问题描述：

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一.配置路由接口、环回的IP地址以及缺省
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二.R1、R2、R3逻辑链路配置------2.2.2.0/24 R1：

[r1]int t 0/0/0 [r1-Tunnel0/0/0]ip add 2.2.2.1 24 [r1-Tunnel0/0/0]tunnel-protocol gre p2mp [r1-Tunnel0/0/0]source 16.0.0.1 Sep 28 2021 23:21:48-08:00 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]nhrp entry multicast dynamic [r1-Tunnel0/0/0]Please check whether system data has been changed, and save data in timeConfiguration console time out, please press any key to log onsys Enter system view, return user view with Ctrl+Z. [r1]display nhrp peer all ------------------------------------------------------------------------------- Protocol-addrMaskNBMA-addrNextHop-addrTypeFlag ------------------------------------------------------------------------------- 2.2.2.23226.0.0.12.2.2.2dynamicroute tunnel ------------------------------------------------------------------------------- Tunnel interface: Tunnel0/0/0 Created time: 00:03:20 Expire time: 01:56:40 ------------------------------------------------------------------------------- Protocol-addrMaskNBMA-addrNextHop-addrTypeFlag ------------------------------------------------------------------------------- 2.2.2.33236.0.0.12.2.2.3dynamicroute tunnel ------------------------------------------------------------------------------- Tunnel interface: Tunnel0/0/0 Created time: 00:00:28 Expire time: 01:59:32Number of nhrp peers: 2

R2：

[r2]int t 0/0/0 [r2-Tunnel0/0/0]ip add 2.2.2.2 24 [r2-Tunnel0/0/0]tunnel-protocol gre p2mp [r2-Tunnel0/0/0]source GigabitEthernet 0/0/0 Sep 28 2021 23:24:27-08:00 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]nhrp network-id 100 [r2-Tunnel0/0/0]nhrp entry 2.2.2.1 16.0.0.1 register

R3:

[r3]int Tunnel 0/0/0 [r3-Tunnel0/0/0]ip add 2.2.2.3 24 [r3-Tunnel0/0/0]tunnel-protocol gre p2mp [r3-Tunnel0/0/0]source GigabitEthernet 0/0/0 Sep 28 2021 23:28:16-08:00 r3 %%01IFNET/4/LINK_STATE(l)[0]:The line protocol IP on the interface Tunnel0/0/0 has entered the UP state. [r3-Tunnel0/0/0]nhrp network-id 100 [r3-Tunnel0/0/0]nhrp entry 2.2.2.1 16.0.0.1 register

三.R1、R4、R5 -----1.1.1.0/24 R1:

[r1]int t 0/0/1 [r1-Tunnel0/0/1]ip add 1.1.1.1 24 [r1-Tunnel0/0/1]tunnel-protocol gre p2mp [r1-Tunnel0/0/1]source 116.0.0.1 Sep 28 2021 23:38:31-08:00 r1 %%01IFNET/4/LINK_STATE(l)[0]:The line protocol IP on the interface Tunnel0/0/1 has entered the UP state. [r1-Tunnel0/0/1]nhrp network-id 200 [r1-Tunnel0/0/1]nhrp entry multicast dynamic [r1-Tunnel0/0/1]nhrp entry 1.1.1.2 46.0.0.1 register [r1-Tunnel0/0/1]nhrp entry 1.1.1.3 56.0.0.1 register [r1-Tunnel0/0/1]q [r1]display nhrp peer all ------------------------------------------------------------------------------- Protocol-addrMaskNBMA-addrNextHop-addrTypeFlag ------------------------------------------------------------------------------- 2.2.2.23226.0.0.12.2.2.2dynamicroute tunnel ------------------------------------------------------------------------------- Tunnel interface: Tunnel0/0/0 Created time: 00:20:08 Expire time: 01:39:52 ------------------------------------------------------------------------------- Protocol-addrMaskNBMA-addrNextHop-addrTypeFlag ------------------------------------------------------------------------------- 2.2.2.33236.0.0.12.2.2.3dynamicroute tunnel ------------------------------------------------------------------------------- Tunnel interface: Tunnel0/0/0 Created time: 00:17:16 Expire time: 01:42:44 ------------------------------------------------------------------------------- Protocol-addrMaskNBMA-addrNextHop-addrTypeFlag ------------------------------------------------------------------------------- 1.1.1.23246.0.0.11.1.1.2statichub ------------------------------------------------------------------------------- Tunnel interface: Tunnel0/0/1 Created time: 00:03:50 Expire time: -- ------------------------------------------------------------------------------- Protocol-addrMaskNBMA-addrNextHop-addrTypeFlag ------------------------------------------------------------------------------- 1.1.1.33256.0.0.11.1.1.3statichub ------------------------------------------------------------------------------- Tunnel interface: Tunnel0/0/1 Created time: 00:03:22 Expire time: --Number of nhrp peers: 4

