双点双向路由引入

第一步、在R1、R2、R3、R4上运行OSPF

第二步、在R3、R4、R5、R6上运行ISIS

第三步、在R1上创建lo0、lo1创建环回口,配置IP,并将该路由引入OSPF

第四步、在R6创建lo0、lo1创建环回口,配置IP,并将该路由引入ISIS

第五步、在AS边界路由器AR3和AR4上执行路由的双点双向引入,仅将OSPF区域的1.1.1.1/32和1.1.1.2/32路由引入到ISIS,将ISIS区域的1.1.1.3/32和1.1.1.4/32路由引入到OSPF。

R1配置

复制代码
interface GigabitEthernet0/0/0
 ip address 10.0.12.1 255.255.255.0 
#
interface GigabitEthernet0/0/1
 ip address 10.0.13.1 255.255.255.0 

interface LoopBack0
 ip address 1.1.1.1 255.255.255.255 
#
interface LoopBack1
 ip address 1.1.1.2 255.255.255.255 
#
ospf 1 router-id 1.1.1.1 
 import-route direct route-policy 1
 area 0.0.0.0 
  network 10.0.12.0 0.0.0.255 
  network 10.0.13.0 0.0.0.255 
#
route-policy 1 permit node 1 
 if-match ip-prefix 1 
#
ip ip-prefix 1 index 10 permit 1.1.1.0 24 greater-equal 32 less-equal 32    #定义一个前缀列表。
复制代码

R2配置

复制代码
interface GigabitEthernet0/0/0
 ip address 10.0.12.2 255.255.255.0 
#
interface GigabitEthernet0/0/1
 ip address 10.0.24.2 255.255.255.0 

ospf 1 router-id 2.2.2.2 
 area 0.0.0.0 
  network 10.0.12.0 0.0.0.255 
  network 10.0.24.0 0.0.0.255 
复制代码

R3配置

复制代码
isis 1
 is-level level-2
 network-entity 49.0030.0300.3003.00
 import-route ospf 1 route-policy oti

interface GigabitEthernet0/0/0
 ip address 10.0.13.3 255.255.255.0 
#
interface GigabitEthernet0/0/1
 ip address 10.0.34.3 255.255.255.0 
 isis enable 1
#
interface GigabitEthernet0/0/2
 ip address 10.0.35.3 255.255.255.0 
 isis enable 1

ospf 1 router-id 3.3.3.3 
 import-route isis 1 route-policy ito
 area 0.0.0.0 
  network 10.0.13.0 0.0.0.255 
  network 10.0.34.0 0.0.0.255 
#
route-policy oti deny node 5 
 if-match tag 200
#
route-policy oti permit node 10 
 if-match ip-prefix 1
 apply tag 100 
#
route-policy ito deny node 5 
 if-match tag 400
#
route-policy ito permit node 10 
 if-match ip-prefix 1 
 apply tag 300 
#
ip ip-prefix 1 index 10 permit 1.1.1.0 24 greater-equal 32 less-equal 32
复制代码

R4配置

复制代码
isis 1
 is-level level-2
 network-entity 49.0040.0400.4004.00

interface GigabitEthernet0/0/0
 ip address 10.0.24.4 255.255.255.0 
#
interface GigabitEthernet0/0/1
 ip address 10.0.34.4 255.255.255.0 
 isis enable 1
#
interface GigabitEthernet0/0/2
 ip address 10.0.46.4 255.255.255.0 
 isis enable 1

ospf 1 router-id 4.4.4.4 
 preference ase 14 
 area 0.0.0.0 
  network 10.0.24.0 0.0.0.255 
  network 10.0.34.0 0.0.0.255 
#
route-policy ito deny node 5 
 if-match tag 100
#
route-policy ito permit node 10 
 if-match ip-prefix 1 
 apply tag 200 
#
route-policy oti deny node 5 
 if-match tag 300
#
route-policy oti permit node 10 
 if-match ip-prefix 1 
 apply tag 400 
#
ip ip-prefix 1 index 10 permit 1.1.1.0 24 greater-equal 32 less-equal 32
复制代码

R5配置

复制代码
isis 1
 is-level level-2
 network-entity 49.0050.0500.5005.00

interface GigabitEthernet0/0/0
 ip address 10.0.35.5 255.255.255.0 
 isis enable 1
#
interface GigabitEthernet0/0/1
 ip address 10.0.56.5 255.255.255.0 
 isis enable 1
复制代码

R6配置

复制代码
isis 1
 is-level level-2
 network-entity 49.0060.0600.6006.00
 import-route direct route-policy 1 

interface GigabitEthernet0/0/0
 ip address 10.0.46.6 255.255.255.0 
 isis enable 1
#
interface GigabitEthernet0/0/1
 ip address 10.0.56.6 255.255.255.0 
 isis enable 1

interface LoopBack0
 ip address 1.1.1.3 255.255.255.255 
#
interface LoopBack1
 ip address 1.1.1.4 255.255.255.255 
#
route-policy 1 permit node 10 
 if-match ip-prefix 1 
#
ip ip-prefix 1 index 10 permit 1.1.1.0 24 greater-equal 32 less-equal 32
复制代码

 

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