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NET-126 Commands Cheat Sheet by

List of commands for exam prep

[Router] Basic Config­uration

Short Command
Full-L­ength Command
 
ho R1
 
hostname R1
 
no ip dom lo
 
no ip domain­-lookup
 
ena sec class
 
enable secret class
 
ser pass
 
service password-encryption
 
banner motd #Authorized access ONLY!#
 
banner motd #[Text]#
 
login blo 120 a 3 w 30
 
login block-for 120 attempts 3 within 30
  
lin con 0
 
line console 0
 
pass cisco
 
password cisco
 
login
 
login
 
logg sync
 
logging synchr­onous
 
exec-t 5 0
 
exec-t­imeout 5 0
  
lin vty 0 15
 
line vty 0 15
 
pass cisco
 
password cisco
 
login
 
login
 
logg sync
 
logging synchr­onous
 
exec-t 5 0
 
exec-t­imeout 5 0
  
int g0/0
 
interface [inter­face]
 
desc Connected to G0/0 on R2
 
descri­ption [text]
 
ip add 10.1.1.1 255.255.255.0
 
ip address [address] [subnet-mask]
 
no shut
 
no shutdown
 
exit
 
exit

[Switch] Basic Config­uration

Short Command
Full-L­ength Command
 
ho S1
 
hostname S1
 
no ip dom lo
 
no ip domain­-lookup
 
ena sec class
 
enable secret class
 
service password-e
 
service password-encryption
  
lin con 0
 
line console 0
 
pass cisco
 
password cisco
 
login
 
login
 
logg sync
 
logging synchr­onous
 
exec-t 5 0
 
exec-t­imeout 5 0
  
lin vty 0 15
 
line vty 0 15
 
pass cisco
 
password cisco
 
login
 
login
 
logg sync
 
logging synchr­onous
 
exec-t 5 0
 
exec-t­imeout 5 0
 
exit
 
exit

[Switch] VLAN Config­uration

Short Command
Full-L­ength Command
 
int vl 10
 
interface vlan [vlan-number]
 
na Students
 
name [vlan-­name]
 
exit
 
exit
  
int f0/5
 
interface [inter­face]
 
sw m a
 
switchport mode access
 
sw a v 10
 
switchport access vlan [vlan-number]
 
exit
 
exit

[Switch] Port Security

Short Command
Full-L­ength Command
 
sw port
 
switchport port-security
 
sw port max 2
 
switchport port-security maximum 2
 
sw port mac st
 
switchport port-security mac-address sticky
 
sw port v shut
 
switchport port-s­ecurity violation [mode]
* Only on access ports, not trunking ports!

[Switch] VLAN Trunking

Short Command
Full-L­ength Command
 
int f0/5
 
interface [inter­face]
 
sw m t
 
switchport mode trunking
 
sw t n v 30
 
switchport trunking native vlan 30
 
sw t a v 10,20,30
 
switchport trunking access vlan 10,20,30
 
sw non
 
switchport nonego­tiate

[Route­r/S­witch] SSH Config­uration

Short Command
Full-L­ength Command
 
usern admin sec cisco
 
username [name] secret [password]
 
ip dom n ccna-labs.com
 
ip domain-name [domain]
 
cry key gen rsa gen mod 1024
 
crypto key generate rsa general-keys modulus 1024
 
ip ssh v 2
 
ip ssh version 2
  
lin vty 0 15
 
line vty 0 15
 
login lo
 
login local
 
trans in ssh
 
transport input ssh

Router­-On­-A-­Stick Config­uration

Short Command
Full-L­ength Command
 
int g0/0.10
 
interface [subin­ter­face]
 
enc dot 10
 
encapsulation dot1Q [vlan-number]
 
desc Gateway for Students VLAN
 
descri­ption [text]
 
ip add 10.1.2.1 255.255.255.0
 
ip address [address] [subnet-mask]
  
int g0/0.20
 
interface [subin­ter­face]
 
enc dot 20
 
encapsulation dot1Q [vlan-number]
 
desc Gateway for Faculty VLAN
 
descri­ption [text]
 
ip add 10.1.3.1 255.255.255.0
 
ip address [address] [subnet-mask]
 
exit
 
exit
  
int g0/0
 
interface [inter­face]
 
no shut
 
no shutdown
 
exit
 
exit

RIP Config­uration

Short Command
Full-L­ength Command
 
ip route 0.0.0.0 0.0.0.0 s0/0/0
 
ip route 0.0.0.0 0.0.0.0 [exit-interface]
 
router rip
 
router rip
 
ver 2
 
version 2
 
no auto
 
no auto-s­ummary
 
net 192.16­8.1.0
 
network [netwo­rk-­add­ress]
 
pa g0/0
 
passiv­e-i­nte­rface [inter­face]
* 
def o
 
defaul­t-i­nfo­rmation originate
* Only on router connected to internet
 
exit
 
exit

DHCP Config­uration

Short Command
Full-L­ength Command
--- DHCP Server ---
 
ip dhcp ex 192.168.1.1 192.168.1.5
 
ip dhcp excluded-address [first-IP] [last-IP]
 
ip dhcp pool R1_Pool
 
ip dhcp pool [pool-­name]
 
netw 192.16­8.1.0 255.25­5.255.0
 
network [network-address] [subnet-mask]
 
def 192.16­8.1.1
 
defaul­t-r­outer [defau­lt-­gat­ewa­y-IP]
 
exit
 
exit
 
--- Relay Router ---
 
int g0/0
 
interface [inter­face]
 
ip dhcp help [serve­r-IP]
 
ip dhcp helper­-ad­dress [serve­r-IP]
 
exit
 
exit

NAT Config­uration

Short Command
Full-L­ength Command
 
acc s 10 p 192.16­8.1.0
 
access-list standard [acl-number] permit [address]
 
ip nat pool CorpNet 209.165.200.10
209.165.200.13 net 255.255.255.0
 
ip nat pool [pool-name] [first-IP] [last-IP] network [subnet-mask]
 
ip nat in s list 10 pool CorpNet ov
 
ip nat inside source list [acl-number] pool [pool-name] overload
 
no auto
 
no auto-s­ummary
 
pass g0/0
 
passiv­e-i­nte­rface g0/0
  
int g0/0
 
interface [inter­face]
 
ip nat in
 
ip nat inside
 
int s0/0/0
 
interface [inter­face]
 
ip nat out
 
ip nat outside
 
exit
 
exit
                       
 

Metadata

  • Languages:
  • Published: 12th April, 2018
  • Last Updated: 29th August, 2018
  • Rated: 4 out of 5 stars based on 2 ratings

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