This document provides an overview of Cisco router modes, commands, and configuration options. It lists the different router modes including user exec mode, privileged exec mode, global configuration mode, interface configuration mode, and router configuration mode. It also lists many common Cisco router commands used for configuration, troubleshooting, and management. These commands allow configuration and management of interfaces, routing protocols, access control lists, NAT, DHCP, and other router functions. The document provides brief descriptions and examples of using some key commands.

1. cisco-router-commands.vsd
1-24-20
egean@calstatela.edu
Cisco Router Modes and
Commands
Router>
Router#
Router(config-if)#
Router(config-line)#
Router(config)#
enable
config terminal
interface [ vlan | Eth | serial | loopback ] line [console | vty | aux]
setup
show
debug
copy [src] [dst]
reload
erase start
ping
traceroute
telnet
clear counters
connect
clock
vlan
flash
running-config
startup-config
controllers ser0
interfaces
protocols
ip
log
arp
access-list
process cpu
cdp
license
mac-address-table
version
ip address [addr][mask][secondary]
no shutdown
description
clock rate
bandwidth
ip access-group xxx [in | out]
no ip directed-broadcast
media-type
ip summary address
ip helper-address
ip ospf
channel-group
standby
crypto
ip nat
User Exec
mode
Privileged Exec
mode
Global Config
mode
hostname
enable password level 7 xxxx
enable secret xxxx
username
ip
ipv6
logging buffered
access-list xxx
boot system
banner
[no] service password-encryption
ntp
aaa
crypto
password xxxx
login
logging synchronous
no login (allow telnet w/o passwd)
access-class [acl-list# ] in
transport
default-gateway
route 0.0.0.0
routing
classless
name-server
domain-name
ssh
dhcp
nat
Router(config-subif)#
interface Eth 0.x
ip address
encapsulation dot1q [vlanid]
Router(config-router)#
router [ rip | ospf | eigrp | bgp ]
network x.x.x.x
passive-interface default
[no] passive-interface serial 0/0
redistribute
no auto summary
version
arp
interface brief
protocols
route
nat
dhcp
Line Editiog:
Ctl-R redisplay line
Ctl-A move to beginning of line
Ctl-E move to end of line
Ctl-B move back one char
Ctl-F move forward one char
Ctl-D delete one char
Tab finish typing a command
Router Command History:
Ctl-P show last command
Ctl-N show previous commands
show history
show terminal
exit
exit
exit
Switch(config-vlan)#
vlan
name