Hcip OSPF comprehensive experiment

Experimental content ：

  Experimental analysis and ideas ：

1、 Subnet partition

By region ; The area is divided freely

2、IP Address configuration

3、 Default route +NAT

4、MGRE Environment configuration

5、oSPF agreement

6、 Reissue

7、 Inter domain routing summary and extradomain routing summary

8、 Air interface anti loop routing

9、 Special area

10、 Change the convergence time

11、oSPF authentication

12、 Test the accessibility of the whole network

Experimental process ：

Subnet partition

Yes 6 Regions , Variable length subnet mask , borrow 3 Bit Division 8 Subnet

area0  （ There are 3 Net segment 3 Loop back , borrow 3 Bit delimitation 8 Subnet ）
172.16.32.0/19

172.16.32.0/22  172.16.48.0/22  172.16.40.0/22  172.16.36.0/22
172.16.56.0/22  172.16.52.0/22  172.16.44.0/22  172.16.60.0/22

area1  （ There are 1 Net segment 3 Loop back , borrow 2 Bitwise speech 4 Subnet ） 
172.16.64.0/19

172.16.64.0/21  172.16.80.0/21  172.16.72.0/21  172.16.76.0/21

area2    （ There are 2 Net segment 1 Loop back , borrow 2 Bit delimitation 4 Subnet ）
172.16.128.0/19

172.16.128.0/21  172.16.144.0/21  172.16.136.0/21  172.16.152.0/21

area3    （ There are 2 Net segment 1 Loop back , borrow 2 Bit delimitation 4 Subnet ）
172.16.160.0/19

172.16.160.0/21  172.16.176.0/21  172.16.168.0/21  172.16.184.0/21

 area4   （ There are 1 Net segment 2 Loop back , borrow 2 Bit delimitation 4 Subnet ）
172.16.192.0/19

172.16.192.0/21  172.16.208.0/21  172.16.200.0/21  172.16.216.0/21

RIP    There are 2 Loopback , borrow 1 Bit delimitation 2 Subnet
172.16.96.0/19 

172.16.96.0/20  172.16.112.0/20

  Topology

IP Address configuration / Yes r3、r5、r6、r7 Configure default routes and NAT( With R3 For example )

[r3]ip route-static 0.0.0.0 0 172.16.44.2
[r3]acl 2000
[r3-acl-basic-2000]rule permit source any
[r3]int s4/0/0
[r3-Serial4/0/0]nat outbound 2000

MGRE Environment configuration （r3 Centered ）

r3 To configure

[r3]inter t0/0/0
[r3-Tunnel0/0/0]ip add 10.1.1.1 24
[r3-Tunnel0/0/0]tunnel-protocol gre p2mp 
[r3-Tunnel0/0/0]source s4/0/0
[r3-Tunnel0/0/0]nhrp entry multicast dynamic  

r5 To configure  （r6\r7 Configuration is the same as r5, Register in the center ）

[r5]inter t0/0/0
[r5-Tunnel0/0/0]ip add 10.1.1.2 255.255.255.0
[r5-Tunnel0/0/0]tunnel-protocol gre p2mp 
[r5-Tunnel0/0/0]source s4/0/0
[r5-Tunnel0/0/0]nhrp network-id 100      
[r5-Tunnel0/0/0]nhrp entry 10.1.1.1 172.16.44.1 register

oSPF agreement （ Declare the division of each router r4 Outside , With r1 For example Pay attention to the announcement area ）

[r1]ospf 1 router-id 1.1.1.1
[r1-ospf-1]area 1
[r1-ospf-1-area-0.0.0.1]network 172.168.72.1 0.0.0.0
[r1-ospf-1-area-0.0.0.1]network 172.168.64.1 0.0.0.0

Reissue （ stay r9\r12 To configure ）

r12（ establish rip Then republish ）

[r12]rip 1
[r12-rip-1]network 172.16.0.0
[r12]ospf 1 
[r12-ospf-1]import-route rip

r9( Create two processes ospf 1 And ospf 2)

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

Inter domain routing summary （ stay r3\r6\r7 On the configuration ）

[r3]ospf 1
[r3-ospf-1]area 1
[r3-ospf-1-area-0.0.0.1]abr-summary 172.16.64.0 255.255.224.0

Extraterritorial routing summary （ stay r9\r12 On the configuration ）

[r9]ospf 1
[r9-ospf-1]asbr-summary 172.16.192.0 255.255.224.0

Air interface anti loop routing （ stay r3\r6\r7\r9\r12）

[r3]ip route-static 172.16.64.0 19 NULL 0

Special area

1） Complete tip blending area1 Adjust to the complete terminal area

[r1]ospf 1
[r1-ospf-1]arp-ping
[r1-ospf-1]area 1
[r1-ospf-1-area-0.0.0.1]stub

[r3]ospf 1
[r3-ospf-1]area 1
[r3-ospf-1-area-0.0.0.1]stub no-summary 

 2）Area2 Adjust to complete ASSA

[r11]ospf 1
[r11-ospf-1]area 2
[r11-ospf-1-area-0.0.0.2]nssa

[r6]ospf 1
[r6-ospf-1]area 2
[r6-ospf-1-area-0.0.0.2]nssa no-summary

3)Area3 Adjust to complete ASSA The configuration is the same as above , here r9 appear 3 Class default r9 to r10 Republish a default message

[r9]ospf 2
[r9-ospf-2]default-route-advertise

change hello Time

[r3]interface s4/0/0
[r3-serial4/0/0]ospf timer hello 5  

oSPF authentication

[r3]interface serial4/0/0
[r3-serial0/0/1]ospf authentication-mode md5 1 123456

Test the accessibility of the whole network （172.16.60.1 by r4 The loopback of ）

  End of experiment