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B. 第二阶段/拓扑练习/0903_项目实战 - 基础交换网络设计.md
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# 项目实战 - 基础交换网络设计 # 项目实战 - 基础交换网络设计
![image-20240903094302311](https://picgo-noriu.oss-cn-beijing.aliyuncs.com/Images/image-20240903094302311.png) ![image-20240903111352230](https://picgo-noriu.oss-cn-beijing.aliyuncs.com/Images/image-20240903111352230.png)
![image-20240902173915624](https://picgo-noriu.oss-cn-beijing.aliyuncs.com/Images/image-20240902173915624.png) - **需求**
- 公司有三个部门，财务部，市场部，技术部，为了内网安全，给每个部门单独划分一个VLAN
- 财务部：vlan10、市场部：vlan20、技术部：vlan30
- 公司所有部门，所有VLAN内的主机都通过DHCP服务器分发IP地址
- 每个部门，每个VLAN的网关地址都为，192.168.xx.254
- SW5中每个vlanif 虚接口地址都为 192.168.xx.254
- SW5通过vlanif50与DHCP进行通信，DHCP服务器管理IP：192.168.50.1
- 所有的PC都通过SW5与DHCP服务器进行通信，获取IP地址，所以SW5是DHCP中继
### 一、IP、VLAN、Routing ### 一、IP、VLAN、Routing
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``` ```
[HX-SW5]dhcp enable [HX-SW5]dhcp enable
[HX-SW5]int Vlanif 10 [HX-SW5]int Vlanif 10
[HX-SW5-Vlanif10]ip add 192.168.10.251 24 [HX-SW5-Vlanif10]ip add 192.168.10.254 24
[HX-SW5-Vlanif10]dhcp select relay [HX-SW5-Vlanif10]dhcp select relay
[HX-SW5-Vlanif10]dhcp relay server-ip 192.168.50.1 [HX-SW5-Vlanif10]dhcp relay server-ip 192.168.50.1
[HX-SW5-Vlanif10]int Vlanif 20 [HX-SW5-Vlanif10]int Vlanif 20
[HX-SW5-Vlanif20]ip add 192.168.20.251 24 [HX-SW5-Vlanif20]ip add 192.168.20.254 24
[HX-SW5-Vlanif20]dhcp select relay [HX-SW5-Vlanif20]dhcp select relay
[HX-SW5-Vlanif20]dhcp relay server-ip 192.168.50.1 [HX-SW5-Vlanif20]dhcp relay server-ip 192.168.50.1
[HX-SW5-Vlanif20]int Vlanif 30 [HX-SW5-Vlanif20]int Vlanif 30
[HX-SW5-Vlanif30]ip add 192.168.30.251 24 [HX-SW5-Vlanif30]ip add 192.168.30.254 24
[HX-SW5-Vlanif30]dhcp select relay [HX-SW5-Vlanif30]dhcp select relay
[HX-SW5-Vlanif30]dhcp relay server-ip 192.168.50.1 [HX-SW5-Vlanif30]dhcp relay server-ip 192.168.50.1
``` ```
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****
### 三、VLAN间通信
> 要实现vlan间通信需修改vlanif的IP地址，修改为DHCP分配的网关地址
#### 1、配置
- **HX - SW5**
```
[HX-SW5]int Vlanif 10
[HX-SW5-Vlanif10]ip add 192.168.10.254 24
[HX-SW5-Vlanif10]int Vlanif 20
[HX-SW5-Vlanif20]ip add 192.168.20.254 24
[HX-SW5-Vlanif20]int Vlanif 30
[HX-SW5-Vlanif30]ip add 192.168.30.254 24
```
#### 2、测试
- **PC1 PING PC2**
```
PC1>ping 192.168.20.253
Ping 192.168.20.253: 32 data bytes, Press Ctrl_C to break
From 192.168.20.253: bytes=32 seq=1 ttl=127 time=109 ms
From 192.168.20.253: bytes=32 seq=2 ttl=127 time=78 ms
From 192.168.20.253: bytes=32 seq=3 ttl=127 time=79 ms
From 192.168.20.253: bytes=32 seq=4 ttl=127 time=78 ms
From 192.168.20.253: bytes=32 seq=5 ttl=127 time=78 ms
--- 192.168.20.253 ping statistics ---
5 packet(s) transmitted
5 packet(s) received
0.00% packet loss
round-trip min/avg/max = 78/84/109 ms
```
- **PC1 PING PC3**
```
PC1>ping 192.168.30.253
Ping 192.168.30.253: 32 data bytes, Press Ctrl_C to break
From 192.168.30.253: bytes=32 seq=1 ttl=127 time=94 ms
From 192.168.30.253: bytes=32 seq=2 ttl=127 time=78 ms
From 192.168.30.253: bytes=32 seq=3 ttl=127 time=79 ms
From 192.168.30.253: bytes=32 seq=4 ttl=127 time=93 ms
From 192.168.30.253: bytes=32 seq=5 ttl=127 time=94 ms
--- 192.168.30.253 ping statistics ---
5 packet(s) transmitted
5 packet(s) received
0.00% packet loss
round-trip min/avg/max = 78/87/94 ms
```
- **PC2 PING PC3**
```
PC2>ping 192.168.30.253
Ping 192.168.30.253: 32 data bytes, Press Ctrl_C to break
From 192.168.30.253: bytes=32 seq=1 ttl=127 time=94 ms
From 192.168.30.253: bytes=32 seq=2 ttl=127 time=78 ms
From 192.168.30.253: bytes=32 seq=3 ttl=127 time=94 ms
From 192.168.30.253: bytes=32 seq=4 ttl=127 time=78 ms
From 192.168.30.253: bytes=32 seq=5 ttl=127 time=78 ms
--- 192.168.30.253 ping statistics ---
5 packet(s) transmitted
5 packet(s) received
0.00% packet loss
round-trip min/avg/max = 78/84/94 ms
```