VLAN的配置及其应用（以华为eNSP为例）

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基础知识介绍：

创建vlan：

[Huawei]vlan 2

 划⼊接⼝：

[Huawei]interface e0/0/1
[Huawei-Ethernet0/0/1]port link-type access 改模式为接⼊
[Huawei-Ethernet0/0/1]port default vlan 2 划⼊vlan 2

trunk的封装模式：
    类别          dot1q                     isl       大小            4b                      20b    支持协议      只⽀持tcp/ip           ⽀持所有协议       公有协议               cisco私有     虚拟⼦接⼝： 

[dhcp]interface g0/0/0.1
[dhcp-GigabitEthernet0/0/0.1]dot1q termination vid 2
[dhcp-GigabitEthernet0/0/0.1]ip address 192.168.1.1 24

调⽤：

[dhcp]interface g0/0/0.1
[dhcp-GigabitEthernet0/0/0.1]dhcp select global
[dhcp-GigabitEthernet0/0/0.1]arp broadcast enable

实验拓扑图：

一、为PC1、PC2、PC3、PC4下放指定IP

 为交换机设置vlan: 

[Huawei]vlan 2
[Huawei]vlan 3
[Huawei]vlan 4
[Huawei]vlan 5

[Huawei]interface e0/0/2
[Huawei-Ethernet0/0/2]port link-type access     
[Huawei-Ethernet0/0/2]port default vlan 2
[Huawei]interface e0/0/3
[Huawei-Ethernet0/0/3]port link-type access
[Huawei-Ethernet0/0/3]port default vlan 3
[Huawei]interface e0/0/4
[Huawei-Ethernet0/0/4]port link-type access
[Huawei-Ethernet0/0/4]port default vlan 4
[Huawei-Ethernet0/0/4]quit
[Huawei]interface e0/0/5
[Huawei-Ethernet0/0/5]port link-type access
[Huawei-Ethernet0/0/5]port default vlan 5
[Huawei-Ethernet0/0/5]quit

为交换机e0/0/1接口设置trunk

[Huawei]interface e0/0/1    
[Huawei-Ethernet0/0/1]port link-type trunk 
[Huawei-Ethernet0/0/1]port trunk allow-pass vlan all

 配置虚拟子接口IP并划分vlan：

[r1]interface g0/0/0.1    
[r1-GigabitEthernet0/0/0.1]ip address 172.16.1.1 24
[r1]interface g0/0/0.2
[r1-GigabitEthernet0/0/0.2]ip address 172.16.2.1 24
[r1]interface g0/0/0.3
[r1-GigabitEthernet0/0/0.3]ip address 172.16.3.1 24
[r1]interface g0/0/0.4
[r1-GigabitEthernet0/0/0.4]ip address 172.16.4.1 24

[r1]dhcp enable 
[r1]interface g0/0/0.1    
[r1-GigabitEthernet0/0/0.1]dot1q termination vid 2
[r1]interface g0/0/0.2
[r1-GigabitEthernet0/0/0.2]dot1q termination vid 3
[r1]interface g0/0/0.3
[r1-GigabitEthernet0/0/0.3]dot1q termination vid 4
[r1]interface g0/0/0.4
[r1-GigabitEthernet0/0/0.4]dot1q termination vid 5

 开启DHCP服务并配置dhcp

[r1]dhcp enable 

[r1]ip pool 1
[r1-ip-pool-1]network 172.16.1.0 mask 255.255.255.0
[r1-ip-pool-1]gateway-list 172.16.1.1    
[r1-ip-pool-1]dns-list 8.8.8.8
[r1-ip-pool-1]quit

[r1]ip pool 2
[r1-ip-pool-2]network 172.16.2.0 mask 255.255.255.0
[r1-ip-pool-2]gateway-list 172.16.2.1
[r1-ip-pool-2]dns-list 8.8.8.8
[r1-ip-pool-2]quit

[r1]ip pool 3
[r1-ip-pool-3]network 172.16.3.0 mask 255.255.255.0
[r1-ip-pool-3]dns-list 8.8.8.8
[r1-ip-pool-3]gateway-list 172.16.3.1
[r1-ip-pool-3]quit

[r1]ip pool 4
[r1-ip-pool-4]network 172.16.4.0 mask 255.255.255.0
[r1-ip-pool-4]gateway-list 172.16.4.1
[r1-ip-pool-4]dns-list 8.8.8.8
[r1-ip-pool-4]quit

调用：

[r1]interface g0/0/0.1
[r1-GigabitEthernet0/0/0.1]dhcp select global         
[r1-GigabitEthernet0/0/0.1]arp broadcast  enable 
[r1-GigabitEthernet0/0/0.1]quit
[r1]interface g0/0/0.2
[r1-GigabitEthernet0/0/0.2]dhcp select global
[r1-GigabitEthernet0/0/0.2]arp broadcast enable
[r1-GigabitEthernet0/0/0.2]quit
[r1]interface g0/0/0.3
[r1-GigabitEthernet0/0/0.3]dhcp select global
[r1-GigabitEthernet0/0/0.3]arp broadcast enable
[r1-GigabitEthernet0/0/0.3]quit
[r1]interface g0/0/0.4
[r1-GigabitEthernet0/0/0.4]dhcp select global
[r1-GigabitEthernet0/0/0.4]arp broadcast enable
[r1-GigabitEthernet0/0/0.4]quit

同样上述操作为PC5、PC6 下放指定IP。

二、为路由器个节点配置IP地址

以路由器r2为例：

[r2]interface LoopBack 0
[r2-LoopBack0]ip address 2.2.2.2 32
[r2]interface g0/0/0    
[r2-GigabitEthernet0/0/0]ip address 12.1.1.2 24
[r2]interface g0/0/1
[r2-GigabitEthernet0/0/1]ip address 23.1.1.1 24

三、利用OSPF协议，将三个路由器划进一个区域

以路由器r2为例：

[r2]ospf 100 router-id 2.2.2.2
[r2-ospf-100]area 1    
[r2-ospf-100-area-0.0.0.1]network  0.0.0.0 255.255.255.255

四、测试

** 以上过程即为所求，欢迎同行朋友予以斧正！万分感谢!**