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viernes, 14 de mayo de 2010

Configurar Mas Tarjetas de Red en VirtualBox

Introducción
En VirtualBox podemos gestionar cuatro (4) tarjetas de Red utilizando el interface gráfico, sin embargo, disponemos de un total de ocho (8) tarjetas de Red -emuladas- disponibles.

Para ello, deberemos utilizar los comandos de <VBoxManage> para poder añadir, eliminar, modificar parámetros desde la  línea de comandos.


Gestionar la Configuración utilizando VBoxManage
Para poder ver la configuración actual de la máquina virtual utilizaremos la opción <showvminfo _vm_name_>, por ejemplo, suponiendo que nuestra máquina virtual se llame SafeChildren Appliance, haremos:

$ ./VBoxManage showvminfo "SafeChildren Appliance"
Sun VirtualBox Command Line Management Interface Version 3.1.6
(C) 2005-2010 Sun Microsystems, Inc.
All rights reserved.

Name:            SafeChildren Appliance
Guest OS:        OpenSolaris (64 bit)
UUID:            fc59e47f-e83a-49ee-908e-7dcf1e54d4a2
Config file:     /Users/itily/Library/VirtualBox/Machines/SafeChildren Appliance/SafeChildren Appliance.xml
Hardware UUID:   fc59e47f-e83a-49ee-908e-7dcf1e54d4a2
Memory size:     2048MB
VRAM size:       6MB
Number of CPUs:  2
Synthetic Cpu:   off
CPUID overrides: None
Boot menu mode:  message and menu
Boot Device (1): DVD
Boot Device (2): HardDisk
Boot Device (3): Not Assigned
Boot Device (4): Not Assigned
ACPI:            on
IOAPIC:          on
PAE:             on
Time offset:     0 ms
Hardw. virt.ext: on
Hardw. virt.ext exclusive: off
Nested Paging:   on
VT-x VPID:       on
State:           powered off (since 2010-04-30T12:21:39.000000000)
Monitor count:   1
3D Acceleration: off
2D Video Acceleration: off
Teleporter Enabled: off
Teleporter Port: 0
Teleporter Address:
Teleporter Password:
Storage Controller Name (0):            Controlador IDE
Storage Controller Type (0):            PIIX4
Storage Controller Instance Number (0): 0
Storage Controller Max Port Count (0):  2
Storage Controller Port Count (0):      2
Storage Controller Name (1):            Controlador de disquete
Storage Controller Type (1):            I82078
Storage Controller Instance Number (1): 0
Storage Controller Max Port Count (1):  1
Storage Controller Port Count (1):      1
Controlador IDE (0, 0): /Users/itily/Library/VirtualBox/HardDisks/SafeChildren Appliance.vdi (UUID: 007e4925-cf11-426b-9b78-385878feb2f1)
Controlador IDE (1, 0): Empty
Controlador de disquete (0, 0): Empty
NIC 1:           MAC: 080027831CA3, Attachment: Bridged Interface 'en0: Ethernet', Cable connected: on, Trace: off (file: none), Type: 82540EM, Reported speed: 0 Mbps
NIC 2:           MAC: 080027B5E8FD, Attachment: Bridged Interface 'en0: Ethernet', Cable connected: on, Trace: off (file: none), Type: 82540EM, Reported speed: 0 Mbps
NIC 3:           MAC: 080027CB82E5, Attachment: Bridged Interface 'en0: Ethernet', Cable connected: on, Trace: off (file: none), Type: 82540EM, Reported speed: 0 Mbps
NIC 4:           MAC: 080027E447C8, Attachment: Bridged Interface 'en0: Ethernet', Cable connected: on, Trace: off (file: none), Type: 82540EM, Reported speed: 0 Mbps
NIC 5:           MAC: 0800277292EE, Attachment: Bridged Interface 'en0: Ethernet', Cable connected: on, Trace: off (file: none), Type: 82540EM, Reported speed: 0 Mbps
NIC 6:           MAC: 080027B8D241, Attachment: Bridged Interface 'en0: Ethernet', Cable connected: on, Trace: off (file: none), Type: 82540EM, Reported speed: 0 Mbps
NIC 7:           disabled
NIC 8:           disabled

UART 1:          disabled
UART 2:          disabled
Audio:           disabled
Clipboard Mode:  Bidirectional
VRDP:            disabled
USB:             disabled
USB Device Filters:
Shared folders: 
Guest:
Statistics update:                   disabled


Como vemos, tiene soporte hasta NIC 8 -como ya hemos comentado- pero no podremos gestionarlas desde el interface gráfico. Ahora si queremos añadir una nueva tarjeta virtual haciendo bridge sobre la tarjeta física en0 haremos lo siguiente:

$ ./VBoxManage modifyvm "SafeChildren Appliance" --nic7 bridged --cableconnected7 on --nictype7 82540EM --macaddress7 auto  --bridgeadapter7 'en0: Ethernet'
Sun VirtualBox Command Line Management Interface Version 3.1.6
(C) 2005-2010 Sun Microsystems, Inc.
All rights reserved.

