OSPF综合实验

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实验拓扑图

OSPF综合实验

要求：

1，R4为ISP，其上只能配置IP地址；R4与其他所有直连设备间均使用公有IP

2，R3-R5/6/7为MGRE环境，R3为中心站点；

3，整个OSPF环境IP基于172.16.0.0/16划分；

4，所有设备均可访问R4的环回；

5，减少LSA的更新量，加快收敛，保障更新安全；

6，全网可达

实验步骤

1.网段划分

整个OSPF环境 要基于172.16.0.0/16划分成6个区域，至少要借3位划分出8个网段。

 172.16.0.0   19   -- 区域0

 172.16.32.0  19   -- 区域1

 172.16.64.0  19   -- 区域2

 172.16.96.0  19   -- 区域3

 172.16.128.0 19   -- 区域4

 172.16.160.0 19   -- rip区

172.16.0.0 19--区域0

172.16.0.0 24--P2P

172.16.0.0 30

172.16.0.4 30

172.16.0.8 30

172.16.1.0 24 --MA

172.16.1.0 29

172.16.1.8 29

172.16.1.16 29

172.16.1.24 29

172.16.32.0 19--区域1

172.16.32.0 24--P2P

172.16.32.0 30

172.16.32.4 30

172.16.32.8 30

172.16.33.0 24 --MA

172.16.33.0 29

172.16.33.8 29

172.16.33.16 29

172.16.33.24 29

172.16.34.0 24--用户

172.16.35.0 24

...

172.16.64.0 19--区域2

172.16.64.0 24 P2P

172.16.64.0 30

172.16.64.4 30

172.16.64.8 30

172.16.64.12 30

172.16.65.0 24--MA

172.16.65.0 29

172.16.65.8 29

172.16.65.16 29

172.16.66.0 24

172.16.67.0 24

...

172.16.96.0 19--区域3

172.16.96.0 24-P2P

172.16.96.0 30

172.16.96.4 30

172.16.97.0 24-MA

172.16.97.0 29

172.16.97.8 29

172.16.97.16 29

172.16.98.0 24

172.16.99.0 24

...

172.16.128.0 19--区域4

172.16.128.0 24 -P2P

172.16.128.0 30

172.16.128.4 30

172.16.129.0 24-MA

172.16.129.0 29

172.16.129.8 29

172.16.130.0 24

172.16.131.0 24

172.16.160.0 19--RIP

172.16.160.0 24

172.16.161.0 24

172.16.192.0 19

172.16.224.0 19

2.配置公网链路

area0

r3

[R3]int s 4/0/0
[R3-Serial4/0/0]ip add 34.0.0.1 24
[R3-Serial4/0/0]q
[R3]ip route-static 0.0.0.0 0 34.0.0.2

r4

[R4]int s 4/0/0
[R4-Serial4/0/0]ip add 34.0.0.2 24
[R4-Serial4/0/0]int s 4/0/1
[R4-Serial4/0/1]ip add 45.0.0.2 24
[R4-Serial4/0/1]int s 3/0/0
[R4-Serial3/0/0]ip add 46.0.0.2 24
[R4-Serial3/0/0]int g 0/0/0
[R4-GigabitEthernet0/0/0]ip add 47.0.0.2 24
[R4-GigabitEthernet0/0/0]int lo 0                        
[R4-LoopBack0]ip add 4.4.4.4 24

r5

[R5]int s 4/0/0
[R5-Serial4/0/0]ip add 45.0.0.1 24
[R5-Serial4/0/0]int l0
[R5-LoopBack0]ip add 172.16.2.1 24
[R5-LoopBack0]q
[R5]ip route-static 0.0.0.0 0 45.0.0.2

r6

[R6]int s 4/0/0
[R6-Serial4/0/0]ip add 46.0.0.1 24
[R6-Serial4/0/0]int l0
[R6-LoopBack0]ip add 172.16.3.1 24
[R6-LoopBack0]q
[R6]ip route-static 0.0.0.0 0 46.0.0.2

r7

[R7]int g 0/0/0
[R7-GigabitEthernet0/0/0]ip add 47.0.0.1 24
[R7-GigabitEthernet0/0/0]int l0
[R7-LoopBack0]ip add 172.16.4.1 24
[R7-LoopBack0]q
[R7]ip route-static 0.0.0.0 0 47.0.0.2

area1

r1

[R1]int g 0/0/0
[R1-GigabitEthernet0/0/0]ip add 172.16.33.1 29
[R1-GigabitEthernet0/0/0]int l0
[R1-LoopBack0]ip add 172.16.34.1 24

