RX packets:426 errors:32 dropped:32 overruns:0 frame:0 TX packets:82 errors:0 dropped:0 overruns:0 carrier:0 RX packets:106 errors:0 dropped:0 overruns:0 frame:0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 $ sudo iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADEįollowing is how various interfaces look like after finishing this setup.īridge name bridge id STP enabled interfacesīr0 Link encap:Ethernet HWaddr 6E:EA:39:83:8C:D4 # echo "1" > /proc/sys/net/ipv4/ip_forward Now add the tap1 interface to the bridge and bring it up.Įnable IP forwarding on the host machine and setup MASQUERADING: This br0 interface will work as the gateway for the virtual machines. Next configure the br0 interface with an ip address. Next I started the VDE Switch connected to the tap0 interface and make the control file world writeable:Īll interfaces which are connected to network segments to be bridged are to be put into promiscuous mode.Īdd the tap0 interface to the bridge and start the DNSMASQ server to listen on br0 interface. Then I created couple of persistent tap interfaces owned by an ordinary user: Next I wanted to make the “tun” device writeable by the users, so I out myself into the “vboxusers” group and gave the group write permission on the device. I need to load the tun/tap module and the kqemu module for QEMU
#QEMU VS VIRTUALBOX INSTALL#
$ sudo apt-get install uml-utilities bridge-utils
All virtual machines can connect to internet via the hostmachine.Īs suggested on the VirtualBox website, in order to use bridging I need the uml-utilities and bridge-utilities packages:.Host can talk to all virtual machines and vice-versa.QEMU virtual machines can talk to VirtualBox virtual machines and vice-versa.Searching on google for quite sometime did not help either, so I decided to give it a try.įollowing is what I did to accompalish this.
I wanted the virtual machines to be in an isolated network connected together using VDE Switch as I was doing with QEMU.
#QEMU VS VIRTUALBOX HOW TO#
All the documents explained beautifully how to accompalish bridging with the ethernet interface on the host machine, but this is not what I wanted. I went through several documents on VirtualBox website and realise that I needed to use bridging in order to do this. The only useful networking option I found was the “Host Interface”. The default NAT networking in VirtualBox does not solve any purpose. What if I want to create an internetwork of VirtualBox virtual machines and QEMU virtual machines.
#QEMU VS VIRTUALBOX WINDOWS#
In my opinion the performance of Windows virtual machines is much better in VirtualBox, perhaps because of the installed guest additions. I installed few OSes in VirtualBox and found the performance pretty good. Sometime back I came across VirtualBox, an excellent replacement for commercial Vmware.
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