OSPF综合实验

zhangmengxin2003

已于 2023-07-25 17:41:23 修改

阅读量48

点赞数

CC 4.0 BY-SA版权

文章标签：网络服务器运维

于 2023-07-25 13:09:21 首次发布

本文链接：https://blog.youkuaiyun.com/zhangmengxin2003/article/details/131915499

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用IP

2.R3-R5/R6/R7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

子网划分

172.16.0.0 16

172.16.0.0 19——area 0

172.16.0.0 25

172.16.1.0 25

172.16.2.0 25

172.16.3.0 25

172.16.4.0 25

172.16.32.0 19

172.16.32.0 25——链路

172.16.33.0 25——area 1

172.16.34.0 25

172.16.35.0 25

172.16.64.0 19——area 2

172.16.96.0 19——area 3

172.16.128.0 19——area 4

172.16.160.0 19——rip

mgre环境下

R3 S4/0/0 34.1.1.3 24

R4 S4/0/0 34.1.1.4 24

R4 S4/0/1 45.1.1.5 24

R4 S3/0/0 46.1.1.6 24

R4 GE0/0/0 47.1.1.7 24

R5 S4/0/0 45.1.1.5 24

R6 S4/0/0 46.1.1.4 24

R7 GE0/0/0 47.1.1.4 24

R1配置

[R1]interface LoopBack 0

[R1-LoopBack0]ip ad

[R1-LoopBack0]ip address 172.16.33.1 25

[R1-LoopBack0]q

[R1]int

[R1]interface g 0/0/0

[R1-GigabitEthernet0/0/0]ip ad

[R1-GigabitEthernet0/0/0]ip address 172.16.32.1 25

R2配置

[R2]interface LoopBack 0

[R2-LoopBack0]ip ad

[R2-LoopBack0]ip address 172.16.34.1 25

[R2-LoopBack0]q

[R2]int

[R2]interface g 0/0/0

[R2-GigabitEthernet0/0/0]ip ad

[R2-GigabitEthernet0/0/0]ip address 172.16.32.2 25

R3配置

[R3-LoopBack0]ip address 172.16.35.1 25

[R3-LoopBack0]q

[R3]interface GigabitEthernet 0/0/0

[R3-GigabitEthernet0/0/0]ip ad

[R3-GigabitEthernet0/0/0]ip address 172.16.32.3 25

[R3-Serial4/0/0]ip address 34.1.1.3 24

R4配置

[R4-Serial4/0/0]ip address 34.1.1.4 24

[R4-Serial4/0/1]ip address 45.1.1.4 24

[R4-Serial3/0/0]ip address 46.1.1.4 24

[R4-GigabitEthernet0/0/0]ip address 47.1.1.4 24

[R4-LoopBack0]ip address 4.4.4.4 24

R5配置

[R5-Serial4/0/0]ip address 45.1.1.5 24

[R5]interface LoopBack 0

[R5-LoopBack0]ip ad

[R5-LoopBack0]ip address 172.16.1.1 25

R6配置

[R6-Serial4/0/0]ip address 46.1.1.6 24

[R6-LoopBack0]ip address 172.16.2.1 25

[R6-GigabitEthernet0/0/0]ip address 172.16.64.1 30

R7配置

[R7-GigabitEthernet0/0/0]ip address 47.1.1.4 24

[R7-LoopBack0]ip address 172.16.3.1 25

[R7-GigabitEthernet0/0/1]ip address 172.16.96.1 30

R8配置

[R8-GigabitEthernet0/0/0]ip address 172.16.96.2 30

[R8-LoopBack0]ip address 172.16.97.1 25

[R8-GigabitEthernet0/0/1]ip address 172.16.96.5 30

R9配置

[R9-GigabitEthernet0/0/0]ip address 172.16.96.6 30

[R9-LoopBack0]ip address 172.16.129.1 25

[R9-GigabitEthernet0/0/1]ip address 172.16.128.1 30

R10配置

[R10-LoopBack0]ip address 172.16.130.1 25

[R10-GigabitEthernet0/0/0]ip address 172.16.128.2 30

R11配置

[R11-LoopBack0]ip address 172.16.65.1 25

[R11-GigabitEthernet0/0/0]ip address 172.16.64.2 30

[R11-GigabitEthernet0/0/1]ip address 172.16.64.5 30

R12配置

[R12-GigabitEthernet0/0/0]ip address 172.16.64.6 30

[R12-LoopBack0]ip address 172.16.160.1 25

[R12-LoopBack1]ip address 172.16.161.1 25

第三步：配置缺省

[R3]ip route-static 0.0.0.0 0 34.1.1.4

[R5]ip route-static 0.0.0.0 0 45.1.1.4

[R6]ip route-static 0.0.0.0 0 46.1.1.4

[R7]ip route-static 0.0.0.0 0 47.1.1.4

第四步：NAT

第五步：R3-R5/R6/R7为MGRE环境，R3为中心站点

第六步：宣告OSPF