r2

[R2]int g0/0/0
[R2-GigabitEthernet0/0/0]ip add 172.16.33.2 29
[R2-GigabitEthernet0/0/0]int l0
[R2-LoopBack0]ip add 172.16.35.1 24

r3

[R3]int g 0/0/0
[R3-GigabitEthernet0/0/0]ip add 172.16.33.3 29
[R3-GigabitEthernet0/0/0]int l0
[R3-LoopBack0]ip add 172.16.36.1 24

area2

r6

[R6]int g 0/0/0
[R6-GigabitEthernet0/0/0]ip add 172.16.64.1 30

r11

[R11]int g 0/0/0
[R11-GigabitEthernet0/0/0]ip add 172.16.64.2 30
[R11-GigabitEthernet0/0/0]int g 0/0/1
[R11-GigabitEthernet0/0/1]ip add 172.16.64.5 30
[R11]int l0
[R11-LoopBack0]ip add 172.16.66.1 24

r12

[R12]int g 0/0/0
[R12-GigabitEthernet0/0/0]ip add 172.16.64.6 30

area3

r7

[R7]int g0/0/1
[R7-GigabitEthernet0/0/1]ip add 172.16.96.1 30

r8

[R8]int g0/0/0
[R8-GigabitEthernet0/0/0]ip add 172.16.96.2 30
[R8-GigabitEthernet0/0/0]int g0/0/1
[R8-GigabitEthernet0/0/1]ip add 172.16.96.5 30
[R8]int l0
[R8-LoopBack0]ip add 172.16.98.1 24

r9

[R9]int g 0/0/0
[R9-GigabitEthernet0/0/0]ip add 172.16.96.6 30
[R9]int l0
[R9-LoopBack0]ip add 172.16.99.1 24

area4

r9

[R9]int g0/0/1
[R9-GigabitEthernet0/0/1]ip add 172.16.128.1 30
[R9-GigabitEthernet0/0/1]int l0
[R9-LoopBack0]ip add 172.16.130.1 24

r10

[R10]int g0/0/0
[R10-GigabitEthernet0/0/0]ip add 172.16.128.2 30
[R10-GigabitEthernet0/0/0]int l0
[R10-LoopBack0]ip add 172.16.131.1 24

rip区

r12

[R12]int l0
[R12-LoopBack0]ip add 172.16.160.1 24
[R12-LoopBack0]int l1
[R12-LoopBack1]ip add 172.16.161.1 24

3.配置以r3为中心的MGRE环境

r3

[R3]int t 0/0/0
[R3-Tunnel0/0/0]ip add 172.16.1.1 29        
[R3-Tunnel0/0/0]tunnel-protocol gre p2mp 
[R3-Tunnel0/0/0]source 34.0.0.1
[R3-Tunnel0/0/0]nhrp network-id 100
[R3-Tunnel0/0/0]nhrp entry multicast dynamic        
interface Tunnel0/0/0
ip address 172.16.1.1 255.255.255.248 
tunnel-protocol gre p2mp
source 34.0.0.1
nhrp entry multicast dynamic
nhrp network-id 100

r5

[R5]int t 0/0/0
[R5-Tunnel0/0/0]ip add 172.16.1.2 29
[R5-Tunnel0/0/0]tunnel-protocol gre p2mp 
[R5-Tunnel0/0/0]source s 4/0/0
[R5-Tunnel0/0/0]nhrp network-id 100
[R5-Tunnel0/0/0]nhrp entry 172.16.1.1 34.0.0.1 register

r6

[R6]int t 0/0/0
[R6-Tunnel0/0/0]ip add 172.16.1.3 29
[R6-Tunnel0/0/0]tunnel-protocol gre p2mp 
[R6-Tunnel0/0/0]source s 4/0/0
[R6-Tunnel0/0/0]nhrp network-id 100
[R6-Tunnel0/0/0]nhrp entry 172.16.1.1 34.0.0.1 register

r7

[R7]int t0/0/0
[R7-Tunnel0/0/0]ip add 172.16.1.4 29
[R7-Tunnel0/0/0]tunnel-protocol gre p2mp    
[R7-Tunnel0/0/0]source g 0/0/0
[R7-Tunnel0/0/0]nhrp network-id 100
[R7-Tunnel0/0/0]nhrp entry 172.16.1.1 34.0.0.1 register

