On 2020-04-27 16:34, Samuel Sieb wrote:
On 4/26/20 10:22 PM, Ed Greshko wrote:
> On 2020-04-27 12:59, ToddAndMargo via users wrote:
>> On 2020-04-26 20:53, Ed Greshko wrote:
>>> On 2020-04-27 11:49, ToddAndMargo via users wrote:
>>>> both physical network cards are on the host machine. the
>>>> vm's connect through qemu-kvm "Network bridge: br0" to
>>>> the host machines and then get routed to the internet
>>>> through en12, via iptables
>>>
>>> Yes, I know what you've done. I just don't know why.
>>>
>>> I have full connectivity using the virtual devices. So, same question. Why
use physical HW?
>>
>> Because it simulates actual servers I have installed.
>> eno2 is hooked to the internet and eno1 is hoooked
>> up to a [switching] hub that fans out to multiple client
>> workstations. The server is also the firewall
>
> What would not work if you used Virtual HW instead of actual HW?
>
> All of my VM's can access all of the other servers on 3 different LAN segments.
My understanding of his explanation is that the second ethernet is a private network
connecting his VMs to other physical computers.
Right. I suppose there may be situations one would want that. I've just not had the
need.
I noted that the ifcfg-br0 script contained NM_CONTROLLED=no. I never had, and I
don't know
if it is possible, to have a mixture of connections with some controlled by NM and others
not.
The first issue that I would see is that /usr/sbin/ifdown points to a /etc/alternatives
entry. So, you'd either
be calling the NM version which is a script that uses nmcli or the network-scripts version
which doesn't
So, I believe you'd have compatibility issues.
--
The key to getting good answers is to ask good questions.