Very good article but there is a problem for me. I am using virtual box 4.2.8 with ubuntu 12.04 host and ubuntu 11.10 guest. I am unable to setup bridge networking beetween host and guest. here i am pasting configuration of interfaces. Configuration on Ubunutu12.04 host
auto lo
iface lo inet loopback
auto br0
iface br0 inet static
address 192.168.56.22
netmask 255.255.255.0
broadcast 192.168.56.255
gateway 192.168.56.1
bridge_ports eth0
bridge_maxwait 0
auto eth0
iface eth0 inet manual
And for ubuntu 11.10 guest, i am selected bridged adapter and under name i selected eth0 interface. And configuration of guest ethernet interface is
auto eth2
iface eth0 inet static
address 192.168.56.23
netmask 255.255.255.0
broadcast 192.168.56.255
gateway 192.168.56.1
But it is not working when i ping it just says destination host unreachable. Please help