Commonly used commands for Cisco routers
1 Exec commands:
<1-99> Recover a session
bfe manual emergency mode setting
clear reset function
clock manages system clock
configure Enter setting mode
connect Open a terminal
copy copy the settings file from the tftp server or copy the settings file to the tftp server
debug debugging function
disable Exit priority command status
disconnect disconnect
enable Enter priority command status
erase erase flash memory
exit Exit Exce mode
help description of interactive help system
lat Open a local transport connection
lock lock terminal
login Log in with a username
logout exit terminal
mbranch tracks multi-routing broadcast to the lower branch of the tree
mrbranch tracks reverse multi-routing broadcast to the upper branch of the tree
name-connection name an existing network connection
no Turn off debugging function
pad Open X.29 PAD connection
ping Send echo message
ppp starts point-to-point connection protocol
reload shuts down and performs a cold start
resume restores an active network connection
rlogin Open remote registration connection
rsh executes a remote command
send message to another terminal line
setup Run the setup command
show displays running system information
slip starts SLIP protocol
start-chat Execute dialogue description on the command line
systat displays terminal line information
telnet remote login
terminal line parameters
test test subsystem memory and ports
tn3270 Open a tin3270 connection
trace trace route to destination
undebug exit debugging function
verify Verify check the total number of flashing files
where Show active connections
which-route performs OSI routing table search and displays results
write write to write running settings to memory, network, or terminal
x3 Set X.3 parameters on PAD
xremote Enter xremote mode
2 #show ?
access-expression Display access control expressions
access-lists Display access control table
apollo Apollo Network Information
appletalk Apple Talk Information
arap displays Appletalk remote channel statistics
arp address resolution protocol table
async access information on the terminal line of the routing interface
bridge forward network database
buffers buffer pool statistics
clns CLNS network information
clock displays the system clock
cmns connection mode network service information
compress displays compression status
configuration contents of nonvolatile memory
controllers port control status
debugging debugging option status
decnet DEC network information
dialer dialing parameters and statistics
dnsix displays Dnsix/DMPP information
entry queuing terminal entrance
extended extension port information
flash system flash information
flh-log flashing load help log buffer
frame-relay frame relay information
history Display dialogue layer history command
hosts IP domain name, search method, name service, host table
interfaces port status and settings
ip IP information
ipx Novell IPX information
isis IS-IS routing information
keymap terminal keyboard mapping
lat DEC LAT information
line terminal line information
llc2 IBM LLC2 loop information
lnm IBM Bureau Network Management
local-ack local cognitive virtual loop
memory memory statistics
netbios-cache NetBios named buffer memory
node Displays known LAT nodes
ntp network time protocol
processes Activity process statistics
protocols Active network routing protocols
queue Display queue content
queueing Display queue settings
Registry function registration information
rhosts remote host file
rif RIF memory entrance
route-map router information
sdlle displays sdlc-llc2 conversion information
services known LAT services
sessions Remote connection information
smds SMDS information
source-bridge source bridge parameters and statistics
spanning-tree
stacks process stack application
standby Hot Support Protocol Information
stun STUN status and settings
subsystem display subsystem
tcp TCP connection status
terminal display terminal settings
tn3270 TN3270 Settings
translate protocol conversion information
ttycap terminal easy table
users Display terminal line information
version system hardware and software status
vines VINES information
whoami current terminal line information
x25 X.25 Information
xns XNS information
xermote Xremote Statistics
3 #config ?
