OSPF综合应用实验

YZ0406280703

于 2024-07-14 23:53:02 发布

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文章标签：网络

本文链接：https://blog.youkuaiyun.com/YZ0406280703/article/details/140423208

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拓扑结构：

网络要求：

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

网络配置：

接口配置：

R1：

[r1]interface GigabitEthernet 0/0/0

[r1-GigabitEthernet0/0/0]ip address 172.16.33.1 29

[r1]interface LoopBack 0

[r1-LoopBack0]ip address 172.16.34.1 24

R2：

[r2]interface GigabitEthernet 0/0/0

[r2-GigabitEthernet0/0/0]ip address 172.16.33.2 29

[r2]interface LoopBack 0

[r2-LoopBack0]ip address 172.16.35.1 24

R3：

[r3]interface Serial 4/0/0

[r3-Serial4/0/0]ip address 43.0.0.1 24

[r3]ip route-static 0.0.0.0 0 43.0.0.2

[r3]interface GigabitEthernet 0/0/0

[r3-GigabitEthernet0/0/0]ip address 172.16.33.3 29

[r3]interface LoopBack 0

[r3-LoopBack0]ip address 172.16.36.1 24

R4：

[isp]interface Serial 4/0/0

[isp-Serial4/0/0]ip address 43.0.0.2 24

[isp]interface Serial 4/0/1

[isp-Serial4/0/1]ip address 45.0.0.2 24

[isp]interface Serial 3/0/0

[isp-Serial3/0/0]ip address 46.0.0.2 24

[isp]interface GigabitEthernet 0/0/0

[isp-GigabitEthernet0/0/0]ip address 47.0.0.2 24

[isp]interface l
[isp]interface LoopBack 0

[isp-LoopBack0]ip address 100.0.0.1 24

R5：

[r5]interface Serial 4/0/0

[r5-Serial4/0/0]ip address 45.0.0.1 24

[r5]ip route-static 0.0.0.0 0 45.0.0.2

[r5]interface LoopBack 0

[r5-LoopBack0]ip address 172.16.2.1 24

R6：

[r6]interface Serial 4/0/0

[r6-Serial4/0/0]ip address 46.0.0.1 24

[r6]ip route-static 0.0.0.0 0 46.0.0.2

[r6]interface LoopBack 0

[r6-LoopBack0]ip address 172.16.3.1 24

[r6]interface GigabitEthernet 0/0/0

[r6-GigabitEthernet0/0/0]ip address 172.16.64.1 30

R7：

[r7]interface GigabitEthernet 0/0/0

[r7-GigabitEthernet0/0/0]ip address 47.0.0.1 24

[r7]ip route-static 0.0.0.0 0 47.0.0.2

[r7]interface LoopBack 0

[r7-LoopBack0]ip address 172.16.4.1 24

[r7]interface GigabitEthernet 0/0/1

[r7-GigabitEthernet0/0/1]ip address 172.16.96.1 30

R8：

[r8]interface GigabitEthernet 0/0/0

[r8-GigabitEthernet0/0/0]ip address 172.16.96.2 30

[r8]interface GigabitEthernet 0/0/1

[r8-GigabitEthernet0/0/1]ip address 172.16.96.5 30

[r8]interface LoopBack 0

[r8-LoopBack0]ip address 172.16.98.1 24

R9：

[r9]interface GigabitEthernet 0/0/0

[r9-GigabitEthernet0/0/0]ip address 172.16.96.6 30

[r9]interface GigabitEthernet 0/0/1

[r9-GigabitEthernet0/0/1]ip address 172.16.128.1 30

[r9]interface LoopBack 0

[r9-LoopBack0]ip address 172.16.130.1 24

R10：

[r10]interface GigabitEthernet 0/0/0

[r10-GigabitEthernet0/0/0]ip address 172.16.128.2 30

[r10]interface LoopBack 0

[r10-LoopBack0]ip address 172.16.131.1 24

R11：

[r11]interface GigabitEthernet 0/0/0

[r11-GigabitEthernet0/0/0]ip address 172.16.64.2 30

[r11]interface GigabitEthernet 0/0/1

[r11-GigabitEthernet0/0/1]ip address 172.16.64.5 30

[r11]interface LoopBack 0

[r11-LoopBack0]ip address 172.16.66.1 24

R12：

[r12]interface GigabitEthernet 0/0/0

[r12-GigabitEthernet0/0/0]ip address 172.16.64.6 30

[r12]interface LoopBack 0

[r12-LoopBack0]ip address 172.16.160.1 24

[r12]interface LoopBack 1

[r12-LoopBack1]ip address 172.16.161.1 24

使用NAT，使得全网通，能够访问ISP的环路

[r3]acl 2000

[r3-acl-basic-2000]rule permit s 172.16.0.0 0.0.255.255

[r3-Serial4/0/0]nat outbound 2000

MGRE配置：

R3（中心站点）：

[r3]interface Tunnel 0/0/0

[r3-Tunnel0/0/0]ip address 172.16.1.1 29

[r3-Tunnel0/0/0]tunnel-protocol gre p2mp

[r3-Tunnel0/0/0]source 43.0.0.1

[r3-Tunnel0/0/0]nhrp network-id 100

[r3-Tunnel0/0/0]nhrp entry multicast dynamic

R5（分支）：

[r5]interface Tunnel 0/0/0

[r5-Tunnel0/0/0]ip address 172.16.1.2 29

[r5-Tunnel0/0/0]tunnel-protocol gre p2mp

[r5-Tunnel0/0/0]source 45.0.0.1

[r5-Tunnel0/0/0]nhrp network-id 100

[r5-Tunnel0/0/0]nhrp entry 172.16.1.1 43.0.0.1 register

其他分支类似

OSPF配置：

R7：

[r7]ospf 1 router-id 7.7.7.7

[r7-ospf-1]area 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]network 172.16.4.1 0.0.0.0

[r7-ospf-1]area 3

[r7-ospf-1-area-0.0.0.3]network 172.16.96.1 0.0.0.0

[r7]interface Tunnel 0/0/0

[r7-Tunnel0/0/0]ospf network-type p2mp

R12：

[r12]rip

[r12-rip-1]network 172.16.0.0

[r12]ospf 1 router-id 12.1.1.1

[r12-ospf-1]area 2

[r12-ospf-1-area-0.0.0.2]network 172.16.64.0 0.0.31.255

[r12]ospf

[r12-ospf-1]import-route rip

为了解决不规则区域，采用的是多进程双向重发布

R9：

[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