------- 
Protocol-addr   Mask  NBMA-addr       NextHop-addr    Type         Flag         
------------------------------------------------------------------------------- 
10.1.2.1        32    192.168.61.1    10.1.2.1        static       hub          
------------------------------------------------------------------------------- 
Tunnel interface: Tunnel0/0/0
Created time    : 00:00:45
Expire time     : --
------------------------------------------------------------------------------- 
Protocol-addr   Mask  NBMA-addr       NextHop-addr    Type         Flag         
------------------------------------------------------------------------------- 
10.1.2.2        32    192.168.46.1    10.1.2.2        dynamic      route tunnel 
------------------------------------------------------------------------------- 
Tunnel interface: Tunnel0/0/0
Created time    : 00:01:40
Expire time     : 01:58:20

Number of nhrp peers: 2
[R5]int    
[R5]interface t    
[R5]interface Tunnel 0/0/0
[R5-Tunnel0/0/0]nhrp    
[R5-Tunnel0/0/0]nhrp en    
[R5-Tunnel0/0/0]nhrp entry mu    
[R5-Tunnel0/0/0]nhrp entry multicast dy    
[R5-Tunnel0/0/0]nhrp entry multicast dynamic 
[R5-Tunnel0/0/0]
[R5-Tunnel0/0/0]q
[R5]ping 10.1.2.2
  PING 10.1.2.2: 56  data bytes, press CTRL_C to break
    Reply from 10.1.2.2: bytes=56 Sequence=1 ttl=255 time=40 ms
    Reply from 10.1.2.2: bytes=56 Sequence=2 ttl=255 time=20 ms
    Reply from 10.1.2.2: bytes=56 Sequence=3 ttl=255 time=20 ms
    Reply from 10.1.2.2: bytes=56 Sequence=4 ttl=255 time=20 ms
    Reply from 10.1.2.2: bytes=56 Sequence=5 ttl=255 time=20 ms

  --- 10.1.2.2 ping statistics ---
    5 packet(s) transmitted
    5 packet(s) received
    0.00% packet loss
    round-trip min/avg/max = 20/24/40 ms

[R5]os    
[R5]ospf 1 ro    
[R5]ospf 1 router-id 5.5.5.5
[R5-ospf-1]area 0    
[R5-ospf-1]area 0
[R5-ospf-1-area-0.0.0.0]net    
[R5-ospf-1-area-0.0.0.0]network 10.1.2.3 0.0.0.0
[R5-ospf-1-area-0.0.0.0]net
Aug  5 2023 19:03:38-08:00 R5 %%01OSPF/4/NBR_CHANGE_E(l)[1]:Neighbor changes eve
nt: neighbor status changed. (ProcessId=256, NeighborAddress=2.2.1.10, NeighborE
vent=HelloReceived, NeighborPreviousState=Down, NeighborCurrentState=Init) 
[R5-ospf-1-area-0.0.0.0]net    
[R5-ospf-1-area-0.0.0.0]network 192.168.5.1 0.0.0.0
[R5-ospf-1-area-0.0.0.0]    
[R5-ospf-1-area-0.0.0.0]q
[R5-ospf-1]dis    
[R5-ospf-1]display os    
[R5-ospf-1]display ospf pe    
[R5-ospf-1]display ospf peer br    
[R5-ospf-1]display ospf peer brief 

