HCIP第六天_特殊区域综合实验

最新推荐文章于 2025-05-01 14:20:21 发布

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最新推荐文章于 2025-05-01 14:20:21 发布

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文章标签：网络网络协议

本文链接：https://blog.youkuaiyun.com/weiaibudu/article/details/125950636

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实验配置了一个OSPF网络，包括R4作为ISP，R3为中心站点的MGRE环境，采用地址汇总优化LSA更新。所有设备能访问R4的环回，实现全网可达。配置涉及OSPF区域划分、默认路由、NAT、MGRE隧道、特殊区域设定等，并进行了全网可达性验证。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

1、实验需求

1、R4为ISP，其上只能配置IP地址，R4与其他所有直连设备间使用公有IP；
2、R3/5/6/7为MGRE环境，R3为中心站点
3、整个OSPF环境IP地址为172.16.0.0/16
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

2、实验拓扑

3、分析过程

1、地址的分配——路由具体分配可以去看拓扑图

172.16.0.0/16

172.16.0.0/19 area0

172.16.32.0/19 area1
172.16.32.0/21
172.16.40.0/21
172.16.48.0/21
172.16.56.0/21

172.16.64.0/19 area2
172.16.64.0/21
172.16.72.0/21
172.16.80.0/21
172.16.88.0/21

172.16.96.0/19 area 3
172.16.96.0/21
172.16.104.0/21
172.16.112.0/21
172.16.120.0/21

172.16.128.0/19 area 4
172.16.128.0/21
172.16.136.0/21
172.16.144.0/21
172.16.152.0/21

172.16.160.0/19 RIP
172.16.160.0/20
172.16.176.0/20
172.16.192.0/19
172.16.224.0/19

2、配置–IP地址
3、缺省路由+NAT
4、MGRE环境配置
5、OSPF协议
6、重发步——在ASBR上面配置
7、域间路由汇总、域外路由汇总——分别在ABR和ASBR上配置
8、空接口防环路由——在黑洞路由上配置
9、特殊区域——area1可以设置为完全末梢区域，area2和area3可以设置为完全NSSA区域
10、更改hello时间
11、OSPF认证
12、测试全网可达

4、配置内容

[r1]int g 0/0/0
[r1-GigabitEthernet0/0/0]ip add 172.16.56.1 21
[r1-GigabitEthernet0/0/0]int l0
[r1-LoopBack0]ip add 172.16.32.1 21
[r1]ospf 1
[r1-ospf-1]area 1
[r1-ospf-1-area-0.0.0.1]network 172.16.32.0 0.0.31.255
[r1-ospf-1-area-0.0.0.1]stub

[r2]int l0
[r2-LoopBack0]ip add 172.16.40.1 21
[r2-LoopBack0]int g 0/0/0
[r2]ospf 1
[r2-ospf-1]area 1
[r2-ospf-1-area-0.0.0.1]network 172.16.32.0 0.0.31.255
[r2-ospf-1-area-0.0.0.1]stub

[r3]int g0/0/0
[r3-GigabitEthernet0/0/0]ip add 172.16.56.3 21
[r3-GigabitEthernet0/0/0]in l0
[r3-LoopBack0]ip add 172.16.48.1 21
[r3]int s 4/0/0
[r3-Serial4/0/0]ip add 34.1.1.3 24
[r3]ip route-static 0.0.0.0 0 34.1.1.4
[r3]acl 2000
[r3-acl-basic-2000]rule permit source any
[r3]int Serial 4/0/0
[r3-Serial4/0/0]nat outbound 2000
[r3]int Tunnel 0/0/0
[r3-Tunnel0/0/0]ip add 10.1.1.1 24
[r3-Tunnel0/0/0]tunnel-protocol gre p2mp
[r3-Tunnel0/0/0]nhrp entry multicast dynamic
[r3-Tunnel0/0/0]nhrp network-id 100
[r3]ospf 1 router-id 3.3.3.3
[r3-ospf-1]area 1
[r3-ospf-1-area-0.0.0.1]ne
[r3-ospf-1-area-0.0.0.1]network 172.16.32.0 0.0.31.255
[r3-ospf-1]area 0
[r3-ospf-1-area-0.0.0.0]network 10.1.1.0 0.0.0.255
[r3-ospf-1-area-0.0.0.0]network 172.16.0.0 0.0.31.255
[r3]interface Tunnel 0/0/0
[r3-Tunnel0/0/0]ospf network-type broadcast
[r3-ospf-1]default-route-advertise
[r3]ospf 1
[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
[r3-ospf-1]area 0
[r3-ospf-1-area-0.0.0.0]abr
[r3-ospf-1-area-0.0.0.0]abr-summary 172.16.0.0 255.255.224.0
[r3]ospf 1
[r3-ospf-1]area 1
[r3-ospf-1-area-0.0.0.1]stub
[r3-ospf-1-area-0.0.0.1]stub no-summary

