作业。。。。。。

1.R5为ISP,其上只能配置IP地址;R5与其他所有直连设备间均使用公有IP;环回地址为100.1.1.1/3
2.R4设备为企业出口路由器
3.整个0SPF环境IP基于172.16.0.0/16划分
4.所有设备均可访问R5的环回;
5.减少LSA的更新里,加快收敛,保障更新安全
6.全网可达
分析:
 1.所有设备均可访问 R5 的环回
 运用 OSPF ,或配置静态路由指向 100.1.1.1/3
2.整个 OSPF 环境 IP 基于 172.16.0.0/16 划分
 对 172.16.0.0/16 进行子网划分
3.R5 与其他所有直连设备间均使用公有 IP
 为 R5 及直连设备配置公有 IP 地址
4.R4 设备为企业出口路由器
 在 R4 上配置与 R5 互联的路由策略、NAT 转换及安全策略
5.减少 LSA 的更新量,加快收敛,保障更新安全
 划分 OSPF 区域,配置区域类型,启用路由认证
6.全网可达
 配置 OSPF 动态路由或静态路由,确保网络各节点可达
配置
 
 [ISP]int s 4/0/0
 [ISP-Serial4/0/0]ip add 45.0.0.2 30
 [ISP-Serial4/0/0]int l 0
 [ISP-LoopBack0]ip add 100.1.1.1 32
[r1]int g 0/0/0
 [r1-GigabitEthernet0/0/0]ip address  172.16.35.1 29
 [r1-GigabitEthernet0/0/0]int l 0
 [r1-LoopBack0]ip address 172.16.32.1 24    
 [r1-LoopBack0]ospf network-type broadcast 
 [r1]ospf 1 router-id 1.1.1.1
 [r1-ospf-1]a 1
 [r1-ospf-1-area-0.0.0.1]net    
 [r1-ospf-1-area-0.0.0.1]network 172.16.32.1 0.0.0.0
 [r1-ospf-1-area-0.0.0.1]network 172.16.35.1 0.0.0.0
  
 [r1]ospf 1
 [r1-ospf-1]a 1
 [r1-ospf-1-area-0.0.0.1]stub
  
 [r1]int g 0/0/0
 [r1-GigabitEthernet0/0/0]ospf n    
 [r1-GigabitEthernet0/0/0]ospf network-type p2mp
  
 [r1-GigabitEthernet0/0/0]ospf timer hello 5
[r2]int g0/0/0 
 [r2-GigabitEthernet0/0/0]ip address 172.16.35.2 29 
 [r2-GigabitEthernet0/0/0]int l 0 
 [r2-LoopBack0]ip address 172.16.33.1 24
 [r2-LoopBack0]ospf network-type broadcast 
  
 [r2]ospf 1 router-id 2.2.2.2
 [r2-ospf-1]a 1
 [r2-ospf-1-area-0.0.0.1]network 172.16.33.1 0.0.0.0 
 [r2-ospf-1-area-0.0.0.1]network 172.16.35.2 0.0.0.0
  
 [r2]ospf 1
 [r2-ospf-1]a 1
 [r2-ospf-1-area-0.0.0.1]stub
  
 [r2]int g 0/0/0 
 [r2-GigabitEthernet0/0/0]ospf n    
 [r2-GigabitEthernet0/0/0]ospf network-type p2mp
  
 [r2-GigabitEthernet0/0/0]ospf timer hello 5
[r3]int g 0/0/0
 [r3-GigabitEthernet0/0/0]ip address 172.16.35.3 29
 [r3-GigabitEthernet0/0/0]int g 0/0/1
 [r3-GigabitEthernet0/0/1]ip address 172.16.0.1 30
 [r3-GigabitEthernet0/0/1]int l 0
 [r3-LoopBack0]ip address 172.16.34.1 24
 [r3-LoopBack0]ospf network-type broadcast 
  
 [r3]ospf 1 router-id 3.3.3.3
 [r3-ospf-1]a 1
 [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]network 172.16.34.1 0.0.0.0
 [r3-ospf-1]a 0
 [r3-ospf-1-area-0.0.0.0]network 172.16.0.1 0.0.0.0
  
