5:32 a.m.
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Le 15/09/2016 à 23:27, Edward Haas a écrit :
On Thu, Sep 15, 2016 at 3:43 PM, Nicolas Ecarnot <nicolas(a)ecarnot.net
<mailto:nicolas@ecarnot.net>> wrote:
Hello,
I'm trying to setup a nested oVirt for the first time, and
according to what I read around and experience, some special
network settings have to be chosen.
For this first try, the bare-metal host is a Debian, running KVM,
and the virtual NICs are setup as macvtap in VEPA mode.
On what device you attached it? Bridge? the physical nic?
On my physical host, ifconfig is showing the following devices :
- lo, obviously
- eth0, primary used
- wlan0, not used, WIFI...
- virbr0
- virbr0-nic
The last two devices were created when installing and playing with the
KVM Virtual Machine Manager.
When trying to assign one of them to a VM, the only choices are :
- NAT
- eth0: macvtap
- wlan0: macvtap
- custom
and the source mode can be chosen between :
- Bridge
- VEPA
- Private
- Passthrough
My main goal is simplicity, and I'd rather use simple bridging, no NAT,
simple.
What would be the simplest choice?
I'm not up to date with macvtap, but I think I understood that one
of its limit was that no packet could be exchanged between the
host and the guests. So far, this is leading me to access my own
local VMs from another host. Too bad.
I'm also witnessing frequent loss of packets.
So far, I'm also seeing that guests can not ping each others, so
I'm not going further before having solved these basic issues.
By definition: http://virt.kernelnewbies.org/MacVTap
I'm remembering the good old times of lots of bridges where my VMs
could be reached by anyone (this was desired), but virt manager is
not offering me this choice. I also would like to avoid NAT for
other reasons.
To you all (4) people who are playing with nested oVirt :
- which is your preferred bare metal OS?
- which is your preferred guest (first virt level) OS?
- which network setups and modes are working best?
Thank you.
--
Nicolas ECARNOT
_______________________________________________
Users mailing list
Users(a)ovirt.org <mailto:Users@ovirt.org>
http://lists.ovirt.org/mailman/listinfo/users
<http://lists.ovirt.org/mailman/listinfo/users>
--
Nicolas ECARNOT
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<div class="moz-cite-prefix">Le 15/09/2016 à 23:27, Edward Haas a
écrit :<br>
</div>
<blockquote
cite="mid:CALmkdFQxxAC9PEvq0tN-B2by6WB7p+1ddPWFK-pGGXs7MeQKEg@mail.gmail.com"
type="cite">
<div dir="ltr"><br>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Thu, Sep 15, 2016 at 3:43 PM,
Nicolas Ecarnot <span dir="ltr"><<a
moz-do-not-send="true" target="_blank"
href="mailto:nicolas@ecarnot.net">nicolas@ecarnot.net</a>></span>
wrote:<br>
<blockquote style="margin:0px 0px 0px 0.8ex;border-left:1px
solid rgb(204,204,204);padding-left:1ex"
class="gmail_quote">Hello,<br>
<br>
I'm trying to setup a nested oVirt for the first time, and
according to what I read around and experience, some
special network settings have to be chosen.<br>
<br>
For this first try, the bare-metal host is a Debian,
running KVM, and the virtual NICs are setup as macvtap in
VEPA mode.<br>
</blockquote>
<div><br>
On what device you attached it? Bridge? the physical nic?<br>
</div>
</div>
</div>
</div>
</blockquote>
<br>
On my physical host, ifconfig is showing the following devices :<br>
- lo, obviously<br>
- eth0, primary used<br>
- wlan0, not used, WIFI...<br>
- virbr0<br>
- virbr0-nic<br>
<br>
The last two devices were created when installing and playing with
the KVM Virtual Machine Manager.<br>
<br>
When trying to assign one of them to a VM, the only choices are :<br>
- NAT<br>
- eth0: macvtap<br>
- wlan0: macvtap<br>
- custom<br>
<br>
and the source mode can be chosen between :<br>
- Bridge<br>
- VEPA<br>
- Private<br>
- Passthrough<br>
<br>
My main goal is simplicity, and I'd rather use simple bridging, no
NAT, simple.<br>
<br>
What would be the simplest choice?<br>
<br>
<blockquote
cite="mid:CALmkdFQxxAC9PEvq0tN-B2by6WB7p+1ddPWFK-pGGXs7MeQKEg@mail.gmail.com"
type="cite">
<div dir="ltr">
<div class="gmail_extra">
<div class="gmail_quote">
<div> <br>
</div>
<blockquote style="margin:0px 0px 0px 0.8ex;border-left:1px
solid rgb(204,204,204);padding-left:1ex"
class="gmail_quote">
I'm not up to date with macvtap, but I think I understood
that one of its limit was that no packet could be
exchanged between the host and the guests. So far, this is
leading me to access my own local VMs from another host.
Too bad.<br>
</blockquote>
<blockquote style="margin:0px 0px 0px 0.8ex;border-left:1px
solid rgb(204,204,204);padding-left:1ex"
class="gmail_quote">
I'm also witnessing frequent loss of packets.<br>
<br>
So far, I'm also seeing that guests can not ping each
others, so I'm not going further before having solved
these basic issues.<br>
</blockquote>
<div><br>
By definition: <a moz-do-not-send="true"
href="http://virt.kernelnewbies.org/MacVTap">http://virt.ker...
<br>
</div>
<blockquote style="margin:0px 0px 0px 0.8ex;border-left:1px
solid rgb(204,204,204);padding-left:1ex"
class="gmail_quote">
</blockquote>
<blockquote style="margin:0px 0px 0px 0.8ex;border-left:1px
solid rgb(204,204,204);padding-left:1ex"
class="gmail_quote">
I'm remembering the good old times of lots of bridges
where my VMs could be reached by anyone (this was
desired), but virt manager is not offering me this choice.
I also would like to avoid NAT for other reasons.<br>
<br>
To you all (4) people who are playing with nested oVirt :<br>
- which is your preferred bare metal OS?<br>
- which is your preferred guest (first virt level) OS?<br>
- which network setups and modes are working best?<br>
<br>
Thank you.<span class="gmail-HOEnZb"><font
color="#888888"><br>
<br>
-- <br>
Nicolas ECARNOT<br>
______________________________<wbr>_________________<br>
Users mailing list<br>
<a moz-do-not-send="true" target="_blank"
href="mailto:Users@ovirt.org">Users@ovirt.org</a><br>
<a moz-do-not-send="true" target="_blank"
rel="noreferrer"
href="http://lists.ovirt.org/mailman/listinfo/users">http://...
</font></span></blockquote>
</div>
<br>
</div>
</div>
</blockquote>
<br>
<p><br>
</p>
<pre class="moz-signature" cols="72">--
Nicolas ECARNOT
</pre>
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