企业多区域网络互联项目简介
一、项目背景
随着企业业务扩展，需构建跨区域（区域1、区域0、区域2）的网络架构，实现不同区域终端（PC-PC1、PC-PC2）的互联互通，同时保障网络稳定性与可扩展性。本项目通过路由器组网，搭建从终端接入到骨干互联的完整网络链路。
AR1路由器配置：
system-view
sysname AR1
undo info-center enable
interface GigabitEthernet0/0/0
ip address 10.1.1.1 255.255.255.252
interface GigabitEthernet0/0/1
ip address 192.168.1.254 255.255.255.0 配置IP地址
ospf 1 router-id 1.1.1.1
area 0.0.0.1
network 10.1.1.0 0.0.0.3
network 192.168.1.0 0.0.0.255
vlink-peer 2.2.2.2
AR2路由器配置：
system-view
undo info-center enable
sysname AR2
interface GigabitEthernet0/0/0
ip address 10.1.1.2 255.255.255.252
interface GigabitEthernet0/0/1
ip address 10.1.2.1 255.255.255.252
ospf 1 router-id 2.2.2.2
area 0
network 10.1.2.0 0.0.0.3
area 1
network 10.1.1.0 0.0.0.3
AR3路由器配置：
system-view
sysname AR3
interface GigabitEthernet0/0/0
ip address 10.1.3.1 255.255.255.252
interface GigabitEthernet0/0/1
ip address 10.1.2.2 255.255.255.252
ospf 1 router-id 3.3.3.3
area 0.0.0.0
network 10.1.2.0 0.0.0.3
area 0.0.0.1
area 0.0.0.2
network 10.1.3.0 0.0.0.3
AR4路由配置：
system-view
sysname AR4
interface GigabitEthernet0/0/0
ip address 10.1.3.2 255.255.255.252
interface GigabitEthernet0/0/1
ip address 192.168.2.254 255.255.255.0
ospf 1 router-id 4.4.4.4
area 0.0.0.2
network 10.1.3.0 0.0.0.3
network 192.168.2.0 0.0.0.255
vlink-peer 10.1.3.1
