What is the main use in dhcp snooping?

 DHCP snooping is use to prevent unauthorized (rogue) DHCP servers offering IP addresses to DHCP clients.

only trusted clients will get ip address

SEPRATE ENTITY OF EACH ITM IS CALLED  ACCOUNT .

In computer networking DHCP snooping is a series of techniques applied to ensure the security of an existing DHCP infrastructure.

When DHCP servers are allocating IP addresses to the clients on the LAN, DHCP snooping can be configured on LAN switches to harden the security on the LAN to allow only clients with specific IP/MAC addresses to have access to the network.