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I have a question about configuring my '/etc/network/interfaces' The setup would be just like this with one caveat.

The “smoothwall machine” would be in a VirtualBox of smooth wall running on a Ubuntu 10.04 LTS 64bit machine with 3 NICS.

Here is my current configuration file for set for DHCP and labels:

## Main intel board
auto eth1
iface eth1 inet dhcp

##Gigabit upper
auto eth0
iface eth0 inet dhcp

##Gigabit lower 
auto eth2
iface eth2 inet dhcp

iface lo inet loopback

I really want to try two different scenarios (for learning and in the end experimentation)

Scenario 1. - Virtual Box:

Eth0: will accept wan traffic from my modem,

Eth1: will serve smooth services (most likey with dhcp) to a swtich

Eth2: will be my “fallback” NIC that I will leave alone so I have an easy way to get back online with out too much editing of files.

Scenario 2. is the as Scenario 1 except

Eth0 Via Virtual Box Eth0: will accept traffic from my current router – via dhcp

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2  
So the question is ? –  drcelus Jan 26 '12 at 8:27
    
Running a firewall on VirtualBox has disaster written all over it. I'm not exactly sure what you're trying to accomplish but this probably isn't the best way to do it. –  kce Jan 27 '12 at 1:09

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