分析:1、设置各个IP与环回记住要分好子网区域
2、浅蓝色区域作为公网区域
3、以R3为hub,R5、R7、R6为spoke
4、边界路由是NAT
5、减少LSA的更新量,特殊区域,进行域间路由汇总
6、area 1完全末梢,area 2做nssa
7、更新安全,区域认证,接口认证
子网划分
OSPF----172.16.0.0/17
172.16.0 000 0000/20 0 ---area0
172.16.0 001 0000/20 16 ---area1
172.16.0 010 0000/20 32 ---area2
172.16.0 011 0000/20 48 ---area3
172.16.0 100 0000/20 68 ---area4
172.16.0 101 0000/20 80
172.16.0 110 0000/20 96
172.16.0 111 0000/20 112
RIP----172.16.128.0/17
步骤一:配IP与环回
R1:
[AR1]interface GigabitEthernet 0/0/0
[AR1-GigabitEthernet0/0/0]ip address 172.16.19.1 29
[AR1-GigabitEthernet0/0/0]q
[AR1]interface LoopBack 0
[AR1-LoopBack0]ip address 172.16.16.1 24
[AR1-LoopBack0]ospf network-type broadcast
R2:
[AR2]interface GigabitEthernet 0/0/0
[AR2-GigabitEthernet0/0/0]ip address 172.16.19.2 29
[AR2-GigabitEthernet0/0/0]q
[AR2]interface LoopBack 0
[AR2-LoopBack0]ip address 172.16.17.1 24
[AR2-LoopBack0]ospf network-type broadcast
R3:
[AR3]interface GigabitEthernet 0/0/0
[AR3-GigabitEthernet0/0/0]ip address 172.16.19.3 29
[AR3-GigabitEthernet0/0/0]q
[AR3]interface Serial 4/0/0
[AR3-Serial4/0/0]ip address 34.0.0.3 24
[AR3-Serial4/0/0]q
[AR3]interface LoopBack 0
[AR3-LoopBack0]ip address 172.1