 [r3]ospf 1
 [r3-ospf-1]a 1
 [r3-ospf-1-area-0.0.0.1]abr-su    
 [r3-ospf-1-area-0.0.0.1]abr-summary 172.16.32.0 255.255.224.0
  
 [r3-ospf-1]a 1
 [r3-ospf-1-area-0.0.0.1]stub no-s    
 [r3-ospf-1-area-0.0.0.1]stub no-summary
  
 [r3]int g 0/0/1
 [r3-GigabitEthernet0/0/1]ospf network-type p2p
 [r3-GigabitEthernet0/0/1]int g 0/0/0
 [r3-GigabitEthernet0/0/0]ospf network-type p2mp
  
 [r3-GigabitEthernet0/0/0]ospf timer hello 5
  
 [r3]ospf 1
 [r3-ospf-1]a 0
 [r3-ospf-1-area-0.0.0.0]au    
 [r3-ospf-1-area-0.0.0.0]authentication-mode md5 1 c    
 [r3-ospf-1-area-0.0.0.0]authentication-mode md5 1 cipher 123456
[r4]int g 0/0/0 
 [r4-GigabitEthernet0/0/0]ip address 172.16.0.9 30 
 [r4-GigabitEthernet0/0/0]int g 0/0/1 
 [r4-GigabitEthernet0/0/1]ip address 172.16.0.2 30 
 [r4-GigabitEthernet0/0/1]int g 0/0/2 
 [r4-GigabitEthernet0/0/2]ip address 172.16.0.5 30
 [r4-GigabitEthernet0/0/2]int s 4/0/1
 [r4-Serial4/0/1]ip address 45.0.0.1 30
  
 [r4]ospf 1 router-id 4.4.4.4
 [r4-ospf-1]a 0
 [r4-ospf-1-area-0.0.0.0]network 172.16.0.2 0.0.0.0
 [r4-ospf-1-area-0.0.0.0]network 172.16.0.5 0.0.0.0
 [r4-ospf-1-area-0.0.0.0]network 172.16.0.9 0.0.0.0
  
 [r4]ospf 1
 [r4-ospf-1]default-route-advertise 
  
 [r4]int g 0/0/1
 [r4-GigabitEthernet0/0/1]ospf network-type p2p
  
 [r4]ospf 1
 [r4-ospf-1]a 0
 [r4-ospf-1-area-0.0.0.0]authentication-mode md5 1 cipher 123456
  
 [r4-ospf-1]acl 2000
 [r4-acl-basic-2000]rule permit source 172.16.0.0 0.0.255.255
 [r4-acl-basic-2000]q
 [r4]int s 4/0/1
 [r4-Serial4/0/1]nat outbound 2000
[r6]int g 0/0/0
 [r6-GigabitEthernet0/0/0]ip add 172.16.66.1 30
 [r6-GigabitEthernet0/0/0]int g 0/0/1
 [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 network-type broadcast 
  
 [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] a 2
 [r6-ospf-1-area-0.0.0.2]network 172.16.66.1 0.0.0.0
 [r6-ospf-1-area-0.0.0.2]network 172.16.64.1 0.0.0.0
  
 [r6]ospf 1
 [r6-ospf-1]a 2
 [r6-ospf-1-area-0.0.0.2]abr-summary 172.16.64.0 255.255.224.0
  
 [r6-ospf-1]a 2
 [r6-ospf-1-area-0.0.0.2]nssa no-    
 [r6-ospf-1-area-0.0.0.2]nssa no-summary
  
 [r6]ospf 1
 [r6-ospf-1]a 0    
 [r6-ospf-1-area-0.0.0.0]authentication-mode md5 1 cipher 123456
[r7]int g 0/0/0
 [r7-GigabitEthernet0/0/0]ip add 172.16.0.10 30
 [r7-GigabitEthernet0/0/0]int g 0/0/1
 [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 network-type  broadcast 
  
 [r7]ospf 1 router-id 7.7.7.7
 [r7-ospf-1]a 0
 [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]q
 [r7-ospf-1]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
  
 [r7]ospf 1
 [r7-ospf-1]a 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]a 3    
 [r7-ospf-1-area-0.0.0.3]nssa no-summary 
  
