Cisco IOS command sheet

You don’t need to write the full command, just enough to be unique

<TAB> to complete the command

? to show all possible completions

Command Modes

EXEC Mode	Prompt	Enter	Exit
User	`>`	the default
Privileged	`#`	`enable`	`exit`
Global configuration	‘(config)#`	`configure terminal`	`end`
Interface	`(config-if)#`	`interface <interface>`	`exit`
VLAN	`(config-vlan)#`	`vlan <number>`	`exit`
Access list	`(config-ext-nacl)#`	`access-list <number> <permit/deny> <protocol> <source> <destination>`	`exit`

Run these commands from the global configuration mode.

hostname <NAME> to assign the device a memorable name

enable password <password> create a password

Run these commands from the global configuration mode.

show ip interface brief to show all interfaces

interface <interface> to enter interface configuration mode

ip address <IP> <subnet> to assign an IP address to an interface

no shutdown to enable an interface

switchport mode access to set the interface to access mode

switchport access vlan <VLAN_ID> to assign the interface to a specific VLAN

interface range <interface_range> to configure multiple interfaces at once

Run these commands from the global configuration mode.

show vlan brief to show all VLANs

vlan <number> to enter VLAN configuration mode

name <name> to assign a name to a VLAN

Run these commands from the global configuration mode.

show access-lists to show all access lists

access-list <number> permit <protocol> <source> <destination> to create an access list

access-group <number> in/out to apply an access list to an interface

ip access-list extended <name> to create a named access list

permit <protocol> <source> <destination> to permit traffic in the access list

deny <protocol> <source> <destination> to deny traffic in the access list

interface <interface> to apply the access list to an interface

ip access-group <name> in/out to apply the access list to an interface