     OSPF Process 1 with Router ID 5.5.5.5
          Peer Statistic Information
 ----------------------------------------------------------------------------
 Area Id          Interface                        Neighbor id      State    
 0.0.0.0          Tunnel0/0/0                      4.4.4.4          Init        
 ----------------------------------------------------------------------------
[R5-ospf-1]q
[R5]int    
[R5]interface t    
[R5]interface Tunnel 0/0/0
[R5-Tunnel0/0/0]os    
[R5-Tunnel0/0/0]ospf net    
[R5-Tunnel0/0/0]ospf network-type br    
[R5-Tunnel0/0/0]ospf network-type broadcast 
Aug  5 2023 19:07:48-08:00 R5 %%01OSPF/3/NBR_CHG_DOWN(l)[2]:Neighbor event:neigh
bor state changed to Down. (ProcessId=256, NeighborAddress=4.4.4.4, NeighborEven
t=KillNbr, NeighborPreviousState=Init, NeighborCurrentState=Down) 
[R5-Tunnel0/0/0]
[R5-Tunnel0/0/0]
Aug  5 2023 19:07:48-08:00 R5 %%01OSPF/3/NBR_DOWN_REASON(l)[3]:Neighbor state le
aves full or changed to Down. (ProcessId=256, NeighborRouterId=4.4.4.4, Neighbor
AreaId=0, NeighborInterface=Tunnel0/0/0,NeighborDownImmediate reason=Neighbor Do
wn Due to Kill Neighbor, NeighborDownPrimeReason=Interface Parameter Mismatch, N
eighborChangeTime=2023-08-05 19:07:48-08:00) 
[R5-Tunnel0/0/0]
Aug  5 2023 19:07:52-08:00 R5 %%01OSPF/4/NBR_CHANGE_E(l)[4]:Neighbor changes eve
nt: neighbor status changed. (ProcessId=256, NeighborAddress=1.2.1.10, NeighborE
vent=HelloReceived, NeighborPreviousState=Down, NeighborCurrentState=Init) 
[R5-Tunnel0/0/0]
Aug  5 2023 19:07:52-08:00 R5 %%01OSPF/4/NBR_CHANGE_E(l)[5]:Neighbor changes eve
nt: neighbor status changed. (ProcessId=256, NeighborAddress=1.2.1.10, NeighborE
vent=2WayReceived, NeighborPreviousState=Init, NeighborCurrentState=2Way) 
[R5-Tunnel0/0/0]
Aug  5 2023 19:07:55-08:00 R5 %%01OSPF/4/NBR_CHANGE_E(l)[6]:Neighbor changes eve
nt: neighbor status changed. (ProcessId=256, NeighborAddress=2.2.1.10, NeighborE
vent=HelloReceived, NeighborPreviousState=Down, NeighborCurrentState=Init) 
[R5-Tunnel0/0/0]
Aug  5 2023 19:07:55-08:00 R5 %%01OSPF/4/NBR_CHANGE_E(l)[7]:Neighbor changes eve
nt: neighbor status changed. (ProcessId=256, NeighborAddress=2.2.1.10, NeighborE
vent=2WayReceived, NeighborPreviousState=Init, NeighborCurrentState=2Way) 
[R5-Tunnel0/0/0]
Aug  5 2023 19:08:30-08:00 R5 %%01OSPF/4/NBR_CHANGE_E(l)[8]:Neighbor changes eve
nt: neighbor status changed. (ProcessId=256, NeighborAddress=1.2.1.10, NeighborE
vent=AdjOk?, NeighborPreviousState=2Way, NeighborCurrentState=ExStart) 
[R5-Tunnel0/0/0]
Aug  5 2023 19:08:30-08:00 R5 %%01OSPF/4/NBR_CHANGE_E(l)[9]:Neighbor changes eve
nt: neighbor status changed. (ProcessId=256, NeighborAddress=2.2.1.10, NeighborE
vent=AdjOk?, NeighborPreviousState=2Way, NeighborCurrentState=ExStart) 
[R5-Tunnel0/0/0]
Aug  5 2023 19:08:30-08:00 R5 %%01OSPF/4/NBR_CHANGE_E(l)[10]:Neighbor changes ev
ent: neighbor status changed. (ProcessId=256, NeighborAddress=1.2.1.10, Neighbor
Event=NegotiationDone, NeighborPreviousState=ExStart, NeighborCurrentState=Excha
nge) 
[R5-Tunnel0/0/0]
Aug  5 2023 19:08:30-08:00 R5 %%01OSPF/4/NBR_CHANGE_E(l)[11]:Neighbor changes ev
ent: neighbor status changed. (ProcessId=256, NeighborAddress=2.2.1.10, Neighbor
Event=NegotiationDone, NeighborPreviousState=ExStart, NeighborCurrentState=Excha
nge) 
[R5-Tunnel0/0/0]
Aug  5 2023 19:08:30-08:00 R5 %%01OSPF/4/NBR_CHANGE_E(l)[12]:Neighbor changes ev
ent: neighbor status changed. (ProcessId=256, NeighborAddress=2.2.1.10, Neighbor
Event=ExchangeDone, NeighborPreviousState=Exchange, NeighborCurrentState=Loading
) 
[R5-Tunnel0/0/0]
Aug  5 2023 19:08:30-08:00 R5 %%01OSPF/4/NBR_CHANGE_E(l)[13]:Neighbor changes ev
ent: neighbor status changed. (ProcessId=256, NeighborAddress=2.2.1.10, Neighbor
Event=LoadingDone, NeighborPreviousState=Loading, NeighborCurrentState=Full) 
[R5-Tunnel0/0/0]
Aug  5 2023 19:08:30-08:00 R5 %%01OSPF/4/NBR_CHANGE_E(l)[14]:Neighbor changes ev
ent: neighbor status changed. (ProcessId=256, NeighborAddress=1.2.1.10, Neighbor
Event=ExchangeDone, NeighborPreviousState=Exchange, NeighborCurrentState=Loading
) 
[R5-Tunnel0/0/0]
Aug  5 2023 19:08:30-08:00 R5 %%01OSPF/4/NBR_CHANGE_E(l)[15]:Neighbor changes ev
ent: neighbor status changed. (ProcessId=256, NeighborAddress=1.2.1.10, Neighbor
Event=LoadingDone, NeighborPreviousState=Loading, NeighborCurrentState=Full) 
[R5-Tunnel0/0/0]

五、测试