Basic configuration and operation commands of cisco switches

Here are some basic configuration and operation commands of cisco switches

·        switchport port-security mac-address: This command statically adds MAC address as allowed address on the port.

·        switchport port-security mac-address sticky: This command tells switch to learn MAC addresses on the interface and add as secure MACs.

·        switchport port-security violation {protect/restrict/shutdown}: This command tells switch what to do if an appropriate MAC tries to access through secure switch port.

·        switchport port-security maximum [value]: This command allowed max of secure MAC on the interface.

·        interface vlan 1: This is a global command used to configure the interface for VLAN.

·        ip default- gateway [address]: This is a global command and set default gateway.

·        ip address [address][subnet mask]: This command is used to configure the interface and set the ip address

·        interface fast Ethernet 0/x: This command put user into user configuration mode.

·        speed {10/100/1000/auto/nonegotiate}: This command set the speed of the interface.

·        duplex {auto/full/half}: This command sets duplex mode for interface.

·        hostname [name]: This command assigns hostname to the switch.

·        line vty 0 15: This command enters vty configuration mode.

·        line con 0: This command enters console configuration mode.

·        login: This command tells switch to ask for password.

·        password[password]: This command sets the password.

·        enable password [password]: This command sets password to enter privileged mode.

·        enable secret [password]: This command sets encrypted password.

·        configure terminal: This command enters configuration mode.

·        show interfaces fastethernet 0/x: This command displays interface status.

·        show interfaces: This command displays information about specific interface.

·        show interfaces vlan 1: This command displays the ip address configuration.

·        show [running/startup]-config: This command displays RAM/NVRAM settings.

·        show-mac-address-table: This command displays the MAC address table.

·        show port-security: [interface] [address]: This command shows security options on the interface.

·        show version: This command displays the hardware and software status of the switch.

·        show flash: This command displays the files and directories reside in the flash.

·        show history: This command displays the last ten commands.

·        erase startup-config: This command erases startup configuration.