子网划分以及DHCP配置教学

公司网段192.168.22.0/24，

生产部VLAN10有主机50台，销售部VLAN20有90台，

财务部VLAN30有15台，客服部VLAN40有26台，

要求划分子网实现网络互通。

192.168.22.0/24

先关注主机数量最多的子网

VLAN20 90台可用主机

2的n次方 大于等于90+2

n=7

新网段的网络位是25个，主机位是7个

子网掩码为：255.255.255.1000000/255.255.255.128

子网数量2个 255.255.255.0000000/255.255.255.10000000

子网1：192.168.22.0/25,给VLAN20使用

可用网络地址：1-126

子网2:192.168.22.128/25给VLAN10使用

可用网络地址：129-192

主机数量为50，VLAN10

 2的n次方 大于等于 50+2 ；

  n >=6，所以最终 N 为 6 ；

   新网段的网络位的个数为 ： 26个；

  子网掩码为：255.255.255.192

  子网的数量为2个，分别是：

       子网 192.168.22.128/26     给VLAN30

         可用网络地址 192-222

       子网 192.168.22.192/26      给VLAN40

         可用网络地址 192-254

sw2配置

创建VLAN10 20

Huawei>

sys

  

[Huawei]vlan batch 10 20                   创建VLAN10 20

[Huawei]inter gi 0/0/1

     

[Huawei-GigabitEthernet0/0/1]undo shutdown      开启端口

[Huawei-GigabitEthernet0/0/1]port link-type access

 

[Huawei-GigabitEthernet0/0/1]port default vlan 10     加入VLAN10

[Huawei-GigabitEthernet0/0/1]q

[Huawei]inter gi0/0/2

     

[Huawei-GigabitEthernet0/0/2]undo shutdown

[Huawei-GigabitEthernet0/0/2]port link-type access

   

[Huawei-GigabitEthernet0/0/2]port default vlan 20

[Huawei-GigabitEthernet0/0/2]q

[Huawei]inter gi0/0/3                                   此端口配置trunk 允许所有VLAN通过

 

[Huawei-GigabitEthernet0/0/3]undo shutdown

Info: Interface GigabitEthernet0/0/3 is not shutdown.     

[Huawei-GigabitEthernet0/0/3]port link-type trunk  

[Huawei-GigabitEthernet0/0/3]port trunk allow-pass vlan all

sw3配置

sys

  

[Huawei]vlan batch 30 40                  创建VLAN30  40

[Huawei]inter gi0/0/1

    

[Huawei-GigabitEthernet0/0/1]undo shutdown       

[Huawei-GigabitEthernet0/0/1]port link-type access

 

[Huawei-GigabitEthernet0/0/1]port default vlan 30

[Huawei-GigabitEthernet0/0/1]q

[Huawei]inter gi 0/0/2

[Huawei-GigabitEthernet0/0/2]

[Huawei-GigabitEthernet0/0/2]undo shutdown

[Huawei-GigabitEthernet0/0/2]port link-type access

  

[Huawei-GigabitEthernet0/0/2]port default vlan 40

[Huawei-GigabitEthernet0/0/2]q

[Huawei]inter gi0/0/3

     

[Huawei-GigabitEthernet0/0/3]undo shutdown

[Huawei-GigabitEthernet0/0/3]port link-type trunk

    

[Huawei-GigabitEthernet0/0/3]port trunk allow-pass vlan all

sw1配置

sys                

[Huawei]vlan batch 10 20 30 40                        创建VLAN10 20 30 40 

[Huawei]inter vlan 10

[Huawei-Vlanif10]ip address 192.168.22.190 255.255.255.192       给每个VLAN配置IP

[Huawei-Vlanif10]inter vlan 20

[Huawei-Vlanif20]ip address 192.168.22.126 255.255.255.128

[Huawei-Vlanif20]inter vlan 30

.

[Huawei-Vlanif30]ip address 192.168.22.222 255.255.255.224

[Huawei]inter vlan 40  

[Huawei-Vlanif40]ip address 192.168.22.253 255.255.255.224  

[Huawei-Vlanif40]undo shutdown

[Huawei-Vlanif40]q

[Huawei]inter gi 0/0/1

   

[Huawei-GigabitEthernet0/0/1]undo shutdown     连接交换机的端口加入trunk

 

[Huawei-GigabitEthernet0/0/1]port link-type trunk

   

[Huawei-GigabitEthernet0/0/1]port trunk allow-pass vlan all

[Huawei-GigabitEthernet0/0/1]q

[Huawei]inter GigabitEthernet 0/0/2

     

[Huawei-GigabitEthernet0/0/2]undo shutdown

[Huawei-GigabitEthernet0/0/2]port link-type trunk

[Huawei-GigabitEthernet0/0/2]port trunk allow-pass vlan all

[Huawei-GigabitEthernet0/0/2]q

配置DHCP  创建地址池

[Huawei]ip pool 01    地址池名称01                 

[Huawei-ip-pool-01]gateway 192.168.22.190      配置网关

    

[Huawei-ip-pool-01]network 192.168.22.128 mask 255.255.255.192    配置网段和子网掩码

 

[Huawei-ip-pool-01]dns-list 1.1.1.1                           配置DNS

   

[Huawei-ip-pool-01]lease day 1                                  租用期  1天

[Huawei-ip-pool-01]q

[Huawei]ip pool 02        创建地址池 02

[Huawei-ip-pool-02]gateway-list 192.168.22.126

 

[Huawei-ip-pool-02]network 192.168.22.0 mask 255.255.255.128

[ 

[Huawei-ip-pool-02]dns-list 2.2.2.2

  

[Huawei-ip-pool-02]lease day 2

[Huawei-ip-pool-02]q

创建地址池03

[Huawei]ip pool 03

[Huawei-ip-pool-03]gateway-list 192.168.22.222

    

[Huawei-ip-pool-03]network 192.168.22.192 mask 255.255.255.224

 

[Huawei-ip-pool-03]dns-list 3.3.3.3

   

[Huawei-ip-pool-03]lease day 3

[Huawei-ip-pool-03]q

创建地址池04

[Huawei]ip pool 04

[Huawei-ip-pool-04]gateway-list 192.168.22.253

    

[Huawei-ip-pool-04]network 192.168.22.224 mask 255.255.255.224

[Huawei-ip-pool-04]dns-list 4.4.4.4

[Huawei-ip-pool-04]lease day 3

[Huawei-ip-pool-04] q

[Huawei]dhcp enable           开启DHCP

[Huawei]inter vlan 10   

[Huawei-Vlanif10]dhcp select global       每个VLAN激活DHCP

[Huawei-Vlanif10]inter vlan 10

[Huawei-Vlanif10]dhcp select global

[Huawei-Vlanif10]inter vlan 20

[Huawei-Vlanif20]dhcp select global

[Huawei-Vlanif20]inter vlan 30

[Huawei-Vlanif30]dhcp select global

[Huawei-Vlanif30]inter vlan 40

[Huawei-Vlanif40]dhcp select global

[Huawei-Vlanif40]q

验证是否获取IP，是否全网通