CCNA ITN: Module 10

hostname command

sets the device name on a Cisco router

enable secret password

secures privileged EXEC mode

line console 0

secures user EXEC access via console

line vty 0 4

secures remote Telnet/SSH access

transport input ssh | telnet

specifies remote access protocols allowed

service password-encryption

encrypts all plaintext passwords in config

banner motd

displays legal notification at login

copy running-config startup-config

saves the current configuration

copy run start

alternate command to save running config

write mem

legacy command to save config to NVRAM

interface type-and-number

enters interface configuration mode

description command

adds a description to an interface

ip address ipv4 subnet

masks IPv4 address on an interface

ipv6 address/prefix

assigns IPv6 address to an interface

no shutdown

activates interface (turns it on)

show ip interface brief

displays IPv4 interface status summary

show ipv6 interface brief

displays IPv6 interface status summary

show ip route

displays IPv4 routing table

show ipv6 route

displays IPv6 routing table

show interfaces

displays detailed interface stats

default gateway

router that routes packets out of local network

ip default-gateway command

sets gateway for Layer 2 switch

switch virtual interface (SVI)

required for remote switch management

switch IPv6 config

received automatically from ICMPv6 RA message