| |
Command |
Command Description |
Command Syntax |
|
6.1.6 |
show interface status |
Use the show interface privileged EXEC command to display the
administrative and operational status of a switching (nonrouting)
port. |
show interface [interface-id
| vlan number] [flow-control | pruning | status | switchport [allowed-vlan
| prune-elig | native-vlan]] |
| |
show controllers ethernet-controller |
Use the show controllers ethernet EXEC command to display information
on the Cisco 2500, Cisco 2600, Cisco 3000, or Cisco 4000 series. |
show controllers ethernet slot/port |
| |
show post |
Tells if the switch passed the Power-On Self Test |
show post |
|
6.2.1 |
no ip address |
To set IP addresses for an interface, use the ip address interface
configuration command. The secondary keyword designates an IP address
as an auxiliary address. To remove the specified addresses, use the no
form of this command. |
no ip address |
| |
show running-config |
This command allows you to view the current configuration in the RAM.
This configuration is the active configuration, and changes made to
the router will show up in this configuration file. Since it is stored
in the RAM, any changes not saved will be gone when the router resets. |
show running-config |
| |
show startup-config |
This command allows you to view the configuration file "startup-config"
in the NVRAM. This configuration file is the stored, default file that
is used by the router when it boots. Any changes made to the active
configuration on the router that is not saved to this file using "copy
running-config startup-config" will be lost upon next reload. |
show startup-config |
| |
show ip interface VLAN 1 |
To display the usability status of interfaces configured for IP, use
the show ip interface EXEC command. |
show ip interface interface-type
number |
| |
show version |
To display the configuration of the system hardware, the software
version, the names and sources of configuration files and the boot
images, use the show version EXEC command. |
show version |
| |
show interface fastethernet |
Use the show interface privileged EXEC command to display the
administrative and operational status of a switching (nonrouting)
port. |
show interface [interface-id | vlan number] [flow-control |
pruning | status | switchport [allowed-vlan | prune-elig | native-vlan]] |
| |
show vlan |
Use the show vlan command to display VLAN information. Each Ethernet
switch port and Ethernet repeater group belong to only one VLAN.
Trunk, FDDI/CDDI, and ATM ports can exist on multiple VLANs. |
show vlan type |
| |
dir flash: |
To display a list of files on a file system, use the dir EXEC command. |
dir [/all] [filesystem: | file-url] |
| |
show flash |
To display the layout and contents of a Flash memory file system, use
the show EXEC command. |
show flash-filesystem: |
| |
copy running-config startup-config |
Use the copy command set to upload or download a Flash image or a
switch configuration to or from a Flash device, rcp server, or TFTP
server. |
copy file-id {config | flash | rcp | tftp} |
| |
exit |
Use the exit command at the EXEC levels to exit the EXEC mode. Use the
exit command at the configuration level to return to privileged EXEC
mode. |
exit |
| |
delete flash:vlan.dat |
To delete a file on a Flash memory device, use the delete EXEC
command. |
delete flash-url |
| |
delete vtp |
This command resets the switch with VTP parameters set to factory
defaults. All other parameters will be unchanged. |
delete vtp |
|
6.2.2 |
configure terminal |
This command is used to switch from enable mode to one of the
configuration modes. |
configure {terminal | memory | network | overwrite-network} |
| |
hostname |
This command is used to name the switch. |
hostname |
| |
line con 0 |
To identify a specific line for configuration and begin the line
configuration command collection mode, use the line global
configuration command. |
line [aux | console | tty | vty ] line-number [ending-line-number] |
| |
password |
To specify a password on a line, use the password line configuration
command. Use the no form of this command to remove the password. |
password password |
| |
login |
To enable password checking at login, use the login line configuration
command. Use the no form of this command to disable password checking
and allow connections without a password. |
login [local | tacacs] |
| |
line vty 0 4 |
To identify a specific line for configuration and begin the line
configuration command collection mode, use the line global
configuration command. |
line [aux | console | tty | vty ] line-number [ending-line-number] |
| |
enable secret |
To specify an additional layer of security over the enable password
command, use the enable secret global configuration command. Use the
no form of this command to turn off the enable secret function. |
enable secret [level level] {password | [encryption-type]
encrypted-password} |
| |
enable password |
To set a local password to control access to various privilege levels,
use the enable password global configuration command. Use the no form
of this command to remove the password requirement. |
enable password [level level] {password | [encryption-type]
encrypted-password} |
| |
interface VLAN1 |
Use the interface global configuration command to configure an
interface type and enter interface configuration mode. |
interface type number |
| |
ip address |
To set IP addresses for an interface, use the ip address interface
configuration command. The secondary keyword designates an IP address
as an auxiliary address. To remove the specified addresses, use the no
form of this command. |
ip address ip-address mask [secondary] |
| |
ip default-gateway |
To define a default gateway (router) when IP routing is disabled, use
the ip default-gateway global configuration command. To disable this
function, use the no form of this command. |
ip default-gateway ip address |
| |
show interface VLAN |
Use the show interface privileged EXEC command to display the
administrative and operational status of a switching (nonrouting)
port. |
show interface [interface-id | vlan number] [flow-control |
pruning | status | switchport [allowed-vlan | prune-elig | native-vlan]] |
| |
speed 100 |
To configure the speed for a Fast Ethernet interface, use the speed
