Why the clients on a DHCP snooping network cannot obtain IP addresses after they move

On a network using DHCP snooping-enabled S series switches, a binding table is generated on the switch after a user obtains an IP address. If the user is switched to another port of the switch without releasing the IP address, the user may fail to obtain this IP address and access the network.
If a user attempts to apply for the same IP address with the same MAC address on a different port after the corresponding binding table has been generated, the switch cannot distinguish whether the user has switched to another port or an unauthorized user attempts to access the network. As a result, the switch does not modify the binding table, resulting in the user's failure to obtain the IP address. To solve this problem, you can delete the binding table from the switch.

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