VLAN的基础实验

最新推荐文章于 2026-01-03 20:00:00 发布

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#网络 #智能路由器 #运维

该实验涉及VLAN的创建和接口配置，通过在交换机上设置VLAN，将接口划入不同VLAN，配置Trunk干道，然后在路由器上进行子接口配置，启用ARP广播和DHCP服务，以实现不同VLAN间的通信和PC自动获取IP地址。

VLAN实验

实验图

在这里插入图片描述

需求

判断pc是否在同一网段
划分广播域，全网可达
先配交换机

实验与配置内容

创建VLAN

[sw1]vlan batch 10 20

[sw2]vlan batch 10 20

将接口划入VLAN

[sw1-GigabitEthernet0/0/1]port link-type access 
[sw1-GigabitEthernet0/0/2]port link-type access
[sw1-GigabitEthernet0/0/1]p d v 10
[sw1-GigabitEthernet0/0/2]p d v 20

[sw2-GigabitEthernet0/0/1]port link-type access
[sw2-GigabitEthernet0/0/2]port link-type access
[sw2-GigabitEthernet0/0/1]p d v 10
[sw2-GigabitEthernet0/0/2]p d v 20

配置Trunk干道

[sw1-GigabitEthernet0/0/3]port link-type trunk 
[sw1-GigabitEthernet0/0/3]port trunk allow-pass vlan 10 20

[sw2-GigabitEthernet0/0/3]port link-type trunk
[sw2-GigabitEthernet0/0/3]port trunk allow-pass vlan 10 20

路由器配置

[r1]int g 0/0/0.1
[r1-GigabitEthernet0/0/0.1]ip a 192.168.1.10 24
[r1-GigabitEthernet0/0/0.1]dot1q termination vid 10  ----声明该子接口所能处理的VLAN标签
[r1-GigabitEthernet0/0/0.1]arp broadcast enable  -----开启子接口ARP广播功能

[r1]int g 0/0/0.2
[r1-GigabitEthernet0/0/0.2]ip a 192.168.2.10 24
[r1-GigabitEthernet0/0/0.2]dot1q termination vid 20
[r1-GigabitEthernet0/0/0.2]arp broadcast enable

[r1]int g 0/0/1.1
[r1-GigabitEthernet0/0/1.1]ip a 192.168.3.10 24
[r1-GigabitEthernet0/0/1.1]dot1q termination vid 10
[r1-GigabitEthernet0/0/1.1]arp broadcast enable

[r1]int g 0/0/1.2
[r1-GigabitEthernet0/0/1.2]ip a 192.168.4.10 24
[r1-GigabitEthernet0/0/1.2]dot1q termination vid 20
[r1-GigabitEthernet0/0/1.2]arp broadcast enable

开启DHCP并配置地址池

[r1]dhcp enable 
[r1]ip pool 1
[r1-ip-pool-1]network 192.168.1.0 mask 24
[r1-ip-pool-1]gateway-list 192.168.1.10
[r1-ip-pool-1]dns-list 8.8.8.8

[r1]ip pool 2
[r1-ip-pool-2]network 192.168.2.0 mask 24
[r1-ip-pool-2]gateway-list 192.168.2.10
[r1-ip-pool-2]dns-list 8.8.8.8

[r1]ip pool 3
[r1-ip-pool-3]network 192.168.3.0 mask 24
[r1-ip-pool-3]gateway-list 192.168.3.10
[r1-ip-pool-3]dns-list 8.8.8.8

[r1]ip pool 4
[r1-ip-pool-4]network 192.168.4.0 mask 24
[r1-ip-pool-4]gateway-list 192.168.4.10
[r1-ip-pool-4]dns-list 8.8.8.8

[r1]int g 0/0/0.1
[r1-GigabitEthernet0/0/0.1]dhcp select global
[r1-GigabitEthernet0/0/0.1]int g 0/0/0.2
[r1-GigabitEthernet0/0/0.2]dhcp select global
[r1-GigabitEthernet0/0/0.2]int g 0/0/1.1
[r1-GigabitEthernet0/0/1.1]dhcp select global
[r1-GigabitEthernet0/0/1.1]int g 0/0/1.2
[r1-GigabitEthernet0/0/1.2]dhcp select global