R4:

[r4]int t 0/0/0 [r4-Tunnel0/0/0]ip add 1.1.1.2 24 [r4-Tunnel0/0/0]tunnel-protocol gre p2mp [r4-Tunnel0/0/0]source 46.0.0.1 Sep 28 2021 23:40:14-08:00 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]nhrp network-id 200 [r4-Tunnel0/0/0]nhrp entry multicast dynamic [r4-Tunnel0/0/0]nhrpentry 1.1.1.1 116.0.0.1 register Info: This peer protocol address conflicts with hub register peer protocol addre ss. [r4-Tunnel0/0/0]nhrp entry 1.1.1.3 56.0.0.1

R5:

[r5]int t 0/0/0 [r5-Tunnel0/0/0]ip add 1.1.1.3 24 [r5-Tunnel0/0/0]tunnel-protocol gre p2mp [r5-Tunnel0/0/0]source 56.0.0.1 Sep 28 2021 23:41:57-08:00 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]nhrp network-id 200 [r5-Tunnel0/0/0]nhrp entry multicast dynamic [r5-Tunnel0/0/0]nhrp entry 1.1.1.1 116.0.0.1 register Info: This peer protocol address conflicts with hub register peer protocol addre ss. [r5-Tunnel0/0/0]nhrp entry 1.1.1.2 46.0.0.1 register

四. 配置OSPF R1:

[r1]ospf 1 router-id 1.1.1.1 [r1-ospf-1]A 0 [r1-ospf-1-area-0.0.0.0]network 192.168.1.0 0.0.0.255 [r1-ospf-1-area-0.0.0.0]network 2.2.2.0 0.0.0.255 [r1-ospf-1-area-0.0.0.0]network 1.1.1.0 0.0.0.255 Sep 28 2021 23:57:47-08:00 r1 %%01OSPF/4/NBR_CHANGE_E(l)[0]:Neighbor changes eve nt: neighbor status changed. (ProcessId=256, NeighborAddress=2.2.2.2, NeighborEv ent=HelloReceived, NeighborPreviousState=Down, NeighborCurrentState=Init) [r1-ospf-1] Sep 28 2021 23:57:49-08:00 r1 %%01OSPF/4/NBR_CHANGE_E(l)[1]:Neighbor changes eve nt: neighbor status changed. (ProcessId=256, NeighborAddress=2.2.2.2, NeighborEv ent=2WayReceived, NeighborPreviousState=Init, NeighborCurrentState=ExStart) [r1-ospf-1] Sep 28 2021 23:57:49-08:00 r1 %%01OSPF/4/NBR_CHANGE_E(l)[2]:Neighbor changes eve nt: neighbor status changed. (ProcessId=256, NeighborAddress=2.2.2.2, NeighborEv ent=NegotiationDone, NeighborPreviousState=ExStart, NeighborCurrentState=Exchang e) [r1-ospf-1] Sep 28 2021 23:57:49-08:00 r1 %%01OSPF/4/NBR_CHANGE_E(l)[3]:Neighbor changes eve nt: neighbor status changed. (ProcessId=256, NeighborAddress=2.2.2.2, NeighborEv ent=ExchangeDone, NeighborPreviousState=Exchange, NeighborCurrentState=Loading) [r1-ospf-1] Sep 28 2021 23:57:49-08:00 r1 %%01OSPF/4/NBR_CHANGE_E(l)[4]:Neighbor changes eve nt: neighbor status changed. (ProcessId=256, NeighborAddress=2.2.2.2, NeighborEv ent=LoadingDone, NeighborPreviousState=Loading, NeighborCurrentState=Full)