[R1]ospf 1 router-id 1.1.1.1

[R1-ospf-1]ar

[R1-ospf-1]area 1

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

[R1-ospf-1-area-0.0.0.1]network 172.16.0.0 0.0.255.255

[R2]ospf 1 router-id 2.2.2.2

[R2-ospf-1]ar

[R2-ospf-1]area 1

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

[R2-ospf-1-area-0.0.0.1]network 172.16.0.0 0.0.255.255

[R3]ospf 1 router-id 3.3.3.3

[R3-ospf-1]ar

[R3-ospf-1]area 1

[R3-ospf-1-area-0.0.0.1]ne

[R3-ospf-1-area-0.0.0.1]network 172.16.32.3 0.0.0.0

[R3-ospf-1-area-0.0.0.0]network 172.16.0.1 0.0.0.0

[R3-ospf-1-area-0.0.0.1]network 172.16.35.1 0.0.0.0

[R5]ospf 1 router-id 5.5.5.5

[R5-ospf-1]ar

[R5-ospf-1]area 0

[R5-ospf-1-area-0.0.0.0]ne

[R5-ospf-1-area-0.0.0.0]network 172.16.0.0 0.0.255.255

[R6]ospf 1 router-id 6.6.6.6

[R6-ospf-1]ar

[R6-ospf-1]area 0

[R6-ospf-1-area-0.0.0.0]ne

[R6-ospf-1-area-0.0.0.0]network 172.16.0.3 0.0.0.0

[R6-ospf-1-area-0.0.0.0]network 172.16.2.1 0.0.0.0

[R6-ospf-1-area-0.0.0.2]network 172.16.64.1 0.0.0.0

[R11-ospf-1-area-0.0.0.2]network 172.16.0.0 0.0.255.255

[R12]ospf 1 router-id 12.12.12.12

[R12-ospf-1]ar

[R12-ospf-1]area 2

[R12-ospf-1-area-0.0.0.2]ne

[R12-ospf-1-area-0.0.0.2]network 172.16.64.6 0.0.0.0

[R12]rip 1

[R12-rip-1]ver

[R12-rip-1]verify-source

[R12-rip-1]version 2

[R12-rip-1]ne

[R12-rip-1]network 172.16.0.0

[R7]ospf 1 router-id 7.7.7.7

[R7-ospf-1]ar

[R7-ospf-1]area 0

[R7-ospf-1-area-0.0.0.0]ne

[R7-ospf-1-area-0.0.0.0]network 172.16.0.4 0.0.0.0

[R7-ospf-1-area-0.0.0.0]network 172.16.3.1 0.0.0.0

[R7-ospf-1]area 3

[R7-ospf-1-area-0.0.0.3]ne

[R7-ospf-1-area-0.0.0.3]network 172.16.96.1 0.0.0.0

[R8]ospf 1 router-id 8.8.8.8

[R8-ospf-1]ar

[R8-ospf-1]area 3

[R8-ospf-1-area-0.0.0.3]ne

[R8-ospf-1-area-0.0.0.3]network 172.16.0.0 0.0.255.255

[R9]ospf 1 router-id 9.9.9.9

[R9-ospf-1]ar

[R9-ospf-1]area 3

[R9-ospf-1-area-0.0.0.3]ne

[R9-ospf-1-area-0.0.0.3]network 172.16.96.6 0.0.0.0

[R9-ospf-1]area 4

[R9-ospf-1-area-0.0.0.4]ne

[R9-ospf-1-area-0.0.0.4]network 172.16.128.1 0.0.0.0

[R9-ospf-1-area-0.0.0.4]ne

[R9-ospf-1-area-0.0.0.4]network 172.16.129.1 0.0.0.0

[R10]ospf 1 router-id 10.10.10.10

[R10-ospf-1]ar

[R10-ospf-1]area 4

[R10-ospf-1-area-0.0.0.4]ne

[R10-ospf-1-area-0.0.0.4]network 172.16.0.0 0.0.255.255

第七步：更改网络类型

[R3-Tunnel0/0/0]ospf network-type broadcast

[R5-Tunnel0/0/0]ospf network-type broadcast

[R5-Tunnel0/0/0]ospf dr-priority 0

[R6-Tunnel0/0/0]ospf network-type broadcast

[R6-Tunnel0/0/0]ospf dr-priority 0

[R7-Tunnel0/0/0]ospf network-type broadcast

[R7-Tunnel0/0/0]ospf dr-priority 0

第八步：重发布

[R9-ospf-1-area-0.0.0.4]undo network 172.16.128.1 0.0.0.0

[R9-ospf-1-area-0.0.0.4]undo network 172.16.129.1 0.0.0.0

[R9-ospf-1]undo area 4

[R9-ospf-2]area 4

[R9-ospf-2-area-0.0.0.4]ne

[R9-ospf-2-area-0.0.0.4]network 172.16.128.1 0.0.0.0

[R9-ospf-2-area-0.0.0.4]network 172.16.129.1 0.0.0.0

[R9-ospf-1]import-route ospf 2

[R12]ospf 1

[R12-ospf-1]im

[R12-ospf-1]import-route r

[R12-ospf-1]import-route rip

第九步：减少LSA的数量

区域1

[R3]ospf 1

[R3-ospf-1]ar

[R3-ospf-1]arp-ping

[R3-ospf-1]area 1

