Cyber_Security_Notes/B. 第二阶段/拓扑练习/0903_项目实战C - 内外网互联.md
2024-09-03 16:48:06 +08:00

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# 项目实战 - 内外网互联
![image-20240903154304067](https://picgo-noriu.oss-cn-beijing.aliyuncs.com/Images/image-20240903154304067.png)
- **需求**
- SW5通过vlanif15和出口设备R1互联
- SW6通过vlanif16和出口设备R1互联
- 在SW5/SW6与出口设备R1中配置路由实现SW5/SW6与R1的互通
- 公司出口设备 R1连接外网公司租用的公网网段100.1.1.0/29
- 公司内网主机有访问外网的需求所以在R1上配置默认路由下一跳为公网网关
- 使用ACL来定义允许那些部门和网段访问外网
- 部署地址池NAT或者Easy-ip实现内网主机访问外网
- 配置VRRP的上行链路跟踪
### 一、IP & VLAN & Routing
- **AR1**
```
[AR1]int g0/0/0
[AR1-GigabitEthernet0/0/0]ip add 192.168.15.1 24
[AR1-GigabitEthernet0/0/0]int g0/0/1
[AR1-GigabitEthernet0/0/1]ip add 192.168.16.1 24
[AR1-GigabitEthernet0/0/1]int g0/0/2
[AR1-GigabitEthernet0/0/2]ip add 100.1.1.1 29
```
- **AR2**
```
[AR2]int g0/0/0
[AR2-GigabitEthernet0/0/0]ip add 100.1.1.2 29
[AR2-GigabitEthernet0/0/0]int g0/0/1
[AR2-GigabitEthernet0/0/1]ip add 200.1.1.254 24
```