[ISP]int Serial 3/0/0
[ISP-Serial3/0/0]ip add 34.1.1.4 24
[ISP-Serial3/0/0]int s3/0/1
[ISP-Serial3/0/1]ip add 54.1.1.4 24
[ISP-Serial3/0/1]int s4/0/0
[ISP-Serial4/0/0]ip add 64.1.1.4 24
[ISP-Serial4/0/0]int s4/0/1
[ISP-Serial4/0/1]ip add 74.1.1.4 24
[ISP-Serial4/0/1]int l0
[ISP-LoopBack0]ip add 4.4.4.4 24

[r5]int s4/0/0
[r5-Serial4/0/0]ip add 54.1.1.5 24
[r5-Serial4/0/0]int l0
[r5-LoopBack0]ip add 172.16.0.1 21
[r5]ip route-static 0.0.0.0 0 54.1.1.4
[r5]acl 2000
[r5-acl-basic-2000]rule permit source any
[r5-acl-basic-2000]q
[r5]int s4/0/0
[r5-Serial4/0/0]nat out 2000
[r5]int Tunnel 0/0/0
[r5-Tunnel0/0/0]ip add 10.1.1.5 24
[r5-Tunnel0/0/0]tunnel-protocol gre p2mp
[r5-Tunnel0/0/0]nhrp entry 10.1.1.3 34.1.1.3 register
[r5-Tunnel0/0/0]nhrp network-id 100
[r5-Tunnel0/0/0]source Serial4/0/0
[r5]ospf 1 router-id 5.5.5.5
[r5-ospf-1]area 0
[r5-ospf-1-area-0.0.0.0]network 172.16.0.0 0.0.31.255
[r5-ospf-1-area-0.0.0.0]network 10.1.1.0 0.0.0.255
[r5]int Tunnel 0/0/0
[r5-Tunnel0/0/0]ospf network-type broadcast
[r5-Tunnel0/0/0]ospf dr-priority 0

[r6]int s4/0/0
[r6-Serial4/0/0]ip add 64.1.1.6 24
[r6-Serial4/0/0]int l0
[r6-LoopBack0]ip add 172.16.8.1 21
[r6-LoopBack0]int s4/0/1
[r6-Serial4/0/1]ip add 172.16.72.6 21
[r6]ip route-static 0.0.0.0 0 64.1.1.4
[r6]acl 2000
[r6-acl-basic-2000]rule permit source any
[r6-acl-basic-2000]q
[r6]int s4/0/0
[r6-Serial4/0/0]nat out 2000
[r6]int Tunnel 0/0/0
[r6-Tunnel0/0/0]ip add 10.1.1.6 24
[r6-Tunnel0/0/0]tunnel-protocol gre p2mp
[r6-Tunnel0/0/0]nhrp entry 10.1.1.3 34.1.1.3 register
[r6-Tunnel0/0/0]nhrp network-id 100
[r6-Tunnel0/0/0]source Serial4/0/0
[r6]ospf 1 router-id 6.6.6.6
[r6-ospf-1]area 0
[r6-ospf-1-area-0.0.0.0]network 172.16.0.0 0.0.31.255
[r6-ospf-1-area-0.0.0.0]network 10.1.1.0 0.0.0.255
[r6]int Tunnel 0/0/0
[r6-Tunnel0/0/0]ospf network-type broadcast
[r6-Tunnel0/0/0]ospf dr-priority 0
[r6]ospf 1
[r6-ospf-1]area 0
[r6-ospf-1-area-0.0.0.0]abr-summary 172.16.0.0 255.255.224.0
[r6-ospf-1-area-0.0.0.0]q
[r6-ospf-1]area 2
[r6-ospf-1-area-0.0.0.2]abr-summary 172.16.64.0 255.255.224.0
[r12]ospf 1
[r12-ospf-1]area 2
[r6-ospf-1-area-0.0.0.2]nssa
[r6-ospf-1-area-0.0.0.2]nssa no-summary

