Mar
20
2009

Virtual Network with SUN VirtualBox

Thesis oh Thesis… :)

For my thesis purpose, I need to have more than 1 PCs, so I decided to install SUN Virtualbox from an rpm package which I got from here.

First, I need to tell you that my laptop runs on top of Fedora 10.

Be sure that you enter as the root user in the command shell. Just type su -

I install the package by typing

yum -y install VirtualBox-2.1.4_42893_fedora9-1.i386.rpm

After the installation, you can access Virtualbox in GUI mode by going to Applications -> System Tools -> SUN xVM Virtualbox

You can start installing guest OS.

I installed OpenSuse 11, Ubuntu 8.10, and Red Hat Enterprise Linux 5.2 on it.

I think that’s all for the preparation :)

Let’s start building the virtual network.

First, create a virtual ethernet card for each guest OS

in your terminal, type:

VBoxTunctl -t theExpectedNameForYourVirtualEthCard -u OwnerName

I wish to have three eth card to be assigned to each guest OS,.So I did the following in my system:

[root@localhost ~]# VBoxTunctl -t vbSuse -u rya
Set ‘vbSuse’ persistent and owned by uid 500

[root@localhost ~]# VBoxTunctl -t vbUbuntu -u rya
Set ‘vbUbuntu’ persistent and owned by uid 500


[root@localhost ~]# VBoxTunctl -t vbRhel -u rya
Set ‘vbRhel’ persistent and owned by uid 500

All of them are not automatically started…So I need to start them by typing:

[root@localhost ~]# ifconfig vbSuse up

[root@localhost ~]# ifconfig vbUbuntu up

[root@localhost ~]# ifconfig vbRhel up

And I need to assign IP for each of them…

[root@localhost ~]# ifconfig vbUbuntu 192.168.3.33

[root@localhost ~]# ifconfig vbSuse 192.168.6.66

[root@localhost ~]# ifconfig vbRhel 192.168.9.99

Then,,,,

The next step is to do the routing…

[root@localhost ~]# route add -net 192.168.3.0/24 gw 192.168.3.33
[root@localhost ~]# route add -net 192.168.6.0/24 gw 192.168.6.66
[root@localhost ~]# route add -net 192.168.9.0/24 gw 192.168.9.99

after all, I configure each guest OS to have IP address and default gateway set.

Ooops….I almost forget to tell you about how to assign those virtual ethernet card to your Guest OS…

  • First, you select a guest OS, then,
  • in the right panel, you will see the network configuration
  • Click on it
  • Another window will show up
  • Thick on the check box “Enable Network Adapter”
  • For the “Attached To” drop down menu, select “Host Interface”. There will be a lists of available Host interface.
  • Choose one of the, and click OK

screenshot-ubuntu-settings

screenshot-untitled-1-openofficeorg-writer1

In my Ubuntu Guest OS. I assign IP and default gateway as follows:

ifconfig eth0 up

ifconfig eth0 192.168.3.22

route add default gateway 192.168.3.33

I did the same things for OpenSuse and RHEL guest OS.

OpenSuse

ifconfig eth0 up

ifconfig eth0 192.168.6.77

route add default gateway 192.168.6.66

RHEL

ifconfig eth0 up

ifconfig eth0 192.168.9.11

route add default gateway 192.168.9.99

After all, from your host, try to ping to all IP address of you guest OSes, from your guest OS to your host, and for one guest OS to another guest OS.

And Everything is done. :)

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