OSPF综合实验

2024-04-21 00:26:07
开发
14

1、R4为ISP，其上只配置IP地址；R4与其他所直连设备间均使用公有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；除了R12有两个环回，其他路由器均有一个环回IP
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；

配置IP

[R1-GigabitEthernet0/0/0]ip add 172.16.33.1 24

[R2-GigabitEthernet0/0/0]ip add 172.16.33.2 24

[R3-GigabitEthernet0/0/0]ip add 172.16.33.3 24

[R3-Serial4/0/0]ip add 34.0.0.3 24

[R4-GigabitEthernet0/0/0]ip add 47.0.0.4 24

[R4-Serial3/0/0]ip add 46.0.0.4 24

[R4-Serial4/0/1]ip add 45.0.0.4 24

[R4-Serial4/0/0]ip add 34.0.0.4 24

[R5-Serial4/0/0]ip add 45.0.0.5 24

[R6-Serial4/0/0]ip add 46.0.0.6 24

[R6-GigabitEthernet0/0/0]ip add 172.16.65.1 30

[R7-GigabitEthernet0/0/0]ip add 47.0.0.7 24

[R7-GigabitEthernet0/0/1]ip add 172.16.97.1 30

[R8-GigabitEthernet0/0/0]ip add 172.16.97.2 30

[R8-GigabitEthernet0/0/1]ip add 172.16.97.5 30

[R9-GigabitEthernet0/0/0]ip add 172.16.97.6 30

[R9-GigabitEthernet0/0/1]ip add 172.16.129.1 30

[R10-GigabitEthernet0/0/0]ip add 172.16.129.2 30

[R11-GigabitEthernet0/0/0]ip add 172.16.65.2 30

[R11-GigabitEthernet0/0/1]ip add 172.16.65.5 30

[R12-GigabitEthernet0/0/0]ip add 172.16.65.6 30

配置环回

[R1-LoopBack0]ip add 172.16.34.1 24

[R2-LoopBack0]ip add 172.16.35.2 24

[R3-LoopBack0]ip add 172.16.36.3 24

[R4-LoopBack0]ip add 172.16.2.4 24

[R5-LoopBack0]ip add 172.16.3.5 24

[R6-LoopBack0]ip add 172.16.4.6 24

[R7-LoopBack0]ip add 172.16.5.7 24

[R8-LoopBack0]ip add 172.16.98.8 24

[R9-LoopBack0]ip add 172.16.130.9 24

[R10-LoopBack0]ip add 172.16.131.10 24

[R11-LoopBack0]ip add 172.16.66.11 24

[R12-LoopBack0]ip add 172.16.160.12 24

[R12-LoopBack1]ip add 172.16.161.12 24

配置公网通

[R3]ip route-static 0.0.0.0 0 34.0.0.4

[R5]ip route-static 0.0.0.0 0 45.0.0.4

[R6]ip route-static 0.0.0.0 0 46.0.0.4

[R7]ip route-static 0.0.0.0 0 47.0.0.4

测试

配置各个区域私网通

[R1-ospf-1-area-0.0.0.0]network 172.16.33.0 0.0.0.255
[R1-ospf-1-area-0.0.0.0]network 172.16.34.0 0.0.0.255

[R2-ospf-1-area-0.0.0.0]net 172.16.33.0 0.0.0.255

[R2-ospf-1-area-0.0.0.0]net 172.16.35.0 0.0.0.255

[R3-ospf-1-area-0.0.0.0]net 172.16.33.0 0.0.0.255

[R3-ospf-1-area-0.0.0.0]net 172.16.36.0 0.0.0.255

[R5-ospf-1-area-0.0.0.0]net 172.16.3.0 0.0.0.255

[R6-ospf-1-area-0.0.0.0]net 172.16.4.0 0.0.0.255

[R6-ospf-1-area-0.0.0.2]net 172.16.65.0 0.0.0.255

[R7-ospf-1-area-0.0.0.0]net 172.16.5.0 0.0.0.255

[R7-ospf-1-area-0.0.0.3]net 172.16.97.0 0.0.0.255

[R8-ospf-1-area-0.0.0.3]net 172.16.97.0 0.0.0.255

[R8-ospf-1-area-0.0.0.3]net 172.16.97.4 0.0.0.255
[R8-ospf-1-area-0.0.0.3]net 172.16.98.0 0.0.0.255

[R9-ospf-1-area-0.0.0.3]net 172.16.97.6 0.0.0.0

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

[R9-ospf-2-area-0.0.0.4]net 172.16.130.0 0.0.0.255

[R10-ospf-2-area-0.0.0.4]net 0.0.0.0 255.255.255.255

[R11-ospf-1-area-0.0.0.2]net 172.16.65.0 0.0.0.255

[R11-ospf-1-area-0.0.0.2]net 172.16.65.4 0.0.0.255
[R11-ospf-1-area-0.0.0.2]net 172.16.66.0 0.0.0.255

[R12-ospf-1-area-0.0.0.2]net 172.16.65.4 0.0.0.255

[R12-rip-1]undo summary
[R12-ospf-1]import-route rip

测试

R11

配置隧道口

[R3]int Tunnel 0/0/0
[R3-Tunnel0/0/0]ip add 172.16.6.3 24

[R3-Tunnel0/0/0]tunnel-protocol gre p2mp

[R3-Tunnel0/0/0]source s4/0/0（封装公网接口的地址）

[R3-Tunnel0/0/0]nhrp network-id 100（创建nhrp域）

[R3-Tunnel0/0/0]nhrp entry multicast dynamic

[R5-Tunnel0/0/0]ip add 172.16.6.5 24
[R5-Tunnel0/0/0]tunnel-protocol gre p2mp
[R5-Tunnel0/0/0]source s4/0/1

