一 需求分析

本实验的目的在于建立小型局域网。由于公司由财政部、人事部、科技部三个部门组成，分布在同一个交换机下。设计以下网络：三个个部门使用两台交换机连接，然后连接到汇聚交换机，再通过路由器与外网以及其他部门网络相连。为了控制网络上的广播风暴，增加网络的安全性，在交换机上需要设置VLAN，公司内部使用动态路由OSPF协议，所有主机均可通过dhcp自动获取ip地址。

二 规划拓扑

• 划分vlan：

• ip地址规划：

• 汇聚交换机配置dhcp功能，员工无需手动配置ip

• 采用一个汇聚交换机，两个二层交换机，汇聚交换机开启dhcp服务，合理划分vlan、利用trunk和access口

三 拓扑图

四 实验配置

4.1 二层交换机配置

无脑trunk和access就行了

LSW2：

[Huawei]vlan batch 10 20 30
[Huawei-Ethernet0/0/2]int e0/0/1
[Huawei-Ethernet0/0/1]port link-type trunk 
[Huawei-Ethernet0/0/1]port trunk allow-pass vlan all 
[Huawei-Ethernet0/0/2]int e0/0/2
[Huawei-Ethernet0/0/1]port link-type trunk 
[Huawei-Ethernet0/0/1]port trunk allow-pass vlan all 
[Huawei-Ethernet0/0/3]port link-type access   
[Huawei-Ethernet0/0/3]port default vlan 10
[Huawei-Ethernet0/0/4]port link-type access   
[Huawei-Ethernet0/0/4]port default vlan 20

LSW3：

[Huawei]vlan batch 10 20 30
[Huawei-Ethernet0/0/2]int e0/0/1
[Huawei-Ethernet0/0/1]port link-type trunk 
[Huawei-Ethernet0/0/1]port trunk allow-pass vlan all 
[Huawei-Ethernet0/0/1]int e0/0/2
[Huawei-Ethernet0/0/2]port link-type trunk 
[Huawei-Ethernet0/0/2]port trunk allow-pass vlan all 
[Huawei-Ethernet0/0/1]int e0/0/3
[Huawei-Ethernet0/0/3]port link-type access   
[Huawei-Ethernet0/0/3]port default vlan 10
[Huawei-Ethernet0/0/3]int e0/0/4
[Huawei-Ethernet0/0/4]port link-type access   
[Huawei-Ethernet0/0/4]port default vlan 20

LSW1:

[Huawei]vlan batch 10 20 30 99
[Huawei-GigabitEthernet0/0/2]int G0/0/1
[Huawei-GigabitEthernet0/0/2]port link-type access
[Huawei-GigabitEthernet0/0/2]port default vlan 99
[Huawei-GigabitEthernet0/0/1]int G0/0/2
[Huawei-GigabitEthernet0/0/2]port link-type trunk 
[Huawei-GigabitEthernet0/0/2]port trunk allow-pass vlan all 
[Huawei-GigabitEthernet0/0/2]int G0/0/3
[Huawei-GigabitEthernet0/0/3]port link-type trunk 
[Huawei-GigabitEthernet0/0/3]port trunk allow-pass vlan all 

4.2配置vlanif口

LSW1:

interface Vlanif10
 ip address 192.168.10.254 255.255.255.0
interface Vlanif20
 ip address 192.168.20.254 255.255.255.0
interface Vlanif30
 ip address 192.168.30.254 255.255.255.0

4.3配置dhcp服务

LSW1:

配置全局地址池

ip pool vlan10//配置全局地址池
 gateway-list 192.168.10.254
 network 192.168.10.0 mask 255.255.255.0
#
ip pool vlan20
 gateway-list 192.168.20.254
 network 192.168.20.0 mask 255.255.255.0
#
ip pool vlan30
 gateway-list 192.168.30.254
 network 192.168.30.0 mask 255.255.255.0
#

在vlanif口开启开启dhcp

interface Vlanif10
 ip address 192.168.10.254 255.255.255.0
 dhcp select global
#
interface Vlanif20
 ip address 192.168.20.254 255.255.255.0
 dhcp select global
#
interface Vlanif30
 ip address 192.168.30.254 255.255.255.0
 dhcp select global

4.4 公司内用ospf内部网关协议进行通信

LSW1:

[Huawei]ospf 1   
[Huawei-ospf-1]area 0
[Huawei]int vlan 10 
[Huawei-Vlanif10]ospf enable 1 area 0
[Huawei-Vlanif10]int vlan 20  
[Huawei-Vlanif20]ospf enable 1 area 0
[Huawei-Vlanif20]int vlan 30  
[Huawei-Vlanif30]ospf enable 1 area 0
[Huawei-Vlanif30]int vlan 99  
[Huawei-Vlanif99]ospf enable 1 area 0

R1:

[Huawei]ospf 1   
[Huawei-ospf-1]area 0
[Huawei]int g0/0/1
[Huawei-GigabitEthernet0/0/1]ospf enable area 0
[Huawei]int g0/0/0  
[Huawei-GigabitEthernet0/0/0]ospf enable area 0

R2:

[Huawei]ospf 1   
[Huawei-ospf-1]area 0
[Huawei]int g0/0/0  
[Huawei-GigabitEthernet0/0/0]ospf enable area 0
[Huawei]int lo0  
[Huawei-LoopBack0]ip address 11.11.11.11 32//在R2上配置lo0，ip地址为11.11.11.11/32，用于测试
[Huawei-LoopBack0]ospf enable area 0

实验完成

检查实验结果

pc1：

pc2：

pc3：

pc4：

实验成功