I enabled Port Security on the switch.
> conf t > int fa 0/3 > switchport mode access > switchport port-security maximum 1 > switchport port-security mac sticky
And to test if this works, i connected a cable to this port and pinged, then the port got blocked as expected.
Now i reconnected the original desktop (the one which was connected before- the one which is suppose to work with this port). and I am unable to ping by connecting to this port.
I think, the port is, and i am not allowed to plug in even the PC (that i am suppose to plugin). So how can i make this work (Bring the port up for the port 0/3 which will work for the mac address i assigned previously)
note: i am using packet tracer