華爲OSPF多區域實驗

實驗拓撲
華爲OSPF多區域實驗
實驗目的
總部有三個路由器分別是AR1,AR2,AR3,區域爲0
分部1和分部2分別是AR4和AR5,且分別有兩根專線到總部的區域0,從而造成等價路由鏈路備份;
AR1引入感興趣的直連路由並作彙總;
分部1的路由器性能較差,爲了減小LSA條目,配置爲totally NSSA區域;
分部1配置爲NSSA區域後又引入了外部路由,從而變成NSSA區域的ASBR;
爲保證安全不受非法***致使ospf網絡震盪,區域啓動認證。
AR1宣告默認路由,使ospf的IP段能訪問外網。node


AR1配置安全

acl 2100
rule 5 permit source 11.11.8.0 0.0.7.255  //用於路由策略
acl 3001
rule 10 permit ip source 10.0.0.0 0.0.255.255  //用於nat

ip route-static 0.0.0.0 0.0.0.0 202.100.1.2 默認路由指向ISP

interface GigabitEthernet0/0/2
 ip address 202.100.1.1 255.255.255.252 
 nat outbound 3001 //easy nat

route-policy import_die permit node 10 
 if-match acl 2100   //用於引入的感興趣IP

ospf 1 router-id 10.0.0.1 
 asbr-summary 11.11.8.0 255.255.248.0 //對外部路由彙總
 default-route-advertise  //整個ospf宣告默認路由,使其全部默認
 import-route direct route-policy import_die
 area 0.0.0.0 
  authentication-mode simple 123
  network 10.0.0.1 0.0.0.0 
  network 10.0.12.0 0.0.0.3 
  network 10.0.13.0 0.0.0.7

AR2配置網絡

ospf 1 router-id 10.0.0.2 
 area 0.0.0.0 
  authentication-mode simple 123
  network 10.0.0.2 0.0.0.0 
  network 10.0.12.0 0.0.0.7 
  network 10.0.23.0 0.0.0.7 
 area 0.0.0.1 
  abr-summary 172.16.0.0 255.255.252.0
  authentication-mode simple 123
  network 10.0.24.0 0.0.0.7 
  nssa no-summary
 area 0.0.0.2 
  authentication-mode simple 123
  network 10.0.25.0 0.0.0.7

AR3配置ide

ospf 1 router-id 10.0.0.3 
 area 0.0.0.0 
  authentication-mode simple 123
  network 10.0.0.3 0.0.0.0 
  network 10.0.13.0 0.0.0.7 
  network 10.0.23.0 0.0.0.7 
 area 0.0.0.1 
  abr-summary 172.16.0.0 255.255.252.0 //ABR彙總
  authentication-mode simple 123
  network 10.0.34.0 0.0.0.7 
  nssa no-summary   //配置totally NSSA
 area 0.0.0.2 
  authentication-mode simple 123
  network 10.0.35.0 0.0.0.7

AR4配置性能

ospf 1 router-id 10.0.0.4 
 import-route direct
 area 0.0.0.1 
  authentication-mode simple 123
  network 10.0.0.4 0.0.0.0 
  network 10.0.0.32 0.0.0.7 
  network 10.0.24.0 0.0.0.7

AR5配置code

ospf 1 router-id 10.0.0.5 
 area 0.0.0.2 
  authentication-mode simple 123
  network 10.0.0.5 0.0.0.0 
  network 10.0.25.0 0.0.0.7

經過display ospf 1 routing 能夠查看ospf的路由條目
dis ip routing-table protocol ospf 查看轉發的ospf路由條目router

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