OSPF综合实验（IP）

实验拓扑

实验要求

R5为ISP，其上只能配置IP地址；R4作为企业边界路由器，出口公网地址需要通过PPP协议获取，并进行chap认证；
整个OSPF环境IP基于172.16.0.0/16划分；
所有设备均可访问R5的环回；
减少LSA的更新量，加快收敛，保障更新安全；
全网可达。

子网划分

把每一个区域规划成一个网段，后面汇总可以得到最少网段结果

172.16.0.0/16

area 0：172.16.0.0/19

172.16.0.0/24 骨干

172.16.0.0/30

172.16.0.4/30

172.16.0.8/30

172.16.0.1/24 R4环回

area 1：172.16.32.0/19

172.16.32.0/24 骨干

172.16.32.0/29

172.16.33.0/24 R1

172.16.34.0/24 R2

172.16.35.0/24 R3

area 2：172.16.64.0/19

area 3：172.16.96.0/19

area 4：172.16.128.0/19

实验配置

R1:

[r1]int l 0
[r1-LoopBack0]ip add 172.16.32.1 24
[r1-LoopBack0]ospf net	
[r1-LoopBack0]ospf network-type b	
[r1-LoopBack0]ospf network-type broadcast
[r1]int g0/0/0
[r1-GigabitEthernet0/0/0]ip add 172.16.35.1 29
[r1-GigabitEthernet0/0/0]q

R2:

[r2]int l 0
[r2-LoopBack0]ip add 172.16.32.1 24
[r2-LoopBack0]ospf net	
[r2-LoopBack0]ospf network-type b	
[r2-LoopBack0]ospf network-type broadcast 
[r2-LoopBack0]qu
[r2]int g0/0/0
[r2-GigabitEthernet0/0/0]ip add 172.16.35.2 29

R3:

[r3]int g 0/0/0
[r3-GigabitEthernet0/0/0]ip add 172.16.35.3 29
[r3-LoopBack0]int g0/0/1
[r3-GigabitEthernet0/0/1]ip add 172.16.0.1 30
[r3-GigabitEthernet0/0/1]int l 0
[r3-LoopBack0]ip add 17.16.34.1 24	
[r3-LoopBack0]ospf net	
[r3-LoopBack0]ospf network-type b	
[r3-LoopBack0]ospf network-type broadcast

R4:

[r4]int g0/0/1
[r4-GigabitEthernet0/0/1]ip add 172.16.0.2 30
[r4-GigabitEthernet0/0/1]int g0/0/2
[r4-GigabitEthernet0/0/2]ip add 172.16.0.5 30
[r4-GigabitEthernet0/0/2]int g 0/0/0
[r4-GigabitEthernet0/0/0]ip add 172.16.0.9 30
[r4-GigabitEthernet0/0/0]qu
[r4]int l 0
[r4-LoopBack0]ip add 172.16.1.1 24
[r4-LoopBack0]ospf net	
[r4-LoopBack0]ospf network-type b	
[r4-LoopBack0]ospf network-type broadcast

R6:

[r6]int g 0/0/0
[r6-GigabitEthernet0/0/0]ip add 172.16.66.1 30
[r6-GigabitEthernet0/0/0]int g0/0/1
[r6-GigabitEthernet0/0/1]ip add 172.16.0.6 30 
[r6-GigabitEthernet0/0/1]int l 0
[r6-LoopBack0]ip add 172.16.64.1 24
[r6-LoopBack0]ospf net	
[r6-LoopBack0]ospf network-type b	
[r6-LoopBack0]ospf network-type broadcast

R7:

[r7]int g0/0/0
[r7-GigabitEthernet0/0/0]ip add 172.16.0.10 30
[r7-GigabitEthernet0/0/0]int g0/0/1
[r7-GigabitEthernet0/0/1]ip add 172.16.98.1 30
[r7-GigabitEthernet0/0/1]int l 0
[r7-LoopBack0]ip add 172.16.96.1 24
[r7-LoopBack0]ospf net	
[r7-LoopBack0]ospf network-type b
[r7-LoopBack0]ospf network-type broadcast

R8:

[r8]int g0/0/0
[r8-GigabitEthernet0/0/0]ip add 172.16.98.2 30
[r8-GigabitEthernet0/0/0]int g0/0/1
[r8-GigabitEthernet0/0/1]ip add 172.16.98.5 30
[r8-GigabitEthernet0/0/1]int l 0
[r8-LoopBack0]ip add 172.16.97.1 24
[r8-LoopBack0]ospf net	
[r8-LoopBack0]ospf network-type b	
[r8-LoopBack0]ospf network-type broadcast

R9:

[r9]int g0/0/0
[r9-GigabitEthernet0/0/0]ip add 172.16.98.6 30
[r9-GigabitEthernet0/0/0]int g0/0/1
[r9-GigabitEthernet0/0/1]ip add 172.16.130.1 30
[r9-GigabitEthernet0/0/1]int l 0
[r9-LoopBack0]ip add 172.16.128.1 24
[r9-LoopBack0]ospf net	
[r9-LoopBack0]ospf network-type b	
[r9-LoopBack0]ospf network-type broadcast

