Run the command  route -n
and check the gateway IP,  it should be pointing to your Internet router.

Check on your real machine and on the VM

Then check on the VM machine when you're running in NAT mode

I'm curious how the NAT mode gets out

In bridged mode, both machines should point to the Internet router




On Wed, Nov 16, 2022, 7:15 AM Keith Smith via PLUG-discuss <
plug-discuss@lists.phxlinux.org> wrote:

> On 2022-11-15 22:09, Nathan O'Brennan via PLUG-discuss wrote:
> > Keith,
> > I'm stretching here...
> >
> > Sounds to me like the firewall may be causing issues with the bridge,
> > or maybe ip forwarding is not enabled? Try turning off the firewall
> > completely and see if there is a difference? I think Ubuntu uses ufw?
>
> Definitely something is blocking access to the internet when in bridged
> mode.  I checked ufw and it was disabled.  I'll check again.
>
> Thanks!!
>
>
> > So try
> > sudo ufw stop
> >
> > or
> >
> > sudo ufw disable
> > Then reboot.
> > You can also try ip forwarding
> > sysctl net.ipv4.ip_forward=1
> > I don't think you need to reboot after this as it happens immediately.
> > Try this before and after the firewall disable.
> >
> > On Tuesday, November 15, 2022 8:19:21 PM CST Keith Smith via
> > PLUG-discuss wrote:
> >
> >> Hi,
> >
> >>
> >
> >> I uninstalled VirtualBox 7.0 that I installed from a .deb I
> > dowloaded
> >
> >> from the website on my Kubuntu 22.04 box.
> >
> >>
> >
> >> I installed VB through the use of the GUI.  It was version 6.1.
> >
> >>
> >
> >> Installed Ubuntu server 20.04 and set the network to bridged.
> >
> >>
> >
> >> Problem persists.
> >
> >>
> >
> >> Broke out my Win 10 laptop and installed VB on it.  Created a Ubuntu
> >
> >
> >> 20.04 VM and change the network to Bridged and it worked.  I could
> > ping
> >
> >> it from my win box on my local net and the Ubuntu VM was Internet
> > aware.
> >
> >>
> >
> >> Not sure what this proves other than the install and configure
> > should be
> >
> >> an easy process.
> >
> >>
> >
> >> Something is not right on my Kubuntu/VB/Ubuntu server setup.  The
> >
> >> Kubuntu seems to be blocking the VM from accessing the Internet.
> > Any
> >
> >> thoughts are much appreciated.
> >
> >>
> >
> >> Keith
> >
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> >
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> >
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> >
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