Cisco IOS Commands – CCNA Level
A good working knowledge of Cisco IOS commands is vital for your success in your Cisco exam. You will be tested on them during the switch and router simulations and also in the multiple choice questions.
Here are what we think are the most important ones you need to know along with how to apply them to live Cisco equipment. If you think we have missed any out please drop us a line to help at howtonetwork.net
Unprivileged Commands
enable | lock | ping |
telnet | traceroute | resume |
disconnect | ssh | exit |
Privileged Commands
Configure Commands
Interface Commands
Line console Commands
logging synchronous | login | history size |
exec-timeout | length | lockable |
password | privilege |
Line VTY Commands
logging synchronous | login | history size |
exec-timeout | length | lockable |
password | privilege | access-class |
Show Commands
Router RIP Commands
version 2 | no auto-summary | network |
passive-interface | validate-update-source | passive-interface default |
maximum-paths | distribute-list | offset-list |
distance | timers | neighbor |
Router EIGRP Commands
no auto-summary | network | distance |
distribute-list | eigrp router-id | passive-interface |
passive-interface default | variance (EIGRP) | offset-list |
distance eigrp | maximum-paths | neighbor |
Router OSPF Commands
network | ||
passive-interface | router-id | passive-interface default |
maximum-paths | distribute-list | auto-cost reference-bandwidth |
distance | distance ospf | neighbor |
Debug Commands
debug ip packet | debug ip packet detail | debug ip routing |
debug ip eigrp | debug ip ospf adj | debug ip ospf events |
debug ip ospf packet | debug ip rip |
Clear Commands
clear ip route * | clear ip ospf process | clear ip eigrp neighbors |
Switch Commands
Privilege Commands
vlan database | configure |
Vlan Database Commands
vlan | exit | show |
vtp domain | vtp pruning | vtp server |
vtp client | vtp transparent | vtp password |
apply |
Configure Commands
Interface Commands
Show Commands
show vlan | show vlan brief | show interface trunk |
show spanning-tree | show spanning-tree vlan | show vtp status |
show port-sec | show mac-address-table | show interface |
Special Keys Commands