[R3-ospf-1-area-0.0.0.1]abr

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

区域2

[R6]ospf 1

[R6-ospf-1]ar

[R6-ospf-1]arp-ping

[R6-ospf-1]area 2

[R6-ospf-1-area-0.0.0.2]ab

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

区域3

[R7]ospf 1

[R7-ospf-1]ar

[R7-ospf-1]arp-ping

[R7-ospf-1]area 3

[R7-ospf-1-area-0.0.0.3]ab

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

域外路由汇总

[R9]ospf 1

[R9-ospf-1]as

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

[R12]ospf 1

[R12-ospf-1]as

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

末梢区域

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

[R2-ospf-1]area 1

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

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

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

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

[R6]ospf 1

[R6-ospf-1]ar

[R6-ospf-1]arp-ping

[R6-ospf-1]area 2

[R6-ospf-1-area-0.0.0.2]ns

[R6-ospf-1-area-0.0.0.2]nssa

R11-ospf-1-area-0.0.0.2]nssa

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

[R6-ospf-1-area-0.0.0.2]nssa no-import-route

[R7]ospf 1

[R7-ospf-1]ar

[R7-ospf-1]arp-ping

[R7-ospf-1]area 3

[R7-ospf-1-area-0.0.0.3]nss

[R7-ospf-1-area-0.0.0.3]nssa

[R8]ospf 1

[R8-ospf-1]ar

[R8-ospf-1]arp-ping

[R8-ospf-1]area 3

[R8-ospf-1-area-0.0.0.3]nss

[R8-ospf-1-area-0.0.0.3]nssa

[R9]ospf 1

[R9-ospf-1]ar

[R9-ospf-1]arp-ping

[R9-ospf-1]area 3

[R9-ospf-1-area-0.0.0.3]nss

[R9-ospf-1-area-0.0.0.3]nssa

[R7-ospf-1-area-0.0.0.3]nssa no-import-route

测试：

配置空接口，配置防环

[R3]ip route-static 172.16.32.0 19 NULL 0

[R6]ip route-static 172.16.64.0 19 NULL 0

[R7]ip route-static 172.16.96.0 19 NULL 0

[R9]ip route-static 172.16.128.0 19 NULL 0

[R12]ip route-static 172.16.160.0 19 NULL 0

加快收敛

[R3]interface Tunnel 0/0/0

[R3-Tunnel0/0/0]os

[R3-Tunnel0/0/0]ospf t

[R3-Tunnel0/0/0]ospf trans-delay

[R3-Tunnel0/0/0]ospf timer h

[R3-Tunnel0/0/0]ospf timer hello 5

[R5]interface Tunnel 0/0/0

[R5-Tunnel0/0/0]os

[R5-Tunnel0/0/0]ospf t

[R5-Tunnel0/0/0]ospf trans-delay

[R5-Tunnel0/0/0]ospf timer h

[R5-Tunnel0/0/0]ospf timer hello 5

[R6]interface Tunnel 0/0/0

[R6-Tunnel0/0/0]os

[R6-Tunnel0/0/0]ospf t

[R6-Tunnel0/0/0]ospf trans-delay

[R6-Tunnel0/0/0]ospf timer h

[R6-Tunnel0/0/0]ospf timer hello 5

[R7]interface Tunnel 0/0/0

[R7-Tunnel0/0/0]os

[R7-Tunnel0/0/0]ospf t

[R7-Tunnel0/0/0]ospf trans-delay

[R7-Tunnel0/0/0]ospf timer h

[R7-Tunnel0/0/0]ospf timer hello 5

保障更新安全

[R3-ospf-1-area-0.0.0.1]authentication-mode md5 1 cipher 123456

[R2-ospf-1-area-0.0.0.1]authentication-mode md5 1 cipher 123456

[R1-ospf-1-area-0.0.0.1]authentication-mode md5 1 cipher 123456

[R6-ospf-1-area-0.0.0.2]authentication-mode md5 1 cipher 234567

[R11-ospf-1-area-0.0.0.2]authentication-mode md5 1 cipher 234567

[R12-ospf-1-area-0.0.0.2]authentication-mode md5 1 cipher 234567

[R7-ospf-1-area-0.0.0.3]authentication-mode md5 1 cipher 345678

[R8-ospf-1-area-0.0.0.3]authentication-mode md5 1 cipher 345678

[R9-ospf-1-area-0.0.0.3]authentication-mode md5 1 cipher 345678

全网可达