R2:

[r2]ofp [r2]ofp [r2]osp [r2]ospf 1 r [r2]ospf 1 router-id 2.2.2.2 [r2-ospf-1]net [r2-ospf-1]net [r2-ospf-1]a 0 [r2-ospf-1-area-0.0.0.0]ne [r2-ospf-1-area-0.0.0.0]network 2.2.2.0 0.0.0.255 [r2-ospf-1-area-0.0.0.0]ne Sep 28 2021 23:57:48-08:00 r2 %%01OSPF/4/NBR_CHANGE_E(l)[0]:Neighbor changes eve nt: neighbor status changed. (ProcessId=256, NeighborAddress=1.2.2.2, NeighborEv ent=HelloReceived, NeighborPreviousState=Down, NeighborCurrentState=Init) [r2-ospf-1-area-0.0.0.0]ne Sep 28 2021 23:57:48-08:00 r2 %%01OSPF/4/NBR_CHANGE_E(l)[1]:Neighbor changes eve nt: neighbor status changed. (ProcessId=256, NeighborAddress=1.2.2.2, NeighborEv ent=2WayReceived, NeighborPreviousState=Init, NeighborCurrentState=ExStart) [r2-ospf-1-area-0.0.0.0]ne Sep 28 2021 23:57:48-08:00 r2 %%01OSPF/4/NBR_CHANGE_E(l)[2]:Neighbor changes eve nt: neighbor status changed. (ProcessId=256, NeighborAddress=1.2.2.2, NeighborEv ent=NegotiationDone, NeighborPreviousState=ExStart, NeighborCurrentState=Exchang e) [r2-ospf-1-area-0.0.0.0]ne Sep 28 2021 23:57:48-08:00 r2 %%01OSPF/4/NBR_CHANGE_E(l)[3]:Neighbor changes eve nt: neighbor status changed. (ProcessId=256, NeighborAddress=1.2.2.2, NeighborEv ent=ExchangeDone, NeighborPreviousState=Exchange, NeighborCurrentState=Loading) [r2-ospf-1-area-0.0.0.0]ne Sep 28 2021 23:57:48-08:00 r2 %%01OSPF/4/NBR_CHANGE_E(l)[4]:Neighbor changes eve nt: neighbor status changed. (ProcessId=256, NeighborAddress=1.2.2.2, NeighborEv ent=LoadingDone, NeighborPreviousState=Loading, NeighborCurrentState=Full) [r2-ospf-1-area-0.0.0.0]net [r2-ospf-1-area-0.0.0.0]network 192.168.2.0 0.0.0.255

R3:

[r3]ospf 1 router-id 3.3.3.3 [r3-ospf-1]a 0 [r3-ospf-1-area-0.0.0.0]network 2.2.2.0 0.0.0.255 [r3-ospf-1-area-0.0.0.0]network Sep 28 2021 23:59:29-08:00 r3 %%01OSPF/4/NBR_CHANGE_E(l)[0]:Neighbor changes eve nt: neighbor status changed. (ProcessId=256, NeighborAddress=1.2.2.2, NeighborEv ent=HelloReceived, NeighborPreviousState=Down, NeighborCurrentState=Init) [r3-ospf-1-area-0.0.0.0]network 192.168.3.0 0.0.0.255

R4:

