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Switches

Access Methods

Console

physical management port, make initial configurations photo

Secure Shell(SSH)

Establish a secure remote CLI, recommended method to connect remotely.

Telnet

Establishes an insecure remote CLI connection to a device over the network.

Principals Commands

  • > for user mode and # for privilege mode
enable,exit                   # switch between users

  • Start Configure photo2

  • Change Name photo3

  • Protect EXEC mode access with cisco as password photo4

  • Secure access to EXEC mode as class password photo5

  • Secure access to the VTY line VTY lines allow remote access via Telnet or SSH. photo6

  • encrypt passwords

configure terminal
service password-encryption
exit

Tip

use the show running-config command to verify the running config, show startup-config for the config saved and copy running-config startup-config for update config

  • banner
configure terminal
banner motd #copy banner here#
  • configure virtual interfaces for remote access to switch photo7

SSH Connect

basic configs
enable
configure terminal
no ip domain-lookup

# create password  to EXEC mode

line console 0
login

line vty 0 15
password cisco
login

# crete banner
banner motd $ authorized Users Only! $

# config intervaface
interface wlan 1
ip address 192.168.1.11 255.255.255.0   # ip address <IP> <NETMASK>
not shutdown

# saved configs
configure the switch for ssh connectivity
ip domain-name ccna-lab.com
crypto key generate rsa modulus 1024
username admin secret cisco

line vty 0 15
transport input telnet ssh
login local
end

Start PuTTY and connect

STP_EtherChannel

Spanning Tree Protocol(STP), es un protocolo de CAPA 2, que nos resuelve la redundancia en las redes con switching, como se muestra en la imagen.

photo8

photo9

Los comando para activarlo son los siguientes

Sw1(config)#interface range f0/1-2
Sw1(config-if-range)#channel-group 1 mode [active,desirate,on,,,]
Sw1(config-if-range)#exit
Sw1(config)#interface port-channel 1
Sw1(config-if)#switchport mode trunk
Sw1(config-if)#exit
Sw1(config)#exit
Sw1#show etherchannel summary