2024年8月29日 11:03:16

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+# 子网划分
+
+![image-20240829103825275](https://picgo-noriu.oss-cn-beijing.aliyuncs.com/Images/image-20240829103825275.png)
+
+### 一、VLAN
+
+- **SW2**
+
+  ```
+  [SW2]vlan batch 10 20
+  [SW2]int g0/0/2
+  [SW2-GigabitEthernet0/0/2]port link-type access 
+  [SW2-GigabitEthernet0/0/2]port default vlan 10
+  [SW2-GigabitEthernet0/0/2]int g0/0/3	
+  [SW2-GigabitEthernet0/0/3]port link-type access 
+  [SW2-GigabitEthernet0/0/3]port default vlan 20
+  [SW2-GigabitEthernet0/0/3]int g0/0/1	
+  [SW2-GigabitEthernet0/0/1]port link-type trunk 	
+  [SW2-GigabitEthernet0/0/1]port trunk allow-pass vlan all
+  ```
+
+- **SW3**
+
+  ```
+  [SW3]vlan batch 30 40
+  [SW3]int g0/0/2   
+  [SW3-GigabitEthernet0/0/2]port link-type access   
+  [SW3-GigabitEthernet0/0/2]port default vlan 30
+  [SW3-GigabitEthernet0/0/2]int g0/0/3  
+  [SW3-GigabitEthernet0/0/3]port link-type access     
+  [SW3-GigabitEthernet0/0/3]port default vlan 40
+  [SW3-GigabitEthernet0/0/3]int g0/0/1   
+  [SW3-GigabitEthernet0/0/1]port link-type trunk     
+  [SW3-GigabitEthernet0/0/1]port trunk allow-pass vlan all
+  ```
+
+### 二、DHCP
+
+- **SW1**
+
+  ```
+  [SW1]dhcp enable  
+  [SW1]ip pool vlan10   
+  [SW1-ip-pool-vlan10]network 192.168.100.0 mask 26
+  [SW1-ip-pool-vlan10]gateway-list 192.168.100.62
+  [SW1-ip-pool-vlan10]dns-list 223.5.5.5 223.6.6.6
+  [SW1-ip-pool-vlan10]ip pool vlan20  
+  [SW1-ip-pool-vlan20]network 192.168.100.64 mask 26
+  [SW1-ip-pool-vlan20]gateway-list 192.168.100.126
+  [SW1-ip-pool-vlan20]dns-list 223.5.5.5 223.6.6.6
+  [SW1-ip-pool-vlan20]ip pool vlan30
+  [SW1-ip-pool-vlan30]network 192.168.100.128 mask 26
+  [SW1-ip-pool-vlan30]gateway-list 192.168.100.190
+  [SW1-ip-pool-vlan30]dns-list 223.5.5.5 223.6.6.6
+  [SW1-ip-pool-vlan30]ip pool vlan40
+  [SW1-ip-pool-vlan40]network 192.168.100.192 mask 26
+  [SW1-ip-pool-vlan40]gateway-list 192.168.100.254
+  [SW1-ip-pool-vlan40]dns-list 223.5.5.5 223.6.6.6
+  [SW1-ip-pool-vlan40]quit   
+  [SW1]port-group group-member g0/0/1 g0/0/2
+  [SW1-port-group]port link-type trunk 
+  [SW1-port-group]port trunk allow-pass vlan all
+  [SW1-port-group]quit     
+  [SW1]vlan batch 10 20 30 40
+  [SW1]int vlan 10
+  [SW1-Vlanif10]ip add 192.168.100.62 26
+  [SW1-Vlanif10]dhcp select global 
+  [SW1-Vlanif10]int vlan 20
+  [SW1-Vlanif20]ip add 192.168.100.126 26
+  [SW1-Vlanif20]dhcp select global
+  [SW1-Vlanif20]int vlan 30
+  [SW1-Vlanif30]ip add 192.168.100.190 26
+  [SW1-Vlanif30]dhcp select global
+  [SW1-Vlanif30]int vlan 40
+  [SW1-Vlanif40]ip add 192.168.100.254 26
+  [SW1-Vlanif40]dhcp select global
+  ```
+
+### 三、测试
+
+- **PC1**
+
+  ```
+  PC1>ipconfig
+  
+  Link local IPv6 address...........: fe80::5689:98ff:fe2c:74ae
+  IPv6 address......................: :: / 128
+  IPv6 gateway......................: ::
+  IPv4 address......................: 192.168.100.61
+  Subnet mask.......................: 255.255.255.192
+  Gateway...........................: 192.168.100.62
+  Physical address..................: 54-89-98-2C-74-AE
+  DNS server........................: 223.5.5.5
+                                      223.6.6.6
+  ```
+
+- **PC2**
+
+  ```
+  PC2>ipconfig
+  
+  Link local IPv6 address...........: fe80::5689:98ff:fe83:1712
+  IPv6 address......................: :: / 128
+  IPv6 gateway......................: ::
+  IPv4 address......................: 192.168.100.125
+  Subnet mask.......................: 255.255.255.192
+  Gateway...........................: 192.168.100.126
+  Physical address..................: 54-89-98-83-17-12
+  DNS server........................: 223.5.5.5
+                                      223.6.6.6
+  ```
+
+- **PC3**
+
+  ```
+  PC3>ipconfig
+  
+  Link local IPv6 address...........: fe80::5689:98ff:fe78:79be
+  IPv6 address......................: :: / 128
+  IPv6 gateway......................: ::
+  IPv4 address......................: 192.168.100.189
+  Subnet mask.......................: 255.255.255.192
+  Gateway...........................: 192.168.100.190
+  Physical address..................: 54-89-98-78-79-BE
+  DNS server........................: 223.5.5.5
+                                      223.6.6.6
+  ```
+
+- **PC4**
+
+  ```
+  PC4>ipconfig
+  
+  Link local IPv6 address...........: fe80::5689:98ff:fe38:46a7
+  IPv6 address......................: :: / 128
+  IPv6 gateway......................: ::
+  IPv4 address......................: 192.168.100.253
+  Subnet mask.......................: 255.255.255.192
+  Gateway...........................: 192.168.100.254
+  Physical address..................: 54-89-98-38-46-A7
+  DNS server........................: 223.5.5.5
+                                      223.6.6.6
+  ```
+
+  
+