 [r7]ospf 1
 [r7-ospf-1]a 0
 [r7-ospf-1-area-0.0.0.0]authentication-mode md5 1 cipher 123456
[r8]int g 0/0/0
 [r8-GigabitEthernet0/0/0]ip address 172.16.98.2 30
 [r8-GigabitEthernet0/0/0]int g 0/0/1
 [r8-GigabitEthernet0/0/1]ip ad 172.16.98.5 30
 [r8-GigabitEthernet0/0/1]int l 0
 [r8-LoopBack0]ip ad 172.16.97.1 24
  
 [r8]ospf 1 router-id 8.8.8.8
 [r8-ospf-1]a 3
 [r8-ospf-1-area-0.0.0.3]network 172.16.98.2 0.0.0.0
 [r8-ospf-1-area-0.0.0.3]network 172.16.97.1 0.0.0.0
 [r8-ospf-1-area-0.0.0.3]network 172.16.98.5 0.0.0.0
  
 [r8]ospf 1
 [r8-ospf-1]a 3
 [r8-ospf-1-area-0.0.0.3]nssa
[r9]int g 0/0/0
 [r9-GigabitEthernet0/0/0]ip add 172.16.98.6 30
 [r9-GigabitEthernet0/0/0]int g 0/0/1
 [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 network-type broadcast 
  
 [r9]ospf 1 r    
 [r9]ospf 1 router-id 9.9.9.9
 [r9-ospf-1]a 3
 [r9-ospf-1-area-0.0.0.3]network 172.16.98.6 0.0.0.0
 r9]ospf 2 r    
 [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
  
 [r9]ospf 1
 [r9-ospf-1]import-route  ospf 2
 [r9-ospf-1]q
 [r9]ospf 2
 [r9-ospf-2]import-route ospf 1
  
 [r9]ospf 1
 [r9-ospf-1]asb    
 [r9-ospf-1]asbr-summary 172.16.128.0 255.255.224.0
  
 [r9]ospf 1
 [r9-ospf-1]a 3
 [r9-ospf-1-area-0.0.0.3]nssa
 [r9-ospf-1]ospf 2
 [r9-ospf-2]default-route-advertise
[r10]int g 0/0/0
 [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 network-type broadcas
  
 [r10]ospf 1 router-id 10.10.10.10
 [r10-ospf-1]a 4
 [r10-ospf-1-area-0.0.0.4]network 172.16.129.1 0.0.0.0
 [r10-ospf-1-area-0.0.0.4]network 17[r11]int g 0/0/0
 [r11-GigabitEthernet0/0/0]ip add 172.16.66.2 30
 [r11-GigabitEthernet0/0/0]int g 0/0/1
 [r11-GigabitEthernet0/0/1]ip add 172.16.66.5 30
 [r11-GigabitEthernet0/0/1]int l 0
 [r11-LoopBack0]ip add 172.16.65.1 24
 [r11-LoopBack0]ospf network-type broadcast 
  
 [r11]ospf 1 router-id 11.11.11.11
 [r11-ospf-1]a 2    
 [r11-ospf-1-area-0.0.0.2]network 172.16.65.1 0.0.0.0
 [r11-ospf-1-area-0.0.0.2]network 172.16.66.5 0.0.0.0
 [r11-ospf-1-area-0.0.0.2]network 172.16.66.2 0.0.0.0
  
 [r11]ospf 1
 [r11-ospf-1]a 2
 [r11-ospf-1-area-0.0.0.2]nssa2.16.130.2 0.0.0.0
[r12]int g 0/0/0
 [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
  
 [r12]ospf 1 router-id 12.12.12.12
 [r12-ospf-1]a 2
 [r12-ospf-1-area-0.0.0.2]network 172.16.66.6 0.0.0.0
 [r12]rip 1
 [r12-rip-1]ver 2
 [r12-rip-1]network 10.0.0.0
  
 [r12]ospf 1
 [r12-ospf-1]import-route rip 1
  
 [r12]ospf 1
 [r12-ospf-1]asb    
 [r12-ospf-1]asbr-summary 10.1.0.0 255.255.252.0
  
 [r12]ospf 1
 [r12-ospf-1]a 2
 [r12-ospf-1-area-0.0.0.2]nssa

