Ccna3 Todos Los Comandos Resumen

 
Switch de Capa 2
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Crear una vlan
Forma 1:
switch#configure terminal
switch(config)#vlan 2
switch(config-vlan)#name ssur
switch(config-vlan)#exit
switch(config)#exit
switch#
Forma 2:
swirch#vlan database
Warning: It is recommended to configure VLAN from config mode, as VLAN database mode is being deprecated. Please consult userdocumentation for configuring VTP/VLAN in config mode.
switch(vlan)#vlan 2 name ssur
VLAN 2 added:
Name: ssur
swirch(vlan)#exit
Swirch#
ssur es un ejemplo

Eliminar Archivo vlan.dat
Switch#dalete flash:vlan.dat
Switch#show vlan

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Contraseñas (enable – consola – vty y encriptado)
switch#configure terminal
Switch(config)#enablesecret ssur_1
Switch(config)#
Switch(config)#line console 0
Switch(config-line)#password ssur_2
Switch(config-line)#login
Switch(config-line)#exit
Switch(config)#
Switch(config)#line vty 0 15
Switch(config-line)#password ssur_3
Switch(config-line)#login
Switch(config-line)#exit
Switch(config)#service password-encryption
ssur_1 , ssur_2 y ssur_3 son ejemplo
Switch#showrunning-config

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Interface (trunk o access) y asociarlos a vlan
Agregar a vlan 2 y dejarla como acceso
Switch#configure terminal
Switch(config)#interface fastEthernet 0/1
Switch(config-if)#switchport mode access
Switch(config-if)#switchport access vlan 2
Switch(config-if)#exit
Switch(config)#exit
Dejarla Trunk
Switch#configure terminalSwitch(config)#interface fastEthernet 0/1
Switch(config-if)#switchport mode trunk
Switch(config-if)#exit
Switch(config)#exit
Asignar interfaces por rango
Switch(config)#interface range fastEthernet 0/1 - 5
Switch(config-if-range)#
Switch#show running-config
Switch#show interface trunk
Switch#show vlan

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Puerta de enlace pordefecto
switch#configure terminal
Switch(config)#ip default-gateway A.B.C.D
Switch(config)#exit
Switch#
Switch#show running-config

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Vlan de administración
switch#configure terminal
Switch(config)#interface vlan 2
Switch(config-if)#ip address 10.0.0.1 255.0.0.0
Switch(config-if)#no shutdown
Vlan 2, 10.0.0.1 y 255.0.0.0 son ejemploSwitch#show running-config

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Vlan nativa
switch#configure terminal
Switch(config)#interface fastEthernet 0/5
Switch(config-if)#switchport mode trunk
Switch(config-if)#switchport trunk native vlan 2
Vlan 2 y F0/5 son ejemplo
Switch#show interfaces fastEthernet 0/5 switchport

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VTY (virtualtrunking protocol)
Dominio (ej. inacap)
Switch#configure terminal
Switch(config)#vtp domain inacap
Modo client / server / transparent
Switch(config)#vtp mode client
Switch(config)#vtp mode server
Switch(config)#vtp mode transparent
Switch#show vtp status
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Spanning-tree
Bridge ID
Switch#configure terminal
Switch(config)#spanning-treevlan 2 priority 4096
Ejemplo: vlan 2
<0-61440> bridge priority in increments of 4096
Port ID
Switch#configure terminal
Switch(config)#spanning-tree vlan 2 root primary
Switch#show spanning-tree
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Direcciones MAC
Configuracion MAC Statica
Switch#configure terminal
Switch(config)#mac-address-table static 0000.0a00.1232 vlan 2interface fastEthernet 0/1
0000.0a00.1232, vlan 2, F0/1 son ejemplo
Seguridad a los puertos
Switch(config)#interface fastEthernet 0/1
Switch(config-if)#switchport port-security
Switch(config-if)#switchport port-security maximum 1
Switch(config-if)#switchport port-security mac-address sticky
Switch(config-if)#switchport port-security violation shutdown
Switch(config-if)#
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