R10:

[r10]int g0/0/0
[r10-GigabitEthernet0/0/0]ip add 172.16.130.2 30
[r10-GigabitEthernet0/0/0]int l 0
[r10-LoopBack0]ip add 172.16.129.1 24
[r10-LoopBack0]ospf net	
[r10-LoopBack0]ospf network-type b	
[r10-LoopBack0]ospf network-type broadcast

R11:

[r11]int g0/0/0
[r11-GigabitEthernet0/0/0]ip add 172.16.66.2 30. 
[r11-GigabitEthernet0/0/0]int l 0
[r11-LoopBack0]ip add 172.16.65.1 24
[r11-LoopBack0]ospf net	
[r11-LoopBack0]ospf network-type b	
[r11-LoopBack0]ospf network-type broadcast 
[r11-LoopBack0]int g0/0/1
[r11-GigabitEthernet0/0/1]ip add 172.16.66.5 30

R12：

[r12]int g0/0/0
[r12-GigabitEthernet0/0/0]ip add 172.16.66.6 30
[r12-GigabitEthernet0/0/0]int l 0
[r12-LoopBack0]ip add 10.1.1.1 24
[r12-LoopBack0]int l 1
[r12-LoopBack1]ip add 10.1.2.1 24

测试（直连是否能ping通）

配置ospf

[r3]ospf 1 router-id 3.3.3.3
[r3-ospf-1]a 1
[r3-ospf-1-area-0.0.0.1]net	
[r3-ospf-1-area-0.0.0.1]network 172.16.34.1 0.0.0.0
[r3-ospf-1-area-0.0.0.1]network 172.16.35.3 0.0.0.0
[r3-ospf-1-area-0.0.0.1]a 0
[r3-ospf-1-area-0.0.0.0]network 172.16.0.1 0.0.0.0

[r6]ospf 1 router-id 6.6.6.6
[r6-ospf-1]a 0	
[r6-ospf-1-area-0.0.0.0]network 172.16.0.6 0.0.0.0
[r6-ospf-1-area-0.0.0.0]q
[r6-ospf-1]a 2
[r6-ospf-1-area-0.0.0.2]
[r6-ospf-1-area-0.0.0.2]net	
[r6-ospf-1-area-0.0.0.2]network 172.16.64.1 0.0.0.0
[r6-ospf-1-area-0.0.0.2]network 172.16.66.1 0.0.0.0

[r7]ospf 1 router-id 7.7.7.7
[r7-ospf-1]a 0
[r7-ospf-1-area-0.0.0.0]net	
[r7-ospf-1-area-0.0.0.0]network 172.16.0.10 0.0.0.0
[r7-ospf-1-area-0.0.0.0]a 3
[r7-ospf-1-area-0.0.0.3]network 172.16.96.1 0.0.0.0
[r7-ospf-1-area-0.0.0.3]network 172.16.98.1 0.0.0.0

[r8]ospf 1 router-id 8.8.8.8
[r8-ospf-1]a 3
[r8-ospf-1-area-0.0.0.3]net	
[r8-ospf-1-area-0.0.0.3]network 172.16.96.0 0.0.31.255

[r9]ospf 1 router-id 9.9.9.9
[r9-ospf-1]a 3
[r9-ospf-1-area-0.0.0.3]net	
[r9-ospf-1-area-0.0.0.3]network 172.16.98.6 0.0.0.0
[r9]ospf 2 router-id 9.9.9.9
[r9-ospf-2]a 4
[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 172.16.130.1 0.0.0.0

配置R12的rip

多进程双向重发布

配置isp

所有设备均可访问R5环回

汇总

空接口防环

特殊区域

#R1
[r1]ospf 1
[r1-ospf-1]a 1
[r1-ospf-1-area-0.0.0.1] stub

#R2
[r2]ospf 1 
[r2-ospf-1]a 1
[r2-ospf-1-area-0.0.0.1]stub

#R3
[r3]ospf 1
[r3-ospf-1]a 1
[r3-ospf-1-area-0.0.0.1]stub no-	
[r3-ospf-1-area-0.0.0.1]stub no-summary 

#R6
[r6]ospf 1
[r6-ospf-1]a 2
[r6-ospf-1-area-0.0.0.2]stub no-	
[r6-ospf-1-area-0.0.0.2]stub no-summary 

#R11
[r11]ospf 1
[r11-ospf-1]a 2
[r11-ospf-1-area-0.0.0.2]nssa 

#R12
[r12]ospf 1
[r12-ospf-1]a 2
[r12-ospf-1-area-0.0.0.2]nssa

#R7
[r7]ospf 1
[r7-ospf-1]a 3
[r7-ospf-1-area-0.0.0.3]nssa no-summary 

#R8
[r8]ospf 1
[r8-ospf-1]a 3
[r8-ospf-1-area-0.0.0.3]nssa

#R9
[r9]ospf 1
[r9-ospf-1]a 3
[r9-ospf-1-area-0.0.0.3]nssa

[r9]ospf 2
[r9-ospf-2]dis th


[r9-ospf-2]undo im	
[r9-ospf-2]undo import-route ospf 1