目录
原理概述
实验内容
实验目的
实验步骤
实验拓扑
实验编址
| 设备 | 接口 | IP地址 | 子网掩码 | 网关 |
| R1 | GE 0/0/1.1 | 192.168.1.254 | 255.255.255.0 | N/A |
| GE 0/0/1.2 | 192.168.2.254 | 255.255.255.0 | N/A | |
| GE 0/0/1.3 | 192.168.3.254 | 255.255.255.0 | N/A | |
| PC1 | Ethernet 0/0/1 | 192.168.1.1 | 255.255.255.0 | 192.168.1.254 |
| PC2 | Ethernet 0/0/1 | 192.168.2.1 | 255.255.255.0 | 192.168.2.254 |
| PC3 | Ethernet 0/0/1 | 192.168.3.1 | 255.255.255.0 | 192.168.3.254 |
配置步骤
创建VLAN并配置Access、Trunk接口
为了保障各部门的信息安全，需要保证隔离不同部门间的二层通信，规划各部门的终端属于不同的VLAN。
第一步：创建VLAN并配置Access、Trunk接口
为了保障各部门的信息安全，需要保证隔离不同部门间的二层通信，规划
各部门的终端属于不同的VLAN。
在S2上创建VLAN10和VLAN20，并连接PC1和PC2的接口配置为Access接口并划分
到相应的VLAN中
[S2]vlan 10
[S2-vlan10]description HR
[S2-vlan10]vlan 20
[S2-vlan20]description market
[S2-vlan20]interface e0/0/1
[S2-Ethernet0/0/1]port link-type access
[S2-Ethernet0/0/1]port default vlan 10
[S2-Ethernet0/0/1]interface e0/0/2
[S2-Ethernet0/0/2]port link-type access
[S2-Ethernet0/0/2]port default vlan 20
[S2-Ethernet0/0/2]
S3上创建VLAN30，把连接PC3的接口设置为Access接口，并划分到VLAN30
[S3]vlan 30
[S3-vlan30]description mannger
[S3-vlan30]interface e0/0/1
[S3-Ethernet0/0/1]port link-type access
[S3-Ethernet0/0/1]port default vlan 30
[S3-Ethernet0/0/1]
交换机之间或交换机和路由器之间相连的接口需要传递多个vlan信息，需要配
置成Trunk接口
[S2-Ethernet0/0/2]interface g0/0/2
[S2-GigabitEthernet0/0/2]port link-type trunk
[S2-GigabitEthernet0/0/2]port trunk allow-pass vlan all
[S2-GigabitEthernet0/0/2]
[S3-Ethernet0/0/1]interface g0/0/2
[S3-GigabitEthernet0/0/2]port link-type trunk
[S3-GigabitEthernet0/0/2]port trunk allow-pass vlan all
在S1上创建vlan10、vlan20和vlan30，并配置交换机和路由器相连的接口为
trunk，允许所有vlan通过
<Huawei>undo ter mon
Info: Current terminal monitor is off.
<Huawei>sys
[Huawei]sysname S1
[S1]vlan 10
[S1-vlan10]vlan batch 20 30
[S1]interface g0/0/2
[S1-GigabitEthernet0/0/2]port link-type trunk
[S1-GigabitEthernet0/0/2]port trunk allow-pass vlan all
[S1-GigabitEthernet0/0/2]interface g0/0/3
[S1-GigabitEthernet0/0/3]port link-type trunk
[S1-GigabitEthernet0/0/3]port trunk allow-pass vlan all
[S1-GigabitEthernet0/0/3]interface g0/0/1
[S1-GigabitEthernet0/0/1]port link-type trunk
[S1-GigabitEthernet0/0/1]port trunk allow-pass vlan all
[S1-GigabitEthernet0/0/1]
配置路由器子接口和IP地址
第二步：配置路由器子接口和IP地址
[Huawei]sysname R1
[R1]interface g0/0/1.1
[R1-GigabitEthernet0/0/1.1]ip address 192.168.1.254 24
[R1-GigabitEthernet0/0/1.1]interface g0/0/1.2
[R1-GigabitEthernet0/0/1.2]ip address 192.168.2.254 24
[R1-GigabitEthernet0/0/1.2]interface g0/0/1.3
[R1-GigabitEthernet0/0/1.3]ip address 192.168.3.254 24
[R1-GigabitEthernet0/0/1.3]配置路由器子接口封装VLAN
在R1的子接口封装上相应的vlan，并开启子接口的ARP广播功能。
使用dot1q termination vid命令配置子接口对一层tag 报文的终结功能。即配置该命令后，路由器子接口在接收带有VLAN tag的报文时，将剥掉tag 进行三层转发，在发送报文时，会将与该子接口对应VLAN的VLAN tag添加到报文中。
第三步：配置路由器子接口封装VLAN
[R1]interface g0/0/1.1
[R1-GigabitEthernet0/0/1.1]dot1q termination vid 10
[R1-GigabitEthernet0/0/1.1]arp broadcast enable //开启子接口的ARP广播功能。
若不配置，会导致该子接口无法主动发送ARP广播报文，以及向外转发IP报文。
[R1-GigabitEthernet0/0/1.1]interface g0/0/1.2
[R1-GigabitEthernet0/0/1.2]dot1q termination vid 20
[R1-GigabitEthernet0/0/1.2]arp broadcast enable
[R1-GigabitEthernet0/0/1.2]interface g0/0/1.3
[R1-GigabitEthernet0/0/1.3]dot1q termination vid 30
[R1-GigabitEthernet0/0/1.3]arp broadcast enable
[R1-GigabitEthernet0/0/1.3]q
[R1]display ip interface brief //查看R1上接口状态
*down: administratively down
^down: standby
(l): loopback
(s): spoofing
The number of interface that is UP in Physical is 5
The number of interface that is DOWN in Physical is 2
The number of interface that is UP in Protocol is 4
The number of interface that is DOWN in Protocol is 3
Interface IP Address/Mask Physical Protocol
GigabitEthernet0/0/0 unassigned down down
GigabitEthernet0/0/1 unassigned up down
GigabitEthernet0/0/1.1 192.168.1.254/24 up up
GigabitEthernet0/0/1.2 192.168.2.254/24 up up
GigabitEthernet0/0/1.3 192.168.3.254/24 up up
GigabitEthernet0/0/2 unassigned down down
NULL0 unassigned up up(s)
[R1]
[R1]display ip routing-table //查看R1的路由表
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: Public
Destinations : 13 Routes : 13
Destination/Mask Proto Pre Cost Flags NextHop Interface
192.168.1.0/24 Direct 0 0 D 192.168.1.254 GigabitEthernet
0/0/1.1
192.168.1.254/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/1.1
192.168.1.255/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/1.1
192.168.2.0/24 Direct 0 0 D 192.168.2.254 GigabitEthernet
0/0/1.2
192.168.2.254/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/1.2
192.168.2.255/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/1.2
192.168.3.0/24 Direct 0 0 D 192.168.3.254 GigabitEthernet
0/0/1.3
[R1]测试结果
PC1分别测试与PC2和PC3之间的连通性。
