1. Ensure the switch does not participate in VTP but forwards VTP advertisements received on trunk ports.
2. Ensure all non-trunking interfaces (Fa0/1 to Fa0/24) transition immediately to the forwarding state of Spanning-Tree.
3. Ensure all FastEthernet interfaces are in a permanent non-trunking mode.
4. Place FastEthernet interfaces 0/12 through 0/24 in VLAN 20

switch#conf t
switch(config)#vtp mode transparent
switch(config)#interface range fa0/1 - 24
switch(config-if-range)#switchport mode access
switch(config-if-range)#spanning-tree portfast
switch(config)#interface range fa0/12 - 24
switch(config-if-range)#switchport access vlan 20
switch(config-if-range)#end
switch# copy run start

VTP provides the following benefits:

 VLAN configuration consistency across the network
 Mapping scheme that allows a VLAN to be trunked over mixed media
 Accurate tracking and monitoring of VLANs
 Dynamic reporting of added VLANs across the network
 Plug-and-play configuration when adding new VLANs 

DOT 1x config to set up the

radius server

from console port on PC 1

Step1: Console to ASW1 from PC console 1
ASW1(config)#aaa new-model
ASW1(config)#radius-server host 172.120.39.46 key rad123
ASW1(config)#aaa authentication dot1x default group radius
ASW1(config)#dot1x system-auth-control
ASW1(config)#inter fastEthernet 0/1
ASW1(config-if)#switchport mode access
ASW1(config-if)#dot1x port-control auto
ASW1(config-if)#exit
ASW1#copy run start

Step2: Console to DSW1 from PC console 2 to configure

the distro to  for the ACL

DSW1(config)#ip access-list standard 10
DSW1(config-ext-nacl)#permit 172.120.40.0 0.0.0.255
DSW1(config-ext-nacl)#exit
DSW1(config)#vlan access-map PASS 10