Cisco Commands: Difference between revisions

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Change the machine's hostname (does not require a reboot)
Change the machine's hostname (does not require a reboot)
  hostname
  hostname
Configure the console port (0)
line con 0


Configure the interface "vlan 1"
Configure the interface "vlan 1"

Revision as of 22:56, 2 September 2025


These are commands for cisco IOS devices (switches, routers, etc)


List files in current directory

dir

List files in nvram

dir nvram:

Copy command destinatons (we use running-config as an example source file)

copy running-config cisco copy destinations

Elevate to root user

enable

Enter global configuration mode

configure terminal

Show startup config (the one stored in nvram for next boot)

show startup-config

Show running config (the one stored in ram and is currently in use)

show running-config

Copy the in-use config to the startup config so that it will be used on the next boot

copy running-config startup-config

Apply weak encryption to all unencrypted passwords. This only changes what is displayed in the config file, any password typed through a network cable is still transmitted in plain text.

service password-encryption

Global configuration commands


Change the machine's hostname (does not require a reboot)

hostname

Configure the console port (0)

line con 0

Configure the interface "vlan 1"

interface vlan 1

Interface configuration commands


ip address 192.168.0.1 255.255.255.0

Change interface state to "up"

no shutdown