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MGRE环境下的OSPF综合实验
2022-08-11 05:21:00 【朵拉爱学习】
实验目标:
1.R6为isp,只能配置IP,R1-R5的环回为私有网段
2.R1/R4/R5为全连MGRE结构,R1/R2/R3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,私有网段用OSPF完成
实验配置:
R1
[r1]int g 0/0/0
[r1-GigabitEthernet0/0/0]ip address 116.0.0.1 24
[r1-GigabitEthernet0/0/0]int g 0/0/1
[r1-GigabitEthernet0/0/1]ip address 16.0.0.1 24
[r1-GigabitEthernet0/0/1]int l0
[r1-LoopBack0]ip address 192.168.1.1 24
R2
[r2]int g 0/0/0
[r2-GigabitEthernet0/0/0]ip add 26.0.0.1 24
[r2-GigabitEthernet0/0/0]int l0
[r2-LoopBack0]ip add 192.168.2.1 24
R3
[r3]int g 0/0/0
[r3-GigabitEthernet0/0/0]ip add 36.0.0.1 24
[r3-GigabitEthernet0/0/0]int l0
[r3-LoopBack0]ip add 192.168.3.1 24
R4
[r4]int g 0/0/0
[r4-GigabitEthernet0/0/0]ip add 46.0.0.1 24
[r4-GigabitEthernet0/0/0]int l0
[r4-LoopBack0]ip add 192.168.4.1 24
R5
[r5]int g 0/0/0
[r5-GigabitEthernet0/0/0]ip add 56.0.0.1 24
[r5-GigabitEthernet0/0/0]int l0
[r5-LoopBack0]ip add 192.168.5.1 24
R6
[isp]int g 0/0/0
[isp-GigabitEthernet0/0/0]ip add 16.0.0.2 24
[isp-GigabitEthernet0/0/0]int g 0/0/1
[isp-GigabitEthernet0/0/1]ip add 116.0.0.2 24
[isp-GigabitEthernet0/0/1]int g 0/0/2
[isp-GigabitEthernet0/0/2]ip add 26.0.0.2 24
[isp-GigabitEthernet0/0/2]int g 2/0/0
[isp-GigabitEthernet2/0/0]ip add 36.0.0.2 24
[isp-GigabitEthernet2/0/0]int g 3/0/0
[isp-GigabitEthernet3/0/0]ip add 46.0.0.2 24
[isp-GigabitEthernet3/0/0]int g 4/0/0
[isp-GigabitEthernet4/0/0]ip add 56.0.0.2 24
[R1]ip route-static 0.0.0.0 0 16.0.0.2
[R1]ip route-static 0.0.0.0 0 116.0.0.2
[R2]ip route-static 0.0.0.0 0 26.0.0.2
[R3]ip route-static 0.0.0.0 0 36.0.0.2
[R4]ip route-static 0.0.0.0 0 46.0.0.2
[R5]ip route-static 0.0.0.0 0 56.0.0.2
全连MGRE,将R1/R4/R5均作为中心配置
[r1]int t0/0/0
[r1-Tunnel0/0/0]ip add 10.0.0.1 24
[r1-Tunnel0/0/0]tunnel-protocol gre p2mp
[r1-Tunnel0/0/0]source 16.0.0.1
[r1-Tunnel0/0/0]nhrp network-id 100
[r1-Tunnel0/0/0]nhrp entry multicast dynamic
r4]int t0/0/0
[r4-Tunnel0/0/0]tunnel-protocol gre p2mp
[r4-Tunnel0/0/0]source 46.0.0.1
[r4-Tunnel0/0/0]nhrp network-id 100
[r4-Tunnel0/0/0]ip add 10.0.0.2 24
[r4-Tunnel0/0/0]tunnel-protocol gre p2mp
[r4-Tunnel0/0/0]source 46.0.0.1
[r4-Tunnel0/0/0]nhrp network-id 100
[r4-Tunnel0/0/0]nhrp entry multicast dynamic
每个中心到另外两个中心注册
[R1-Tunnel0/0/0]nhrp entry 10.0.0.2 46.0.0.1 register
[R1-Tunnel0/0/0]nhrp entry 10.0.0.3 56.0.0.1 register
[R4-Tunnel0/0/0]nhrp entry 10.0.0.1 16.0.0.1 register
[R4-Tunnel0/0/0]nhrp entry 10.0.0.3 56.0.0.1 register
[R5-Tunnel0/0/0]nhrp entry 10.0.0.1 16.0.0.1 register
[R5-Tunnel0/0/0]nhrp entry 10.0.0.2 46.0.0.1 register
配置R1/R2/R3的星型网络拓扑MGRE,R1为中心
[R2]int t 0/0/0
[R2-Tunnel0/0/0]ip add 11.0.0.2 24
[R2-Tunnel0/0/0]tunnel-protocol gre p2mp
[R2-Tunnel0/0/0]source GigabitEthernet 0/0/0
[R2-Tunnel0/0/0]nhrp network-id 200
[R2-Tunnel0/0/0]nhrp entry 11.0.0.1 116.0.0.1 register
构建OSPF
[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 10.0.0.0 0.0.0.255
[R1-ospf-1-area-0.0.0.0]network 11.0.0.0 0.0.0.255
[R2]ospf 1 router-id 2.2.2.2
[R2-ospf-1]a 0
[R2-ospf-1-area-0.0.0.0]network 192.168.2.0 0.0.0.255
[R2-ospf-1-area-0.0.0.0]network 11.0.0.0 0.0.0.255
[R3]ospf 1 router-id 3.3.3.3
[R3-ospf-1]a 0
[R3-ospf-1-area-0.0.0.0]network 192.168.3.0 0.0.0.255
[R3-ospf-1-area-0.0.0.0]network 11.0.0.0 0.0.0.255
[R4]ospf 1 router-id 4.4.4.4
[R4-ospf-1]a 0
[R4-ospf-1-area-0.0.0.0]network 192.168.4.0 0.0.0.255
[R4-ospf-1-area-0.0.0.0]network 10.0.0.0 0.0.0.255
[R5]ospf 1 router-id 5.5.5.5
[R5-ospf-1]a 0
[R5-ospf-1-area-0.0.0.0]network 192.168.5.0 0.0.0.255
[R5-ospf-1-area-0.0.0.0]network 10.0.0.0 0.0.0.255
修改R1/R2/R3的mgre下ospf的工作模式为broadcast,让R2,R3放弃选举或者直接让R1/R2/R3的ospf网络类型改为p2mp,R2/R3优先级改为0,放弃选举。
[R1-Tunnel0/0/1]ospf network-type broadcast
[R2-Tunnel0/0/0]ospf network-type broadcast
[R2-Tunnel0/0/0]ospf network-type broadcast
[R2-Tunnel0/0/0]ospf dr-priority 0
[R3-Tunnel0/0/0]ospf dr-priority 0
将所有的OSPF网络类型设置为P2MP
[R1-Tunnel0/0/0]ospf network-type p2mp
[R1-Tunnel0/0/1]ospf network-type p2mp
[R2-Tunnel0/0/0]ospf network-type p2mp
[R3-Tunnel0/0/0]ospf network-type p2mp
[R4-Tunnel0/0/1]ospf network-type p2mp
[R5-Tunnel0/0/0]ospf network-type p2mp
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