interface configuration command. Use the no form of this command to
disable a speed setting. |
speed {10 | 100 | auto} |
| |
duplex full |
To configure the duplex operation on an interface, use the duplex
interface configuration command. Use the no form of this command to
return the system to half-duplex mode, which is the system default. |
duplex {full | half | auto} |
|
6.2.3 |
show mac-address–table |
Used to examine the addresses that a switch has learned. |
show mac-address–table |
| |
clear mac-address-table |
Rather than wait for a dynamic entry to age-out, the administrator has
the option to use this privileged exec command. |
clear mac-address-table |
|
6.2.4 |
mac-address-table static <mac-address
of host> interface FastEthernet<Ethernet numer> vlan, |
To set a static MAC address entry for a switch use this command. |
mac-address-table static <mac-address
of host> interface FastEthernet<Ethernet numer> vlan, |
| |
no mac-address-table static <mac-address
of host>interface FastEthernet <Ethernet number> vlan <vlan name> |
To remove this entry use the no form of the command. |
no mac-address-table static <mac-address
of host>interface FastEthernet <Ethernet number> vlan <vlan name> |
|
6.2.5 |
port security |
Use the port security interface configuration command to enable port
security on a port and restrict the use of the port to a user-defined
group of stations. Use the no form of this command to return the port
to its default value. |
port security [action
{shutdown | trap} | max-mac-count addresses] |
| |
no port security |
Use the port security interface configuration command to enable port
security on a port and restrict the use of the port to a user-defined
group of stations. Use the no form of this command to return the port
to its default value. |
port security [action
{shutdown | trap} | max-mac-count addresses] |
| |
port security action |
Use the port security interface configuration command to enable port
security on a port and restrict the use of the port to a user-defined
group of stations. Use the no form of this command to return the port
to its default value. |
port security [action
{shutdown | trap} | max-mac-count addresses] |
| |
show port security |
To verify port security status use this command.. |
show port security |
| |
port secure |
To verify port security status use this command on the Cisco 1900. |
port secure |
| |
show mac-address-table security |
Use the show (mac-address-table security) privileged Exec command to
display the addressing security configuration. |
show mac-address-table security
|
| |
port security max-mac-count 1 |
Use the port security interface configuration command to enable port
security on a port and restrict the use of the port to a user-defined
group of stations. Use the no form of this command to return the port
to its default value. |
port security [action
{shutdown | trap} | max-mac-count addresses] |
| |
port secure max-mac-count 1 |
Maximum number of addresses allowed on the port on a 1900. |
port secure max-mac-count |
| |
switchport port-security maximum |
Maximum number of addresses allowed on the port on a 1900. |
switchport port-security maximum |
| |
port security action shutdown |
In the event of a security violation the interface should be shut
down. |
port security action shutdown |
|
6.2.6 |
switchport port-security mac-address
sticky |
The switchport accepts only one device. |
switchport port-security mac-address
sticky |
| |
clear mac-address-table dynamic |
This will unlock the MAC addresses from security and allow a new
address to be registered. |
clear mac-address-table dynamic |
|
6.2.7 |
show flash |
To display the layout and contents of a Flash memory file system, use
the show EXEC command. |
show flash-filesystem:y |
| |
copy flash tftp |
To copy any file from a source to a destination, use the copy EXEC
command. Use the /erase option to erase the destination file system
before copying. |
copy {flash | ftp | nvram |
running-config | startup-config | system | tftp} {flash | ftp | nvram |
running-config | startup-config | system | tftp} |
| |
copy startup-config tftp |
To copy any file from a source to a destination, use the copy EXEC
command. Use the /erase option to erase the destination file system
before copying. |
copy {flash | ftp | nvram |
running-config | startup-config | system | tftp} {flash | ftp | nvram |
running-config | startup-config | system | tftp} |
| |
copy start tftp |
To copy any file from a source to a destination, use the copy EXEC
command. Use the /erase option to erase the destination file system
before copying. |
copy {flash | ftp | nvram |
running-config | startup-config | system | tftp} {flash | ftp | nvram |
running-config | startup-config | system | tftp} |
|
6.2.8 |
flash_init |
One of three commands that are used to initialize the flash filesystem,
and finish loading the operating system software in the 2950 switch. |
flash_init |
| |
load_helper |
One of three commands that are used to initialize the flash filesystem,
and finish loading the operating system software in the 2950 switch. |
load_helper |
| |
dir flash: |
To display a list of files on a file system, use the dir EXEC command. |
dir [/all] [filesystem: |
file-url] |
| |
rename flash:config.text
flash:config.old |
Renames the configuration file saved in the flash. |
rename flash:config.text
flash:config.old |
| |
boot |
Boots the system. |
boot |
|
6.2.9 |
no ip http server |
To enable a Cisco router to be configured from a browser using the
Cisco IOS ClickStart software, and to enable any router to be
monitored or have its configuration modified from a browser using the
Cisco Web browser interface, use the ip http server global
configuration command. To disable this feature, use the no form of
this command. |
no ip http server |
| |
delete flash:archive tar /x tftp://192.168.1.3/
c2950-c3h2s-mz.
120-5.3.WC.1.tar
flash: |
To delete a file on a Flash memory device, use the delete EXEC
command. |
delete flash-url |
| |
boot system flash: |
To specify the system image that the router loads at startup, use one
of the following boot system global configuration commands. Use a no
form of this command to remove the startup system image specification. |
boot system flash [flash-fs:] [partition-number:] [filename] |
