ospf之虚链路

虚拟链路：可以让不和骨干区域相连的非骨干区域通过和骨干相连的骨干区域创建出一条虚拟的链路使的让不相连的非骨干区域和骨干区建立链接

缺点：只能跨越普通的区域，如果是stub、nssa区域则无法创建虚链接

创建好了pc机就可以通过area 0 去访问企业的云服务器

脚本【没有配置虚链接】

AR7
system-view 
sysname AR 7
interface GigabitEthernet 0/0/1
ip address 172.168.110.254 24
quit
interface GigabitEthernet 0/0/0
ip address 100.1.1.2 30
quit

AR1
system-view 
sysname AR1
undo  info-center  enable 
interface  GigabitEthernet 0/0/1
ip address 100.1.1.1 30
quit
interface  GigabitEthernet 0/0/0
ip address 192.168.12.1 24
quit
ospf 1 router-id  1.1.1.1
area  0
network 192.168.12.0 0.0.0.255
quit
quit
ip route-static  0.0.0.0 0 100.1.1.2
ospf 1
default-route-advertise
quit
[AR1]acl  2000
rule  5 permit  source 192.168.0.0 0.0.255.255
quit
interface  GigabitEthernet 0/0/1
nat  outbound  2000
quit

AR2
system-view 
sysname AR2
undo  info-center  enable 
interface  GigabitEthernet 0/0/1
ip address 192.168.12.2 24
quit
interface  GigabitEthernet 0/0/0
ip address 192.168.23.1 24
quit
ospf 1 router-id  2.2.2.2
area  0
network 192.168.12.0 0.0.0.255
network 192.168.23.0 0.0.0.255
quit
quit

AR3
system-view 
sysname AR3
undo  info-center  enable 
interface  GigabitEthernet 0/0/1
ip address 192.168.23.2 24
quit
interface GigabitEthernet 0/0/0
ip address 192.168.34.1 24
quit
ospf 1 router-id 3.3.3.3
area 0
network 192.168.23.0 0.0.0.255
quit
area 34
network 192.168.34.0 0.0.0.255
quit
quit

AR4
system-view 
sysname AR4
undo  info-center  enable 
interface  GigabitEthernet 0/0/1
ip address 192.168.34.2 24
quit
interface  GigabitEthernet 0/0/0
ip address 192.168.45.1 24
quit
ospf 1 router-id 4.4.4.4
area 34
network 192.168.34.0 0.0.0.255
quit
area 45
network 192.168.45.0 0.0.0.255
quit
quit

AR5
system-view 
sysname AR5
undo  info-center enable 
interface  GigabitEthernet 0/0/1
ip address 192.168.45.2 24
quit
interface  GigabitEthernet 0/0/0
ip address 192.168.1.254 24
quit
ospf 1 router-id  5.5.5.5
area 45
network 192.168.45.0 0.0.0.255
network 192.168.1.0 0.0.0.255
quit 
quit
dhcp enable  
interface GigabitEthernet 0/0/0
dhcp select global 
quit
ip pool 1
network  192.168.1.0 mask  24
gateway-list 192.168.1.254
dns-list  168.167.11.166
lease  day  23
quit