Dears,
For the infrastructure security purpose, I configured port security feature on the port and DHCP snooping on the switch. After that I found the problem that when the PC plugged into the port first, it can obtain the ip address through DHCP, but if the PC moved to another port in the same VLAN on the same switch, it can’t obtain the ip address any more while other PCs plugged into the same port worked correctly.
what would be the reason to prevent the PC from obtaining the ip address. Port security feature or DHCP snooping?
Thanks,
Kirin