| Cisco IOS Command Line Cheatsheet |
| --------------------------------- |
| --- Verify Basic Configuration: |
| Shows information close the switch in addition to its interfaces, RAM, NVRAM, flash, IOS, etc. |
| SW1# demo version |
| Shows the electrical flow configuration file stored inwards DRAM. |
| SW1# demo running-config |
| Shows the configuration file stored inwards NVRAM which is used at get-go kick process. |
| SW1# demo startup-config |
| Lists the commands currently held inwards the history buffer. |
| SW1# demo history |
| Shows an overview of all interfaces, their physical status, protocol condition in addition to ip address if assigned. |
| SW1# demo ip interface brief |
| Shows detailed information close the specified interface, its status, protocol, duplex, speed, encapsulation, concluding five 2d traffic. |
| SW1# demo interface vlan 1 |
| Shows the description of all interfaces |
| SW1# demo interfaces description |
| Shows the condition of all interfaces similar connected or not, speed, duplex, body or access vlan. |
| SW1# demo interfaces status |
| Shows Blue Planet encryption fundamental used for SSH. |
| SW1# demo crypto fundamental mypubkey rsa |
| Shows information close the leased IP address (when an interface is configured to become IP address via a dhcp server) |
| SW1# demo dhcp lease |
| --- Router Modes: |
| Router>: User trend = Limited to basic monitoring commands |
| Router#: Privileged trend (exec-level mode) = Provides access to all other router commands |
| Router(config)#: global configuration trend = Commands that deport upon the entire system |
| Router(config-if)#: interface trend = Commands that deport upon interfaces |
| Router(config-subif)#: subinterface trend = Commands that deport upon subinterfaces |
| Router(config-line)#: trouble trend = Commands that deport upon inwards lines modes (console, vty, aux…) |
| Router(config-router)#: router configuration mode |
| --- Changing switch hostname: |
| Switch(config)# hostname SW1 |
| --- Configuring passwords: |
| SW1(config)# enable hush-hush cisco ! MD5 hash |
| SW1(config)# enable password notcisco ! Clear text |
| --- Securing console port: |
| SW1(config)# trouble con 0 |
| SW1(config-line)# password cisco |
| SW1(config-line)# login |
| --- Securing end lines: |
| SW1(config)# trouble vty 0 4 |
| SW1(config-line)# password cisco |
| SW1(config-line)# login |
| --- Encrypting passwords: |
| SW1(config)# service password-encryption |
| --- Configuring banners: |
| SW1(config)# banner motd $ |
| -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- |
| UNAUTHORIZED ACCESS IS PROHIBITED |
| -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- |
| $ |
| --- Giving the switch an IP address: |
| SW1(config)# interface vlan 1 |
| SW1(config-if)# ip address 172.16.1.11 255.255.255.0 ! or DHCP |
| SW1(config-if)# no shutdown |
| --- Setting the default gateway: |
| SW1(config)# ip default-gateway 172.16.1.1 |
| --- Saving configuration: |
| SW1# re-create running-config startup-config |
| Destination filename [startup-config]? ! Press come inwards to confirm file name. |
| Building configuration… |
| [OK] |
| ! Short for write memory. |
| SW1# wr |
| Building configuration… |