Memory Settings from Nonvolatile Memory
Network Settings from TFTP Network Host
Overwrite-network Overwrite non-volatile memory from TFTP network host settings
Terminal Settings from Terminal
4 Configure commads:
Access-list Add an access control domain
Apollo Apollo Global Setting Command
appletalk Appletalk global settings command
arap Appletalk remote entry and exit protocol
arp Sets a static ARP entry
async-bootp Modify system startup parameters
autonomous-system locally owned members of special autonomous system
banner defines registration display information
boot modify system startup parameters
bridge transparent bridge
buffers Adjust system buffer pool parameters
busy-message Defines the display of information when the connection to the host fails
chat-s script Defines a modem dialogue text
clns global CLNS setting subcommand
clock sets the time clock
config-register defines the settings register
decnet global DEC network setting subcommand
default-value default character bit value
dialer-list Create a dialer list entry
dnsix-nat provides DMDM services for auditing
enable modify the priority command password
end Exit from Settings mode
exit Exit from setting mode
frame-relay global frame relay setting command
help description of interactive help system
hostname Set the system network name
interface Select the port to set
ip global address setting subcommand
ipx Novell/IPX global setting command
keymap defines a new keyboard map
lat DEC local transmission protocol
line Set terminal line
lnm IBM Bureau Network Management
locaddr-priority-list Create a priority queue on the LU address
logging Modify registration (device) information
login-string defines the registration string specified by the host
map-class sets static table class
map-list Setting static table list
menu Define user interface menu
mop Set up the DEC MOP server
netbios NETBIOS channel control filtering
no Negate a command or change to default settings
ntp Set NTP
priority-list Create a privilege list
prompt Set system prompt
queue-list Create a regular queue list
rcmd remote command setting command
rcp-enable Open Rep service
rif source routing process
router-map Create a routing table or enter the routing table command mode
router Opens a routing process
rsh-enable Open an RSH service
sap-priority-list Create a priority queue on SAP or MAC address
service modify basic network services
snmp-server Modify SNMP parameters
state-machine defines a TCP allocation state machine
stun STUN global setting command
tacacs-server modify TACACS queue parameters
terminal-queue terminal queue command
tftp-server provides TFTP services for network loading requests
tn3270 tn3270 Setting Command
translate Explain the global setting command
username Create a username and its permissions
vines VINES global setting command
x25 X.25 Level 3
x29 X.29 Command
xns XNS Global Setting Command
xremote Settings Xremote
5 (config)#ip
Global IP configuration subcommands:
Accounting-list Select the host to save IP accounting information
Accounting-threshold Sets the maximum number of accounting portals
accounting-transits Set the maximum number of entry through
alias TCP port's IP address alias
as-path BGP autonomous system path filtering
cache-invalidate-delay Invalidation of delayed IP routing storage pool
classless follows classless forward routing rules
default-network flag network as default gateway candidate
default-gateway Specifies the default network (if there is no routing IP)
domain-list Complete domain name of unqualified host
domain-lookup Open IP domain name service system host conversion
domain-name defines the default domain name
forward-protocol controls forward, physical, direct IP broadcasting
host Add an entry to the IP host table
host-routing Open host-based routing (proxy ARP and redirection)
hp-host Open HP proxy detection service
mobile-host mobile host database
multicast-routing Turn on the forward IP
name-server Specifies the address of the name server used
ospf-name-lookup displays OSPF routes as DNS names
pim PIM global command
route Create static routes
routing Open IP routing
security Specify system security information
source-route handles packages based on the selection of source routing headers
subnet-zero allow subnet 0 subnet
tcp global TCP parameters
1 Exec commands:
<1-99> Recover a session
bfe manual emergency mode setting
clear reset function
clock manages system clock
configure Enter setting mode
connect Open a terminal
copy copy the settings file from the tftp server or copy the settings file to the tftp server
debug debugging function
disable Exit priority command status
disconnect disconnect
enable Enter priority command status
erase erase flash memory
exit Exit Exce mode
help description of interactive help system
lat Open a local transport connection
lock lock terminal
login Log in with a username
logout exit terminal
mbranch tracks multi-routing broadcast to the lower branch of the tree
mrbranch tracks reverse multi-routing broadcast to the upper branch of the tree
name-connection name an existing network connection
no Turn off debugging function
pad Open X.29 PAD connection
ping Send echo message
ppp starts point-to-point connection protocol
reload shuts down and performs a cold start
resume restores an active network connection
rlogin Open remote registration connection
rsh executes a remote command
send message to another terminal line
setup Run the setup command
show displays running system information
slip starts SLIP protocol
start-chat Execute dialogue description on the command line
systat displays terminal line information
telnet remote login
terminal line parameters
test test subsystem memory and ports
tn3270 Open a tin3270 connection
trace trace route to destination
undebug exit debugging function
verify Verify check the total number of flashing files
where Show active connections
which-route performs OSI routing table search and displays results
write write to write running settings to memory, network, or terminal
x3 Set X.3 parameters on PAD
xremote Enter xremote mode
2 #show ?
