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1、拓扑信息
2、要求及分析
3、配置截图
4.测试
2.area0 区域手工配置R1为DR 、R2为BDR：
修改接口优先级
3.R3-R5之间使用密文认证方式：
进入接口后选择MD5加密
4.R1、R2、R5上配置环回接口，但是R5环回不能宣告进OSPF:
配置环回地址，用缺省路由让R5不能宣告进OSPF（非强制性下发）
5.ping命令全网可达
AR1
<Huawei>sys
Enter system view, return user view with Ctrl+Z.
[Huawei-GigabitEthernet0/0/0]ip add 192.168.1.9 29
Mar 26 2023 22:15:33-08:00 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 l 0
[Huawei-LoopBack0]ip add 192.168.1.65 26
[Huawei-LoopBack0]quit
[Huawei]ospf 1 router-id 1.1.1.1
[Huawei-ospf-1]area 0
[Huawei-ospf-1-area-0.0.0.0]network 192.168.1.65 0.0.0.0
[Huawei-ospf-1-area-0.0.0.0]network 192.168.1.9 0.0.0.0
[Huawei-ospf-1-area-0.0.0.0]int g 0/0/0
[Huawei-GigabitEthernet0/0/0]ospf dr-
[Huawei-GigabitEthernet0/0/0]ospf dr-priority 10
<r1>display ospf peer
OSPF Process 1 with Router ID 1.1.1.1
Neighbors
Area 0.0.0.0 interface 192.168.1.9(GigabitEthernet0/0/0)'s neighbors
Router ID: 2.2.2.2 Address: 192.168.1.10
State: Full Mode:Nbr is Master Priority: 1
DR: 192.168.1.10 BDR: 192.168.1.11 MTU: 0
Dead timer due in 34 sec
Retrans timer interval: 0
Neighbor is up for 00:00:19
Authentication Sequence: [ 0 ]
Router ID: 3.3.3.3 Address: 192.168.1.11
State: Full Mode:Nbr is Master Priority: 1
DR: 192.168.1.10 BDR: 192.168.1.11 MTU: 0
Dead timer due in 29 sec
Retrans timer interval: 5
Neighbor is up for 00:00:19
Authentication Sequence: [ 0 ]
<r1>reset o
<r1>reset ospf p
<r1>reset ospf process
Warning: The OSPF process will be reset. Continue? [Y/N]:n
<r1>
Apr 1 2023 15:56:21-08:00 r1 %%01OSPF/3/NBR_DOWN_REASON(l)[16]:Neighbor state l
eaves full or changed to Down. (ProcessId=256, NeighborRouterId=2.2.2.2, Neighbo
rAreaId=0, NeighborInterface=GigabitEthernet0/0/0,NeighborDownImmediate reason=N
eighbor Down Due to 1-Wayhello Received, NeighborDownPrimeReason=1-Wayhello Rece
ived, NeighborChangeTime=2023-04-01 15:56:21-08:00)
<r1>
Apr 1 2023 15:56:21-08:00 r1 %%01OSPF/4/NBR_CHANGE_E(l)[17]:Neighbor changes ev
ent: neighbor status changed. (ProcessId=256, NeighborAddress=10.1.168.192, Neig
hborEvent=1-Way, NeighborPreviousState=Full, NeighborCurrentState=Init)
<r1>
Apr 1 2023 15:56:26-08:00 r1 %%01OSPF/4/NBR_CHANGE_E(l)[18]:Neighbor changes ev
ent: neighbor status changed. (ProcessId=256, NeighborAddress=10.1.168.192, Neig
hborEvent=2WayReceived, NeighborPreviousState=Init, NeighborCurrentState=ExStart
)
<r1>
Apr 1 2023 15:56:26-08:00 r1 %%01OSPF/4/NBR_CHANGE_E(l)[19]:Neighbor changes ev
ent: neighbor status changed. (ProcessId=256, NeighborAddress=10.1.168.192, Neig
hborEvent=NegotiationDone, NeighborPreviousState=ExStart, NeighborCurrentState=E
xchange)
<r1>
Apr 1 2023 15:56:26-08:00 r1 %%01OSPF/4/NBR_CHANGE_E(l)[20]:Neighbor changes ev
ent: neighbor status changed. (ProcessId=256, NeighborAddress=10.1.168.192, Neig
hborEvent=ExchangeDone, NeighborPreviousState=Exchange, NeighborCurrentState=Loa
ding)
<r1>
Apr 1 2023 15:56:26-08:00 r1 %%01OSPF/4/NBR_CHANGE_E(l)[21]:Neighbor changes ev
ent: neighbor status changed. (ProcessId=256, NeighborAddress=10.1.168.192, Neig
hborEvent=LoadingDone, NeighborPreviousState=Loading, NeighborCurrentState=Full)
<r1>
Apr 1 2023 15:56:52-08:00 r1 %%01OSPF/3/NBR_DOWN_REASON(l)[22]:Neighbor state l
eaves full or changed to Down. (ProcessId=256, NeighborRouterId=3.3.3.3, Neighbo
rAreaId=0, NeighborInterface=GigabitEthernet0/0/0,NeighborDownImmediate reason=N
eighbor Down Due to 1-Wayhello Received, NeighborDownPrimeReason=1-Wayhello Rece
ived, NeighborChangeTime=2023-04-01 15:56:52-08:00)
<r1>
Apr 1 2023 15:56:52-08:00 r1 %%01OSPF/4/NBR_CHANGE_E(l)[23]:Neighbor changes ev
ent: neighbor status changed. (ProcessId=256, NeighborAddress=11.1.168.192, Neig
hborEvent=1-Way, NeighborPreviousState=Full, NeighborCurrentState=Init)
<r1>
Apr 1 2023 15:56:58-08:00 r1 %%01OSPF/4/NBR_CHANGE_E(l)[24]:Neighbor changes ev
ent: neighbor status changed. (ProcessId=256, NeighborAddress=11.1.168.192, Neig
hborEvent=2WayReceived, NeighborPreviousState=Init, NeighborCurrentState=ExStart
)
<r1>
Apr 1 2023 15:56:58-08:00 r1 %%01OSPF/4/NBR_CHANGE_E(l)[25]:Neighbor changes ev
ent: neighbor status changed. (ProcessId=256, NeighborAddress=11.1.168.192, Neig
hborEvent=NegotiationDone, NeighborPreviousState=ExStart, NeighborCurrentState=E
xchange)
<r1>
Apr 1 2023 15:56:58-08:00 r1 %%01OSPF/4/NBR_CHANGE_E(l)[26]:Neighbor changes ev
ent: neighbor status changed. (ProcessId=256, NeighborAddress=11.1.168.192, Neig
hborEvent=ExchangeDone, NeighborPreviousState=Exchange, NeighborCurrentState=Loa
ding)
<r1>
Apr 1 2023 15:56:58-08:00 r1 %%01OSPF/4/NBR_CHANGE_E(l)[27]:Neighbor changes ev
ent: neighbor status changed. (ProcessId=256, NeighborAddress=11.1.168.192, Neig
hborEvent=LoadingDone, NeighborPreviousState=Loading, NeighborCurrentState=Full)
4、测试
AR1---DR
AR2---BDR
