[virt-tools-list] Bridge connection question

[Hetz Ben Hamo]

DAMN!
I forgot to DELETE my enp30s0f0 first before trying to assign it as a
slave.

Thanks for the help Cole ;)



On Tue, Feb 5, 2019 at 7:15 PM Cole Robinson <crobinso at redhat.com> wrote:

> On 2/5/19 10:15 AM, Hetz Ben Hamo wrote:
> > Hi,
> >
> > The following thing drives me nuts. I have 2 nics on my
> > machine: enp30s0f0 (which is active) and enp30s0f1 (which is
> > disconnected). I've also created a nat network which uses the internal
> > NAT (i've called it "nat-net").
> >
> > What I want to do is simple: I want that the VM will get a an IP from
> > the external DHCP, just like other machines in the LAN, and be able to
> > access the VM from other machines in the LAN. Just like MACVTAP but with
> > access from host to guests and other machines to guest (this is
> > important to me since I want to set a fixed IP in the guest and register
> > it in the internal DNS).
> >
> > No matter what tool I use - nmtui, "connection details/Network
> > Interfaces" - I cannot select my active network connection (enp30s0f0)
> > whether it's disconnected or connected - to create a bridge or anything
> > else to perform this task.
> >
> > How can I perform this? link to info/howto or anything useful would be
> > welcome.
> > Thanks
>
> I've used this as a guide roughly:
>
>
> https://www.happyassassin.net/2014/07/23/bridged-networking-for-libvirt-with-networkmanager-2014-fedora-21/
>
> For example if you want to bridge enp30s0f0, do
>
> - Stop the interface: nmcli con down enp30s0f0
> - Open nm-connection-editor
> - Set enp30s0f0 to _not_ 'connect automatically'
> - Create a bridge, say named bridge0
> - Under bridged connections, click add, select ethernet
> - In the ethernet dialog, click Device, select enp30s0f0 MAC.
> - Name the ethernet bridge0-enp30s0f0. Save everything and exit
> - Save everything and exit. May need to explictly nmcli con up bridge0
> - If you want to switch back to non-bridged mode, turn off bridge0 and
> bridge0-enp30s0f0 autostart, and turn on enp30s0f0 autostart
>
> Then have your VM use the bridge0 bridge
>
> - Cole
>
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