En
Switch> enable
Switch# configure
Switch# show version
Switch (config)# hostname Switch
Switch# copy system:running-config nvram:startup-config
Switch (config)# interface vlan1
ip address 192.168.1.100 /24
Switch (config)# ip default-gateway 192.168.1.254
Switch (config)# ip name server 80.67.169.12
Switch# reload
Switch (config)# interface 1/0/1-1/0/4
Switch (config)# set clibanner "Access to this device is prohibited
Enter a banner message. End with the '"' symbol.
"
Switch (config)# no username guest
Switch (config)# username admin password "password"
Switch # show users
Switch (config)# crypto key generate rsa
Switch (config)# crypto key generate dsa
Switch (config)# ip ssh server enable
Switch (config)# vlan database
Switch (config-vlan)# vlan 20
Switch (config-vlan)# vlan name 20 ToIP
Switch (config-vlan)# vlan pvid 20
Switch (config)# interface 1/0/1-1/0/4
Switch (config-if)# switchport mode access
Switch (config-if)# switchport access vlan 20
Switch (config)# interface 1/0/1
Switch (config-if)# switchport mode trunk
Switch (config-if)# switchport trunk allowed vlan 1,20
Switch (config)# spanning-tree mode rstp
Switch (config)# spanning-tree mst priority 0 4096
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