DHCP dai STARTUP configuration Analysis

Some of the content in DHCP configuration is started by dai. So here we will summarize the content in this regard. Next, let's take a detailed look at the specific operations of DHCP dai startup. The DHCP dai STARTUP configuration command is as follows:

 
 

  
  
Ip subnet-zero
  
  
Ip dhcp excluded-address 192.168.1.1
  
  
!
  
  
Ip dhcp pool test
  
  
Network 192.168.1.0 255.255.255.0
  
  
Default-router 192.168.1.1
  
  
Dns-server 192.168.1.1
  
  
Lease infinite
  
  
!
  
  
Ip dhcp snooping vlan 1 (based on DHCP)
  
  
Ip dhcp snooping information option allow-untrusted
  
  
Ip dhcp snooping database flash: snooping specifies the location where snooping data is stored)
  
  
Ip dhcp snooping starts DHCP snooping)
  
  
Ip arp inspection vlan 1 DHCP dai enabled)
  
  
Ip arp inspection validate src-mac dst-mac ip detection project)
  
  
!
  
  
!
  
  
!
  
  
Interface GigabitEthernet1/0/31
  
  
Switchport mode access
  
  
Ip arp inspection trust if you set the trust, you can change the IP address. Setting the untrust cannot change the IP address, because the DAI detection)
  
  
Spanning-tree portfast
  
  
!
  
  
Interface GigabitEthernet1/0/32
  
  
!
  
  
Nterface GigabitEthernet1/0/44
  
  
!
  
  
Interface GigabitEthernet1/0/45
  
  
Switchport mode access
  
  
Switchport port-security
  
  
Switchport port-security violation restrict
  
  
Spanning-tree portfast
  
  
Ip verify source port-security
  
  
!
  
  
!
  
  
Switch # sh ip arp inspection
 
 

The above is all the settings for DHCP dai to start.