Command for Switch port

[Khundmir4cisco]

I want to lock the switchport in such a way that it only allow one end device to be connected and no two more devices are connected using a AP or another switch or a hub. I don't want to reserve MAC address for the switchport. Instead, I just want to make sure only one end device is connected irrelevant of Mac. 

[acampbell · Accepted solution]

Hi,

If you are going to connect a device to your switch port via another switch you will need to allow
at least 2 mac to attach as the switch or AP will have a mac too.

Something like this (depending on swith type and IOS)

!
interface fast 0/10
description *** MY SECURE PORT ***
switchport mode access
switchport access vlan 10
switchport port-security
switchport port-security max 2
no shut
!

Hope this helps
Regards
Alex