I have instaled a 2950 switch and the customer whant to enable port security on 3 ports with a mac address.
The problem is when i write it comes with the error:
Command rejected: Not eligible for secure port.
I have loaded det newest ios in it, but it has det error stil.
the ios is : c2950-i6q4l2-mz.121-9.EA1d.bin
any idee on this ?
Try typing in "switchport mode access" and then type in the port security command. Also look at the following bug
On the interface(s) you are trying to
turn port-security on first configure 'switchport mode access' - this will
stop the switchport from using DTP to try and negotiate a trunk - which
conflicts with the port-security command.