[r7]int s4/0/1
[r7-Serial4/0/1]ip add 74.1.1.7 24
[r7-Serial4/0/1]int s4/0/1
[r7-Serial4/0/1]ip add 172.16.104.7 21
[r7-Serial4/0/1]int l0
[r7-LoopBack0]ip add 172.16.16.1 21
[r7]ip route-static 0.0.0.0 0 74.1.1.4
[r7]acl 2000
[r7-acl-basic-2000]rule permit source any
[r7-acl-basic-2000]q
[r7]int s4/0/0
[r7-Serial4/0/0]nat out 2000
[r7]int Tunnel 0/0/0
[r7-Tunnel0/0/0]ip add 10.1.1.7 24
[r7-Tunnel0/0/0]tunnel-protocol gre p2mp
[r7-Tunnel0/0/0]nhrp entry 10.1.1.3 34.1.1.3 register
[r7-Tunnel0/0/0]nhrp network-id 100
[r7-Tunnel0/0/0]source Serial4/0/0
[r7]ospf 1 router-id 7.7.7.7
[r7-ospf-1]area 0
[r7-ospf-1-area-0.0.0.0]network 172.16.0.0 0.0.31.255
[r7-ospf-1-area-0.0.0.0]network 10.1.1.0 0.0.0.255
[r7]int Tunnel 0/0/0
[r7-Tunnel0/0/0]ospf network-type broadcast
[r7-Tunnel0/0/0]ospf dr-priority 0
[r7]ospf 1
[r7-ospf-1]area 0
[r7-ospf-1-area-0.0.0.0]abr-summary 172.16.0.0 255.255.224.0
[r7-ospf-1-area-0.0.0.0]q
[r7-ospf-1]area 3
[r7-ospf-1-area-0.0.0.3]abr-summary 172.16.96.0 255.255.224.0
[r7]ospf 1
[r7-ospf-1]area 3
[r7-ospf-1-area-0.0.0.3]nssa
[r7-ospf-1-area-0.0.0.3]nssa no-summary

[r8-Serial4/0/0]int s 4/0/1
[r8-Serial4/0/1]ip add 172.16.112.8 21
[r8-Serial4/0/1]int s4/0/0
[r8-Serial4/0/0]ip add 172.16.104.8 21
[r8]int l0
[r8-LoopBack0]ip add 172.16.96.1 21
[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
[r8]ospf 1
[r8-ospf-1]area 3
[r8-ospf-1-area-0.0.0.3]nssa

[r9]int s4/0/1
[r9-Serial4/0/1]ip add 172.16.112.9 21
[r9-Serial4/0/1]int s 4/0/0
[r9-Serial4/0/0]ip add 172.16.144.9 21
[r9-Serial4/0/0]int l0
[r9-LoopBack0]ip add 172.16.128.1 21
[r9]ospf 1 router-id 9.9.9.9
[r9-ospf-1]import-route ospf 2
[r9-ospf-1]area 3
[r9-ospf-1-area-0.0.0.3]network 172.16.96.0 0.0.31.255
[r9]ospf 2
[r9-ospf-2]import-route ospf 1
[r9-ospf-2-area-0.0.0.0]network 172.16.128.0 0.0.31.255
[r9]ospf 1
[r9-ospf-1]asbr-summary 172.16.128.0 255.255.224.0
[r9]ospf 1
[r9-ospf-1]area 3
[r9-ospf-1-area-0.0.0.3]nssa
[r3-ospf-1]default-route-advertise

R10

[r10]int s4/0/0
[r10-Serial4/0/0]ip add 172.16.144.10 21
[r10-Serial4/0/0]int l0
[r10-LoopBack0]ip add 172.16.136.1 21
[r10]ospf 1 router-id 10.10.10.10
[r10-ospf-1]area 0
[r10-ospf-1-area-0.0.0.0]network 172.16.128.0 0.0.31.255

R11

[r11]int s4/0/0
[r11-Serial4/0/0]ip ad 172.16.72.11 21
[r11-Serial4/0/0]int s 4/0/1
[r11-Serial4/0/1]ip add 172.16.80.11 21
[r11-Serial4/0/1]int l0
[r11-LoopBack0]ip add 172.16.64.1 21
[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
[r11]ospf 1
[r11-ospf-1]area 2
[r11-ospf-1-area-0.0.0.2]nssa

R12

[r12]int s4/0/0
[r12-Serial4/0/0]ip add 172.16.80.12 21
[r12-Serial4/0/0]int l0
[r12-LoopBack0]ip add 172.16.160.1 20
[r12-LoopBack0]int l1
[r12-LoopBack1]ip add 172.16.176.1 20
[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
[r12-ospf-1]import-route rip 1
[r12]rip 1
[r12-rip-1]version 2
[r12-rip-1]network 172.16.0.0
[r12]ospf 1
[r12-ospf-1]asbr-summary 172.16.160.0 255.255.224.0
[r12]ospf 1
[r12-ospf-1]area 2
[r12-ospf-1-area-0.0.0.2]nssa