access-expression Display access control expressions
access-lists Display access control table
apollo Apollo Network Information
appletalk Apple Talk Information
arap displays Appletalk remote channel statistics
arp address resolution protocol table
async access information on the terminal line of the routing interface
bridge forward network database
buffers buffer pool statistics
clns CLNS network information
clock displays the system clock
cmns connection mode network service information
compress displays compression status
configuration contents of nonvolatile memory
controllers port control status
debugging debugging option status
decnet DEC network information
dialer dialing parameters and statistics
dnsix displays Dnsix/DMPP information
entry queuing terminal entrance
extended extension port information
flash system flash information
flh-log flashing load help log buffer
frame-relay frame relay information
history Display dialogue layer history command
hosts IP domain name, search method, name service, host table
interfaces port status and settings
ip IP information
ipx Novell IPX information
isis IS-IS routing information
keymap terminal keyboard mapping
lat DEC LAT information
line terminal line information
llc2 IBM LLC2 loop information
lnm IBM Bureau Network Management
local-ack local cognitive virtual loop
memory memory statistics
netbios-cache NetBios named buffer memory
node Displays known LAT nodes
ntp network time protocol
processes Activity process statistics
protocols Active network routing protocols
queue Display queue content
queueing Display queue settings
Registry function registration information
rhosts remote host file
rif RIF memory entrance
route-map router information
sdlle displays sdlc-llc2 conversion information
services known LAT services
sessions Remote connection information
smds SMDS information
source-bridge source bridge parameters and statistics
spanning-tree
stacks process stack application
standby Hot Support Protocol Information
stun STUN status and settings
subsystem display subsystem
tcp TCP connection status
terminal display terminal settings
tn3270 TN3270 Settings
translate protocol conversion information
ttycap terminal easy table
users Display terminal line information
version system hardware and software status
vines VINES information
whoami current terminal line information
x25 X.25 Information
xns XNS information
xermote Xremote Statistics
3 #config ?
Memory Settings from Nonvolatile Memory
Network Settings from TFTP Network Host
Overwrite-network Overwrite non-volatile memory from TFTP network host settings
Terminal Settings from Terminal
4 Configure commads:
Access-list Add an access control domain
Apollo Apollo Global Setting Command
appletalk Appletalk global settings command
arap Appletalk remote entry and exit protocol
arp Sets a static ARP entry
async-bootp Modify system startup parameters
autonomous-system locally owned members of special autonomous system
banner defines registration display information
boot modify system startup parameters
bridge transparent bridge
buffers Adjust system buffer pool parameters
busy-message Defines the display of information when the connection to the host fails
chat-s script Defines a modem dialogue text
clns global CLNS setting subcommand
clock sets the time clock
config-register defines the settings register
decnet global DEC network setting subcommand
default-value default character bit value
dialer-list Create a dialer list entry
dnsix-nat provides DMDM services for auditing
enable modify the priority command password
end Exit from Settings mode
exit Exit from setting mode
frame-relay global frame relay setting command
help description of interactive help system
hostname Set the system network name
interface Select the port to set
ip global address setting subcommand
ipx Novell/IPX global setting command
keymap defines a new keyboard map
lat DEC local transmission protocol
line Set terminal line
lnm IBM Bureau Network Management
locaddr-priority-list Create a priority queue on the LU address
logging Modify registration (device) information
login-string defines the registration string specified by the host
map-class sets static table class
map-list Setting static table list
menu Define user interface menu
mop Set up the DEC MOP server
netbios NETBIOS channel control filtering
no Negate a command or change to default settings
ntp Set NTP
priority-list Create a privilege list
prompt Set system prompt
queue-list Create a regular queue list
rcmd remote command setting command
rcp-enable Open Rep service
rif source routing process
router-map Create a routing table or enter the routing table command mode
router Opens a routing process
rsh-enable Open an RSH service
sap-priority-list Create a priority queue on SAP or MAC address
service modify basic network services
snmp-server Modify SNMP parameters
state-machine defines a TCP allocation state machine
stun STUN global setting command
tacacs-server modify TACACS queue parameters
terminal-queue terminal queue command
tftp-server provides TFTP services for network loading requests
tn3270 tn3270 Setting Command
translate Explain the global setting command
username Create a username and its permissions
vines VINES global setting command
x25 X.25 Level 3
x29 X.29 Command
xns XNS Global Setting Command
xremote Settings Xremote
5 (config)#ip
Global IP configuration subcommands:
Accounting-list Select the host to save IP accounting information
Accounting-threshold Sets the maximum number of accounting portals
accounting-transits Set the maximum number of entry through
alias TCP port's IP address alias
as-path BGP autonomous system path filtering
cache-invalidate-delay Invalidation of delayed IP routing storage pool
classless follows classless forward routing rules
default-network flag network as default gateway candidate
default-gateway Specifies the default network (if there is no routing IP)
domain-list Complete domain name of unqualified host
domain-lookup Open IP domain name service system host conversion
domain-name defines the default domain name
forward-protocol controls forward, physical, direct IP broadcasting
host Add an entry to the IP host table
host-routing Open host-based routing (proxy ARP and redirection)
hp-host Open HP proxy detection service
mobile-host mobile host database
multicast-routing Turn on the forward IP
name-server Specifies the address of the name server used
ospf-name-lookup displays OSPF routes as DNS names
pim PIM global command
route Create static routes
routing Open IP routing
security Specify system security information
source-route handles packages based on the selection of source routing headers
subnet-zero allow subnet 0 subnet
tcp global TCP parameters