[R5-Tunnel0/0/0]nhrp network-id 100
[R5-Tunnel0/0/0]nhrp entry 172.16.6.3 34.0.0.3 register

[R6]int Tunnel 0/0/0
[R6-Tunnel0/0/0]ip add 172.16.6.6 24
[R6-Tunnel0/0/0]tunnel-protocol gre p2mp
[R6-Tunnel0/0/0]source s4/0/0

[R6-Tunnel0/0/0]nhrp network-id 100
[R6-Tunnel0/0/0]nhrp entry 172.16.6.3 34.0.0.3 register

[R7]int Tunnel 0/0/0
[R7-Tunnel0/0/0]ip add 172.16.6.7 24
[R7-Tunnel0/0/0]tunnel-protocol gre p2mp
[R7-Tunnel0/0/0]source g0/0/0

[R7-Tunnel0/0/0]nhrp network-id 100
[R7-Tunnel0/0/0]nhrp entry 172.16.6.3 34.0.0.3 register

宣告隧道口

[R3-ospf-1]a 0
[R3-ospf-1-area-0.0.0.0]ne 172.16.6.0 0.0.0.255

[R5-ospf-1]a 0
[R5-ospf-1-area-0.0.0.0]ne 172.16.6.0 0.0.0.255

[R6-ospf-1]a 0
[R6-ospf-1-area-0.0.0.0]ne 172.16.6.0 0.0.0.255

[R7-ospf-1]a 0
[R7-ospf-1-area-0.0.0.0]ne 172.16.6.0 0.0.0.255

修改接口类型

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

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

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

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

取消分支站点选举资格

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

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

[R7Tunnel0/0/0]ospf dr-priority 0

查看邻居关系

路由引入

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

测试是否全网通

使所有设备均可访问R4的环回

[R3-acl-basic-2000]rule permit source 172.16.0.0 0.0.255.255

[R3-Serial4/0/0]nat outbound 2000

[R5-acl-basic-2000]rule permit source 172.16.0.0 0.0.255.255
[R5-Serial4/0/0]nat outbound 2000

[R6-acl-basic-2000]rule permit source 172.16.0.0 0.0.255.255
[R6-Serial4/0/0]nat outbound 2000

[R7-acl-basic-2000]rule permit source 172.16.0.0 0.0.255.255
[R7-GigabitEthernet0/0/0]nat outbound 2000

路由聚合

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

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

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

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

查看路由表

精简路由表

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

[R2-ospf-1-area-0.0.0.1]stub no-summary

[R1-ospf-1-area-0.0.0.1]stub no-summary

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

[R11-ospf-1-area-0.0.0.2]nssa no-summary

[R12-ospf-1-area-0.0.0.2]nssa no-summary

[R7-ospf-1-area-0.0.0.3]nssa no-summary

[R8-ospf-1-area-0.0.0.3]nssa no-summary

[R9-ospf-1-area-0.0.0.3]nssa no-summary

查看路由表

测试能否ping通

在R9手动下发缺省

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

测试能否ping通R4 的环回

加快收敛速度

[AR1-GigabitEthernet0/0/0]ospf timer hello 5

[AR2-GigabitEthernet0/0/0]ospf timer hello 5
[AR3-GigabitEthernet0/0/0]ospf timer hello 5

[AR6-GigabitEthernet0/0/0]ospf timer hello 5
[AR11-GigabitEthernet0/0/0]ospf timer hello 5
[AR11-GigabitEthernet0/0/1]ospf timer hello 5

[AR7-GigabitEthernet0/0/1]ospf timer hello 5
[AR8-GigabitEthernet0/0/0]ospf timer hello 5
[AR8-GigabitEthernet0/0/1]ospf timer hello 5
[AR9-GigabitEthernet0/0/0]ospf timer hello 5

[AR9-GigabitEthernet0/0/1]ospf timer hello 5
[AR10-GigabitEthernet0/0/0]ospf timer hello 5

再测试全网通

保证更新安全

[R1]ospf 1
[R1-ospf-1]a 1
[R1-ospf-1-area-0.0.0.1]authentication-mode md5 1 cipher 12345
[R2]ospf 1
[R2-ospf-1]a 1
[R2-ospf-1-area-0.0.0.1]authentication-mode md5 1 cipher 12345
[R3]ospf 1
[R3-ospf-1]a 1
[R3-ospf-1-area-0.0.0.1]authentication-mode md5 1 cipher 12345

[R6]ospf 1
[R6-ospf-1]a 2
[R6-ospf-1-area-0.0.0.2]authentication-mode md5 1 cipher 12345
[R11]ospf 1
[R11-ospf-1]a 2
[R11-ospf-1-area-0.0.0.2]authentication-mode md5 1 cipher 12345
[R12]ospf 1
[R12-ospf-1]a 2
[R12-ospf-1-area-0.0.0.2]authentication-mode md5 1 cipher 12345

[R7]ospf 1
[R7-ospf-1]a 3
[R7-ospf-1-area-0.0.0.3]authentication-mode md5 1 cipher 12345
[R8]ospf 1
[R8-ospf-1]a 3
[R8-ospf-1-area-0.0.0.3]authentication-mode md5 1 cipher 12345
[R9]ospf 1
[R9-ospf-1]a 3
[R9-ospf-1-area-0.0.0.3]authentication-mode md5 1 cipher 12345

[R9]ospf 1
[R9-ospf-1]a 4
[R9-ospf-1-area-0.0.0.4]authentication-mode md5 1 cipher 12345
[R10]ospf 1
[R10-ospf-1]a 4
[R10-ospf-1-area-0.0.0.4]authentication-mode md5 1 cipher 12345

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OSPF综合实验

使所有设备均可访问R4的环回

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