Si ahora volvemos a mostrar la configuración de la máquina veremos cómo ya tenemos activada la nueva tarjeta NIC 7 -he dejado sólo la parte de las NICs-

$ ./VBoxManage showvminfo "SafeChildren Appliance" 
Sun VirtualBox Command Line Management Interface Version 3.1.6
(C) 2005-2010 Sun Microsystems, Inc.
All rights reserved.


NIC 1:           MAC: 080027831CA3, Attachment: Bridged Interface 'en0: Ethernet', Cable connected: on, Trace: off (file: none), Type: 82540EM, Reported speed: 0 Mbps
NIC 2:           MAC: 080027B5E8FD, Attachment: Bridged Interface 'en0: Ethernet', Cable connected: on, Trace: off (file: none), Type: 82540EM, Reported speed: 0 Mbps
NIC 3:           MAC: 080027CB82E5, Attachment: Bridged Interface 'en0: Ethernet', Cable connected: on, Trace: off (file: none), Type: 82540EM, Reported speed: 0 Mbps
NIC 4:           MAC: 080027E447C8, Attachment: Bridged Interface 'en0: Ethernet', Cable connected: on, Trace: off (file: none), Type: 82540EM, Reported speed: 0 Mbps
NIC 5:           MAC: 0800277292EE, Attachment: Bridged Interface 'en0: Ethernet', Cable connected: on, Trace: off (file: none), Type: 82540EM, Reported speed: 0 Mbps
NIC 6:           MAC: 080027B8D241, Attachment: Bridged Interface 'en0: Ethernet', Cable connected: on, Trace: off (file: none), Type: 82540EM, Reported speed: 0 Mbps
NIC 7:           MAC: 080027EC1471, Attachment: Bridged Interface 'en0: Ethernet', Cable connected: on, Trace: off (file: none), Type: 82540EM, Reported speed: 0 Mbps
NIC 8:           disabled


Por último, si queremos deshabilitar una tarjeta, deberemos indicar el tipo <none>, por ejemplo:

$ ./VBoxManage modifyvm "SafeChildren Appliance" --nic7 none
Sun VirtualBox Command Line Management Interface Version 3.1.6
(C) 2005-2010 Sun Microsystems, Inc.
All rights reserved.

$ ./VBoxManage showvminfo "SafeChildren Appliance"
Sun VirtualBox Command Line Management Interface Version 3.1.6
(C) 2005-2010 Sun Microsystems, Inc.
All rights reserved.

NIC 1:           MAC: 080027831CA3, Attachment: Bridged Interface 'en0: Ethernet', Cable connected: on, Trace: off (file: none), Type: 82540EM, Reported speed: 0 Mbps
NIC 2:           MAC: 080027B5E8FD, Attachment: Bridged Interface 'en0: Ethernet', Cable connected: on, Trace: off (file: none), Type: 82540EM, Reported speed: 0 Mbps
NIC 3:           MAC: 080027CB82E5, Attachment: Bridged Interface 'en0: Ethernet', Cable connected: on, Trace: off (file: none), Type: 82540EM, Reported speed: 0 Mbps
NIC 4:           MAC: 080027E447C8, Attachment: Bridged Interface 'en0: Ethernet', Cable connected: on, Trace: off (file: none), Type: 82540EM, Reported speed: 0 Mbps
NIC 5:           MAC: 0800277292EE, Attachment: Bridged Interface 'en0: Ethernet', Cable connected: on, Trace: off (file: none), Type: 82540EM, Reported speed: 0 Mbps
NIC 6:           MAC: 080027B8D241, Attachment: Bridged Interface 'en0: Ethernet', Cable connected: on, Trace: off (file: none), Type: 82540EM, Reported speed: 0 Mbps
NIC 7:           disabled
NIC 8:           disabled


Conclusiones
La potencia del CLI de <VirtualBox> nos permite no sólo cambiar configuraciones, sino gestionar por completo la máquina virtual. Esto,  es de gran ayuda cuando no contamos con acceso al X11.

Referencias

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