Imagine I have a Router(fa0/0)--connected to--->SwitchFa1/0/20 port.
I thought that I needed to do 'no switchport' in order to make the switchport work as a layer 3 interface and make my switch port communicate and forward traffic with the router. However, someone told me that the below would make this work without 'no switchport' and without an ip address.
Does the below make sense?
description switch port is connected to MYBACKUPROUTERWAN (VPN 1841 router)
switchport mode dynamic desirable
switchport access vlan 2