OSPF知识总结2（多区域配置）
作者：互联网
OSPF知识总结2（多区域配置）
1.相关解释：
要解决网络规模大了以后的问题：网络的扩展性，降低路由器负载，实现路由的更快收敛
OSPF多区域的区域类型分为Area 0（骨干区域），
以及非Area 0 （非骨干区域）：
分区后，可以实现流量的分类并进行区隔：域内流量，域间流量，外部通讯流量
因为有不同区域，就有内部路由和毗连的区域边界路由器（ABR）
2.思路
.ENSP模型
.规划RouterID
.基本配置
.多区域OSPF配置
3.eNSP模型
4. 规划RouterID
RouterID规划（我个人想的方法）
X . X . X . X
区域码 . 工厂码 . 第几台 . 备用码
R1-ID： 20.1.1.0
R2-ID: 20.1.2.0
R3-ID: 20.1.3.0
R4-ID: 0.2.4.0
R5-ID： 0.2.5.0
R6-ID: 30.3.6.0
R7-ID: 30.3.7.0
5.基本配置
各端口IP地址配置，PCIP地址配置
6.多区域OSPF配置
R1
#
interface GigabitEthernet0/0/0
ip address 192.168.20.254 255.255.255.0
#
interface GigabitEthernet0/0/1
ip address 192.168.12.1 255.255.255.0
#
interface GigabitEthernet0/0/2
ip address 192.168.13.1 255.255.255.0
#
ospf 1 router-id 20.1.1.0
area 0.0.0.20
network 192.168.12.0 0.0.0.255
network 192.168.13.0 0.0.0.255
network 192.168.20.0 0.0.0.255
R2
interface GigabitEthernet0/0/0
ip address 192.168.12.2 255.255.255.0
#
interface GigabitEthernet0/0/1
ip address 192.168.23.2 255.255.255.0
#
ospf 1 router-id 20.1.2.0
area 0.0.0.20
network 192.168.12.0 0.0.0.255
network 192.168.23.0 0.0.0.255
R3
#
interface GigabitEthernet0/0/0
ip address 192.168.23.3 255.255.255.0
#
interface GigabitEthernet0/0/1
ip address 192.168.13.3 255.255.255.0
#
interface GigabitEthernet0/0/2
ip address 192.168.34.3 255.255.255.0
ospf 1 router-id 20.1.3.0 //这是ABR路由器，横跨两个区域，这是与单区域OSPF的不同
area 0.0.0.0
network 192.168.34.0 0.0.0.255
area 0.0.0.20
network 192.168.13.0 0.0.0.255
network 192.168.23.0 0.0.0.255
R4
#
interface GigabitEthernet0/0/0
ip address 192.168.45.4 255.255.255.0
#
interface GigabitEthernet0/0/1
ip address 192.168.34.4 255.255.255.0
ospf 1 router-id 0.2.4.0
area 0.0.0.0
network 192.168.34.0 0.0.0.255
network 192.168.45.0 0.0.0.255
R5
#
interface GigabitEthernet0/0/0
ip address 192.168.56.5 255.255.255.0
#
interface GigabitEthernet0/0/1
ip address 192.168.45.5 255.255.255.0
ospf 1 router-id 0.2.5.0
area 0.0.0.0
network 192.168.45.0 0.0.0.255
network 192.168.56.0 0.0.0.255
R6
#
interface GigabitEthernet0/0/0
ip address 192.168.67.6 255.255.255.0
#
interface GigabitEthernet0/0/1
ip address 192.168.56.6 255.255.255.0
ospf 1 router-id 30.3.6.0 //这是ABR路由器，横跨两个区域，这是与单区域OSPF的不同。其他一样
area 0.0.0.0
network 192.168.56.0 0.0.0.255
area 0.0.0.30
network 192.168.67.0 0.0.0.255
R7
#
interface GigabitEthernet0/0/0
ip address 192.168.30.254 255.255.255.0
#
interface GigabitEthernet0/0/1
ip address 192.168.67.7 255.255.255.0
ospf 1 router-id 30.3.7.0
area 0.0.0.30
network 192.168.30.0 0.0.0.255
network 192.168.67.0 0.0.0.255
标签：总结,network,0.0,知识,192.168,255.255,address,interface,OSPF 来源： https://www.cnblogs.com/gucun-blog/p/16545495.html