检验

r3 ping r5

[R3]ping-a 172.16.1.1 172.16.1.2 
 PING 172.16.1.2: 56 data bytes, press CTRL_C to break
   Reply from 172.16.1.2: bytes=56 Sequence=l ttl=255 time=30 ms 
   Reply from 172.16.1.2: bytes=56 Sequence=2 ttl=255 time=30 ms 
   Reply from 172.16.1.2: bytes=56 Sequence=3 ttl=255 time=30 ms 
   Reply from 172.16.1.2: bytes=56 Sequence=4 ttl=255 time=30 ms
   Reply from 172.16.1.2: bytes=56 Sequence-5 tt1=255 time=10 ms
---172.16.1.2 ping statistics---
   5 packet(s) transmitted
   5 packet(s) received
   0.00% packet loss
   round-trip min/avg/max= 10/26/30 ms

r3 ping r6

[R3]ping-a 172.16.1.1 172.16.1.3 
 PING 172.16.1.3: 56 data bytes, press CTRL_C to break
    Reply from 172.16.1.3: bytes=56 Sequence=l ttl=255 time=20 ms 
    Reply from 172.16.1.3: bytes=56 Sequence=2 ttl=255 time=20 ms 
    Reply from 172.16.1.3: bytes=56 Sequence=3 ttl=255 time=10 ms
    Reply from 172.16.1.3: bytes=56 Sequence=4 ttl=255 time=10 ms
    Reply from 172.16.1.3: bytes=56 Sequence=5 ttl-255 time=30 ms
---172.16.1.3 ping statistics ---
    5 packet(s) transmitted
    5 packet(s) received
    0.00% packet loss
    round-trip min/avg/max=10/20/30 ms

r3 ping r7

[R3]ping-a 172.16.1.1 172.16.1.4 
 PING 172.16.1.4: 56 data bytes, press CTRL_C to break 
    Reply from 172.16.1.4: bytes=56 Sequence=l ttl=255 time=40 ms 
    Reply from 172.16.1.4: bytes=56 Sequence=2 tt1=255 time=20 ms 
    Reply from 172.16.1.4: bytes=56 Sequence=3 ttl=255 time=30 ms
    Reply from 172.16.1.4: bytes=56 Sequence=4 ttl=255 time=40 ms
    Reply from 172.16.1.4: bytes=56 Sequence=5 ttl=255 time=30 ms
---172.16.1.4 ping statistics---
    5 packet(s) transmitted
    5 packet(s) received
    0.00% packet loss
    round-trip min/avg/max=20/32/40 ms

4.配置OSPF

r1

[R1]ospf 1 router-id 1.1.1.1    
[R1-ospf-1]area 1
[R1-ospf-1-area-0.0.0.1]network 172.16.32.0 0.0.31.255

r2

[R2]ospf 1 router-id 2.2.2.2    
[R2-ospf-1]area 1
[R2-ospf-1-area-0.0.0.1]network 172.16.32.0 0.0.31.255

r3

[R3]ospf 1 router-id 3.3.3.3
[R3-ospf-1]area 1
[R3-ospf-1-area-0.0.0.0]network 172.16.33.3 0.0.0.0
[R3-ospf-1-area-0.0.0.0]network 172.16.36.1 0.0.0.0
[R3-ospf-1-area-0.0.0.1]area 0
[R3-ospf-1-area-0.0.0.0]network 172.16.1.1 0.0.0.0

r5

[R5]ospf 1 router-id 5.5.5.5    
[R5-ospf-1]area 0
[R5-ospf-1-area-0.0.0.0]network 172.16.2.1 0.0.0.0
[R5-ospf-1-area-0.0.0.0]network 172.16.1.2 0.0.0.0

r6

[R6]ospf 1 router-id 6.6.6.6
[R6-ospf-1]area 0
[R5-ospf-1-area-0.0.0.0]network 172.16.3.1 0.0.0.0
[R5-ospf-1-area-0.0.0.0]network 172.16.1.3 0.0.0.0
[R6-ospf-1]area 2
[R5-ospf-1-area-0.0.0.2]network 172.16.64.1 0.0.0.0

r7

[R7-ospf-1]area 0
[R7-ospf-1-area-0.0.0.0]network 172.16.4.1 0.0.0.0
[R7-ospf-1-area-0.0.0.0]network 172.16.1.4 0.0.0.0
[R7-ospf-1-area-0.0.0.0]area 3
[R7-ospf-1-area-0.0.0.3]network 172.16.96.1 0.0.0.0

r8

[R8]ospf 1 router-id 8.8.8.8
[R8-ospf-1]area 3
[R8-ospf-1-area-0.0.0.3]network 172.16.96.0 0.0.31.255

r9

[R9]ospf 1 router-id 9.9.9.9
[R9-ospf-1]area 3
[R9-ospf-1-area-0.0.0.3]network 172.16.96.6 0.0.0.0
[R9-ospf-1-area-0.0.0.3]area 4
[R9-ospf-1-area-0.0.0.4]network 172.16.128.0 0.0.31.255

r10

[R10]ospf 1 router-id 10.10.10.10
[R10-ospf-1]area 4
[R10-ospf-1-area-0.0.0.4]network 172.16.128.0 0.0.31.255

r11

[R11]ospf 1 router-id 11.11.11.11
[R11-ospf-1]area 2
[R11-ospf-1-area-0.0.0.2]network 172.16.64.0 0.0.31.255

r12

[R12]ospf 1 router-id 12.12.12.12
[R12-ospf-1]area 2
[R12-ospf-1-area-0.0.0.2]network 172.16.64.0 0.0.31.255

