实验

一、实验思路

1.先按照上图配置IP地址及环回

2.写缺省使公网可通

3.让R1、R4、R5每台路由器均成为中心站点形成全连网状结构拓扑

4.让R1成为中心站点R2R3为分支站点

5.分区域宣告ospf之后更改ospf在虚拟接口Tunnel工作方式为broadcast及让R1 当选DR

二、上虚拟机操作

1.配置IP地址及环回

[r1]int g0/0/0
[r1-GigabitEthernet0/0/0]ip add 6.1.1.1 24
[r1-GigabitEthernet0/0/0]int g0/0/1
[r1-GigabitEthernet0/0/1]ip add 16.1.1.1 24
[r1-GigabitEthernet0/0/1]int l0
[r1-LoopBack0]ip add 192.168.1.1 24

[r2]int g0/0/0
[r2-GigabitEthernet0/0/0]ip add 26.1.1.1 24
[r2-GigabitEthernet0/0/0]int l0
[r2-LoopBack0]ip add 192.168.2.1 24

[r3]int g0/0/0
[r3-GigabitEthernet0/0/0]ip add 36.1.1.1 24
[r3-GigabitEthernet0/0/0]int l0
[r3-LoopBack0]ip add 192.168.3.1 24

[r4]int g0/0/0
[r4-GigabitEthernet0/0/0]ip add 46.1.1.1 24
[r4-GigabitEthernet0/0/0]int l0
[r4-LoopBack0]ip add 192.168.4.1 24

[r5]int g0/0/0
[r5-GigabitEthernet0/0/0]ip add 56.1.1.1 24
[r5-GigabitEthernet0/0/0]int l0
[r5-LoopBack0]ip add 192.168.5.1 24

[r6]int g0/0/0
[r6-GigabitEthernet0/0/0]ip add 6.1.1.2 24
[r6-GigabitEthernet0/0/0]int g0/0/1
[r6-GigabitEthernet0/0/1]ip add 16.1.1.2 24
[r6-GigabitEthernet0/0/1]
[r6-GigabitEthernet0/0/1]int g0/0/2
[r6-GigabitEthernet0/0/2]ip add 26.1.1.2 24
[r6-GigabitEthernet0/0/2]
[r6-GigabitEthernet0/0/2]int g2/0/0
[r6-GigabitEthernet2/0/0]ip add 36.1.1.2 24
[r6-GigabitEthernet2/0/0]
[r6-GigabitEthernet2/0/0]int g3/0/0
[r6-GigabitEthernet3/0/0]ip add 46.1.1.2 24
[r6-GigabitEthernet3/0/0]
[r6-GigabitEthernet3/0/0]int g4/0/0
[r6-GigabitEthernet4/0/0]ip add 56.1.1.2 24
[r6-GigabitEthernet4/0/0]
[r6-GigabitEthernet4/0/0]int l0
[r6-LoopBack0]ip add 6.6.6.6 24

2.写缺省

[r1]ip route-static 0.0.0.0 0 6.1.1.2
[r1]ip route-static 0.0.0.0 0 16.1.1.2

[r2]ip route-static 0.0.0.0 0 26.1.1.2

[r3]ip route-static 0.0.0.0 0 36.1.1.2

[r4]ip route-static 0.0.0.0 0 46.1.1.2

[r5]ip route-static 0.0.0.0 0 56.1.1.2

3.让R1、R4、R5每台路由器均成为中心站点形成全连网状结构拓扑

[r1-Tunnel0/0/0]int t0/0/1
[r1-Tunnel0/0/1]ip add 192.168.7.1 24
[r1-Tunnel0/0/1]tunnel-protocol gre p2mp
[r1-Tunnel0/0/1]source 16.1.1.1
[r1-Tunnel0/0/1]nhrp entry 192.168.7.2 46.1.1.1 register
[r1-Tunnel0/0/1]nhrp entry 192.168.7.3 56.1.1.1 register
[r1-Tunnel0/0/1]nhrp entry multicast dynamic
[r1-Tunnel0/0/1]nhrp network-id 200

[r4-Tunnel0/0/0]ip add 192.168.7.2 24
[r4-Tunnel0/0/0]tunnel-protocol gre p2mp
[r4-Tunnel0/0/0]source 46.1.1.1
[r4-Tunnel0/0/0]nhrp entry 192.168.7.1 16.1.1.1 register
[r4-Tunnel0/0/0]nhrp entry multicast dynamic

[r4-Tunnel0/0/0]nhrp network-id 200

[r5]int t0/0/0
[r5-Tunnel0/0/0]ip add 192.168.7.3 24
[r5-Tunnel0/0/0]tunnel-protocol gre p2mp
[r5-Tunnel0/0/0]source 56.1.1.1
[r5-Tunnel0/0/0]nhrp entry multicast dynamic

[r5-Tunnel0/0/0]nhrp network-id 200

4.让R1成为中心站点R2R3为分支站点

[r1]interface Tunnel0/0/0
[r1-Tunnel0/0/1] ip address 192.168.0.1 24
[r1-Tunnel0/0/1] tunnel-protocol gre p2mp
[r1-Tunnel0/0/1] source 6.1.1.1
[r1-Tunnel0/0/1] nhrp entry multicast dynamic
[r1-Tunnel0/0/1] nhrp network-id 100

[r2]int t0/0/0
[r2-Tunnel0/0/0]ip add 192.168.0.2 24
[r2-Tunnel0/0/0]tunnel-protocol gre p2mp
[r2-Tunnel0/0/0]source GigabitEthernet 0/0/0
[r2-Tunnel0/0/0]nhrp entry 192.168.0.1 6.1.1.1 register
[r2-Tunnel0/0/0]nhrp network-id 100

[r3]int t0/0/0
[r3-Tunnel0/0/0]ip add 192.168.0.3 24
[r3-Tunnel0/0/0]tunnel-protocol gre p2mp
[r3-Tunnel0/0/0]source g0/0/0
[r3-Tunnel0/0/0]nhrp entry 192.168.0.1 6.1.1.1 register
[r3-Tunnel0/0/0]nhrp network-id 100