Suggestion about Networking: guest with dhcp

[sirio81]

Hi all, I NEED to reach Internet with my guest.
My guest is skolelinux, a debian distribution with many network services preconfigured. Because of that, it works also like DHCP.
Its virtual network card is set to use NAT and the documentatin says virtualbox has its own DHCP service that gives the 10.0.2.0 network address to the first network card.

Well, the skolelinux DHCP does almost the same, it gives the 10.0.2.0/23 network address.

I think is not good Idea to change the skolelinux settings because the other services could not work anymore.

What do you suggest to reach Internet?

Thank you!

[greenpossum]

You can change the NATed subnet in a VBox VM, see the documentation.

[stephanecharette]

You can change the NATed subnet in a VBox VM, see the documentation.

This is nice to know. I wasn't aware of this either. Just found it now -- check out section 9.11 of the user manual: "Configuring the address of a NAT network interface".

Stéphane

[sirio81]

I forgot to say that the host is running debian lenny and I'm using virtualbox 1.6.6 OSE.

About my problem, maybe, the best way is to use Host Interface Networing.
I already try to use it but without success.

Question about HIF:
Following the guide I run this command to create and add vbox0 to the bridge.
VBoxAddIF vbox0 <user> bro
1-After the reboot, is vbox0 still part of the bridge?
eth0 sure is becasue is because it's set by /etc/network/interfaces but how do I know if vbox0 is part of the brige? Wich command can I use to see that?

I was thinking to edit /etc/network/interfaces adding also vbox0 to the bridge:

auto br0
iface br0 inet dhcp
bridge_ports eth0 vbox0

2-is that correct?


3-Once the bridge is set up, I wonder wich IP addresses the interfaces are going to take, or better, wich IP addresses I should give them?

[Sasquatch]

Please check the Forum FAQ about your issues. Vbox0 should be added to the bridge (seen by 'brctl show') when you start the VM.

NAT should be enough for you. What errors do you get?

[sirio81]

The faq don't answer my questions. I know that probably this is not the right palce to post them: they are about net concept more than virtualbox related.

Anyway, this mornig (before go to work )I had success with the bridge.
The only thing I did was to add vbox0 in /etc/network/interfaces as I worte in my previous post.

auto br0
iface br0 inet dhcp
bridge_ports eth0 vbox0

Maybe it was not neccessary. I didn't know how to check if vbox0 was realy in the bridge or not and I was thinking that probably, it needed to be set up in this configuration file to be restore at each reboot. It worked:

i reached my router from the guest that got a configured my the router dhcp !!

I gave a fast watch to ifconfing on the host and I've seen vobx0 didn't have any IP assigned. I do not remember what was shown for eth0 and vbox0.

Whell, I'll try to clear better my idea and ask more precise questions.
Thanks.

[Sasquatch]

Bridge enslaved interfaces should not get an IP, the bridge should. Your setup is working now, no problems with it. I am going to add a full config for HIF setup for Ubuntu Guests in either the FAQ or Linux Hosts (with a link to it in the FAQ).