5.更改tunnel接口类型

r3

[R3]int Tunnel 0/0/0
[R3-Tunnel0/0/0]ospf network-type p2mp

r5

[R5]int Tunnel 0/0/0
[R5-Tunnel0/0/0]ospf network-type p2mp

r6

[R6]int Tunnel 0/0/0    
[R6-Tunnel0/0/0]ospf network-type p2mp

r7

[R7]int Tunnel 0/0/0
[R7-Tunnel0/0/0]ospf network-type p2mp

6.进行重发布，使配置OSPF的设备获取域外路由信息

r12

[R12]ospf 1
[R12-ospf-1]import-route rip
[R12-ospf-1]rip 1
[R12-rip-1]network 172.16.0.0

r9

[R9]ospf 1
[R9-ospf-1]undo area 4
[R9]ospf 2 router-id 9.9.9.9
[R9-ospf-2]area 0 
[R9-ospf-2-area-0.0.0.0]network 172.16.128.0 0.0.31.255
[R9]ospf 1
[R9-ospf-1]import-route ospf 2

r10

[R10]undo ospf 1
Warning: The OSPF process will be deleted. Continue? [Y/N]:y
[R10]ospf 2 router-id 10.10.10.10
[R10-ospf-2]area 0
[R10-ospf-2-area-0.0.0.0]network 172.16.128.0 0.0.31.255

7.路由汇总

r3

[R3]ospf 1
[R3-ospf-1]area 1
[R3-ospf-1-area-0.0.0.1]abr-summary 172.16.32.0 255.255.224.0

r6

[R6]ospf 1
[R6-ospf-1]area 2
[R6-ospf-1-area-0.0.0.2]abr-summary 172.16.64.0 255.255.224.0

r7

[R7]ospf 1
[R7-ospf-1]area 3
[R7-ospf-1-area-0.0.0.3]abr-summary 172.16.96.0 255.255.224.0

r9

[R9]ospf 1
[R9-ospf-1]asbr-summary 172.16.128.0 255.255.224.0

r12

[R12]ospf
[R12-ospf-1]asbr-summary 172.16.160.0 255.255.224.0

8.设置特殊区域

r1

[R1]ospf
[R1-ospf-1]area 1
[R1-ospf-1-area-0.0.0.1]stub

r2

[R2]ospf
[R2-ospf-1]area 1
[R2-ospf-1-area-0.0.0.1]stub

r3

[R3]ospf
[R3-ospf-1]area 1
[R3-ospf-1-area-0.0.0.1]stub no-summary

r6

[R6]ospf
[R6-ospf-1]area 2
[R6-ospf-1-area-0.0.0.2]nssa
[R6-ospf-1-area-0.0.0.2]nssa no-summary

r9

[R9]ospf 2
[R9-ospf-2]default-route-advertise

r11

[R11]ospf
[R11-ospf-1]area 2
[R11-ospf-1-area-0.0.0.2]nssa

r12

[R12]ospf
[R12-ospf-1]area 2
[R12-ospf-1-area-0.0.0.2]nssa

9.区域加密

r1

[R1]ospf 1
[R1-ospf-1]area 1
[R1-ospf-1-area-0.0.0.1]authentication-mode md5 1 cipher 12345

r2

[R2]ospf 1    
[R2-ospf-1]area 1    
[R2-ospf-1-area-0.0.0.1]authentication-mode md5 1 cipher 12345

r3

[R3]ospf 1
[R3-ospf-1]area 1    
[R3-ospf-1-area-0.0.0.1]authentication-mode md5 1 cipher 12345

10.修改hello时间加快收敛

r3

[R3]int Tunnel 0/0/0
[R3-Tunnel0/0/0]ospf timer hello 10

r5

[R5]int Tunnel 0/0/0    
[R5-Tunnel0/0/0]ospf timer hello 10

r6

[R6]int Tunnel 0/0/0
[R6-Tunnel0/0/0]ospf timer hello 10

r7

[R7]int Tunnel 0/0/0    
[R7-Tunnel0/0/0]ospf timer hello 10
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