VBox TAP Adapter - i can't get any IP adress on guest OS

zoltan · Post by **zoltan** » 10. Jan 2008, 21:24

hi, i'm trying to use VBox with Vista as a host and everyting seems to be ok (i've installed ubuntu 7.10 on virtual machine). but i have one problem - network. i'm trying to use VBox network card (Virtual Box TAP Adapter) , i can see this device on my list but with comment "network unidentified". on guest system i can't get any ip adress (0.0.0.0). does anyone know how to fix this problem? i suppose that this is some Vista issue, why i always get "network unidentified" message while using this network card.

Post by **frank** » 11. Jan 2008, 09:43

Did you connect your host interface to a bridge? If so, is your host getting an IP as well or did you configure a static IP for your host? If your host interface is not bridged, you had to install a DHCP server on the host and assign it to the host interface the guest is attached to.

kissson · Post by **kissson** » 14. Jan 2008, 07:37

if you choose attach to host interface
the tap is your host network adapter
the tun is your guest network adapter

tap should be a network(10.10.10.0/24) different with other real adapter
tap should assign a ip like this 10.10.10.1/24
then you tun can have ip 10.10.10.2/24
a new network is form

you need a dhcp for assigning ip automatically
and you need to route packet if 10.10.10.1 is a gateway for the tun
search ipenablerouter for this
of course dns you need to assign statically to ur tun to browse www

ipenablerouter
simple forwarding between 2 lans
-------------------------------------
192.168.10.1 10.10.10.1
-------------------------------------
| |
| |
| |
| |
192.168.10.2 10.10.10.2

zoltan · Post by **zoltan** » 14. Jan 2008, 20:31

ok, thanks guys 4 your help. i've created a bridge between my host nic and virtualbox tap adapter and everything works fine. once again - thanks!