[r4]ospf 1 router-id 4.4.4.4 [r4-ospf-1]a 0 [r4-ospf-1-area-0.0.0.0]network 2.2.2.0 0.0.0.255 [r4-ospf-1-area-0.0.0.0]network 1.1.1.0 0.0.0.255 [r4-ospf-1-area-0.0.0.0] Sep 29 2021 00:02:01-08:00 r4 %%01OSPF/4/NBR_CHANGE_E(l)[0]:Neighbor changes eve nt: neighbor status changed. (ProcessId=256, NeighborAddress=1.1.1.1, NeighborEv ent=HelloReceived, NeighborPreviousState=Down, NeighborCurrentState=Init) [r4-ospf-1-area-0.0.0.0] Sep 29 2021 00:02:01-08:00 r4 %%01OSPF/4/NBR_CHANGE_E(l)[1]:Neighbor changes eve nt: neighbor status changed. (ProcessId=256, NeighborAddress=1.1.1.1, NeighborEv ent=2WayReceived, NeighborPreviousState=Init, NeighborCurrentState=ExStart) [r4-ospf-1-area-0.0.0.0] Sep 29 2021 00:02:01-08:00 r4 %%01OSPF/4/NBR_CHANGE_E(l)[2]:Neighbor changes eve nt: neighbor status changed. (ProcessId=256, NeighborAddress=1.1.1.1, NeighborEv ent=NegotiationDone, NeighborPreviousState=ExStart, NeighborCurrentState=Exchang e) [r4-ospf-1-area-0.0.0.0] Sep 29 2021 00:02:01-08:00 r4 %%01OSPF/4/NBR_CHANGE_E(l)[3]:Neighbor changes eve nt: neighbor status changed. (ProcessId=256, NeighborAddress=1.1.1.1, NeighborEv ent=ExchangeDone, NeighborPreviousState=Exchange, NeighborCurrentState=Loading) [r4-ospf-1-area-0.0.0.0] Sep 29 2021 00:02:01-08:00 r4 %%01OSPF/4/NBR_CHANGE_E(l)[4]:Neighbor changes eve nt: neighbor status changed. (ProcessId=256, NeighborAddress=1.1.1.1, NeighborEv ent=LoadingDone, NeighborPreviousState=Loading, NeighborCurrentState=Full) [r4-ospf-1-area-0.0.0.0]ne [r4-ospf-1-area-0.0.0.0]network 192.168.4.0 0.0.0.255

R5:

[r5]ospf 1 router-id 5.5.5.5 [r5-ospf-1]a 0 [r5-ospf-1-area-0.0.0.0]network 1.1.1.0 0.0.0.255 [r5-ospf-1-area-0.0.0.0]network Sep 29 2021 00:03:54-08:00 r5 %%01OSPF/4/NBR_CHANGE_E(l)[0]:Neighbor changes eve nt: neighbor status changed. (ProcessId=256, NeighborAddress=1.1.1.1, NeighborEv ent=HelloReceived, NeighborPreviousState=Down, NeighborCurrentState=Init) [r5-ospf-1-area-0.0.0.0]network 192.168.5.0 0.0.0.255

五.R1、R2、R3-----p2mp R1:

[r1]int Tunnel 0/0/0 [r1-Tunnel0/0/0]ospf network-type p2mp[r1]display ip routing-table protocol ospf Route Flags: R - relay, D - download to fib ------------------------------------------------------------------------------ Public routing table : OSPF Destinations : 5Routes : 5OSPF routing table status : Destinations : 5Routes : 5Destination/MaskProtoPreCostFlags NextHopInterface2.2.2.2/32OSPF101562D2.2.2.2Tunnel0/0/0 2.2.2.3/32OSPF101562D2.2.2.3Tunnel0/0/0 192.168.2.1/32OSPF101562D2.2.2.2Tunnel0/0/0 192.168.3.1/32OSPF101562D2.2.2.3Tunnel0/0/0 192.168.4.1/32OSPF101562D1.1.1.2Tunnel0/0/1OSPF routing table status : Destinations : 0Routes : 0

R2:

[r2]int Tunnel 0/0/0 [r2-Tunnel0/0/0]ospf network-type p2mp

R3:

[r3]int Tunnel 0/0/0 [r3-Tunnel0/0/0]ospf network-type p2mp

六.R1、R4、R5全连的MGRE R1:

[r1]interfaceTunnel 0/0/1 [r1-Tunnel0/0/1]ospf network-type broadcast

R4:

[r4]int Tunnel 0/0/0 [r4-Tunnel0/0/0]ospf network-type broadcast

R5:

[r5]int Tunnel 0/0/0 [r5-Tunnel0/0/0]ospf network-type broadcast

【网络|网络基础（十三）----实操----MGRE环境下的OSPF综合实验】

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