Dear,
I think this is because some software (not vbox) can not deal with data
packs
under bridge network.
I am using a windows on linux, with bridge network. And on my gateway,
just
data flow from linux host, no windows guest at all.
Thanks.
On Tuesday 11 December 2007 15:07:14 Stefan Lesicnik wrote:
> Hi Guys,
>
> I am new to VirtualBox. I was using Vmware, and due to a number of
> issues (timing, crashing, io related) decided to give VirtualBox a try,
> and I am very impressed. System is nice and responsive. (Although this
> morning under heavy load, i did get crashes and I am still
> investigating. Adding nohz=off to kernel of guest has seem to improve
> things)
>
> The question I have is about the networking. With bridged networking on
> vmware, it worked, so I just want to see what I am missing.
>
> I have a VirtualBox Host and a VirtualBox guest running under that host.
>
> Host is Ubunty Gutsy, guest is Gentoo and VirtualBox is 1.52.
>
> I configured a bridge under Gutsy br0 consisting of eth0 and created an
> interface called vbox0 with the VBoxAddIF command and added it to the
> br0 interface.
>
> The gentoo vm boots up fine, sets an IP address and i can communicate
> with the network no problem. I start a pppoe session on the guest and
> it has an external ip address also.
>
> From the guest, i can access the internal machines no problem. The
> problem comes in when trying to use a DNAT on the firewall (running on
> the guest). The connection just never goes through. I am not sure where
> it does actually go.
>
> The other thing i've noticed is that people that are connecting to
> server from internal, appear as if they come from the virtual host box's
> bridged ip. Is this normal behaviour?
>
> eg. everyone comes from this ip imapd: LOGIN, user=removed,
> ip=[193.168.87.250], protocol=IMAP
>
> which is the ip address of the virtualbox host.
>
> I would still expect to see them come from their actual IP address.
>
> The only thing I dont do (but have tried) is to put eth0 on the host in
> promisc mode. Doesnt seem to make a difference.
>
> Does anyone have a similair issue / know whats going on?
>
> Thanks very much.
>
> Stefan
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