[ale] lxc virtualbox stew

[Boris Borisov]

Virtual box virtual adapters also can be set in bridge/nat/or isolated
network also internal network for box. Easy way to test this is with live
Linux image. Run it in vbox with different adaptor settings and see
results. Nothing better than experience even sometimes you reinvent the
wheel :-)
Actually what I am trying to understand is, in a real physical Linux box,
connected to my router, the ip of 192.168.0.42 is dished out by the router.
If I install LXC in there, according to instructions for LXC, the eth0
network interface is to be bridged to the LXC container and the network ip
to the LXC gets assigned by the router again in the 192.168.0.x range.

I also understand that you can set the LXC to get the IP dished out from
the hardware box's eth0 in a NAT format so they can get the ip in the
192.168.100.x series. (It is convoluted to do it with Arch but it is doable)

==============

Now drawing analogy to that in the VirtualBox world of things,

VirtualBox is the equivalent of the hardware box.  The OS inside that is
the Linux os and the router is also the VirtualBox which dishes out the IP
to the Linux OS.  Now, to install LXC inside the Linux(which is the guest
os) I am confused with the bridge approach and I am struggling there.

I am trying to draw analogies so I can better understand how diff is a
VirtualBox env where Linux runs compared to a hardware box where Linux runs.

Should I treat the VirtualBox as the router that dishes out the IP in the
10.0.2.x range and if LXC is installed with bridge, will the LXC then get
the IP from the VirutalBox in the 10.0.2.x range ?

I know my questions are confusing too but I am confused, hence the
questions are confused.

-N


On Mon, Jan 6, 2014 at 12:09 AM, Michael Strickland <michael at ipxcore.com>wrote:

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> I think he wants multiple IPs assigned to the VM so each container can
> have an IP.  I never figured out how to do that with virtualbox, I
> always found the networking to be too much of a pain.
>
> - --Michael Strickland
>
> On 1/6/2014 12:00 AM, Boris Borisov wrote:
> > Bridge is like pluging two cables in the same switch/network. NAT
> > is the way to deliver internet in your office with 20 computers but
> > you have only one IP from your provider. I'm not proud of my
> > explanation :-)  but all depends of your needs. Tell us more On Jan
> > 5, 2014 11:52 PM, "Narahari 'n' Savitha" <savithari at gmail.com>
> > wrote:
> >
> >> Friends:
> >>
> >> Happy New Year to all.
> >>
> >> Thank you for your help in advance.
> >>
> >> I am running Arch Linux 64 bit under VirtualBox as a guest OS on
> >> a  Mac host.  It works well.
> >>
> >> Allocated 4GB RAM to the guest OS.
> >>
> >> When Virtualbox allocates network, I have setup a NAT config and
> >> the Arch Linux gets 10.0.2.15 ip.
> >>
> >> The host hardware box gets ip in the 192.168.x.x from the
> >> physical router, but the virtualbox software dishes out 10.0.2.15
> >> to guest os inside virtualbox.  I presume the virtualbox software
> >> is doing that.
> >>
> >> Do I have to use bridge mode for installing lxc on the guest OS
> >>
> >> Regards, -N
> >>
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> >
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