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<div class="moz-cite-prefix">As per
<a class="moz-txt-link-freetext" href="http://docs.openstack.org/folsom/openstack-network/admin/content/demo_logical_network_config.html">http://docs.openstack.org/folsom/openstack-network/admin/content/demo_logical_network_config.html</a>
but slightly modified as per CLI help,<br>
<br>
<pre class="screen">quantum net-create ext_net --tenant-id $TENANT_ID --router:external=True
quantum subnet-create --ip_version 4 --allocation-pool start=192.168.2.151,end=192.168.2.240 \
--gateway 192.168.2.253 <id_of_ext_net> 192.168.2.0/24 -- --enable_dhcp=False
</pre>
<br>
It will create ext_net subnet with preallocated IP range. For each
VM, allocate floating IP from this pool and then associate it with
the internal port.<br>
<br>
Hope it can helps,<br>
-Sylvain<br>
<br>
Le 19/03/2013 13:44, Chathura M. Sarathchandra Magurawalage a
écrit :<br>
</div>
<blockquote
cite="mid:CAHw8T_KaraXxcrj7WBXAvE5AE6yL64JWRWCfZmJVWmgfXG2CfA@mail.gmail.com"
type="cite">
<div dir="ltr">Thanks.
<div><br>
</div>
<div>its <a moz-do-not-send="true" href="http://192.168.2.0/24"
target="_blank">192.168.2.0/24</a></div>
<div><br>
</div>
<div>free ip range: 192.168.2.151 192.168.2.240 </div>
<div><br>
</div>
<div>gw/dhcp server: 192.168.2.253</div>
<div><br>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On 19 March 2013 08:28, Sylvain Bauza
<span dir="ltr"><<a moz-do-not-send="true"
href="mailto:sylvain.bauza@digimind.com" target="_blank">sylvain.bauza@digimind.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div text="#000000" bgcolor="#FFFFFF">
<div>In that case, please refer to my previous e-mail :
use floating IPs bound to the same physical network.<br>
That's up to you to know which IP pools are available
inside your network. Once you get one, create a
external Quantum subnet defined with this IP range.<br>
<br>
Sorry, I have feeling to explain again and again. If
you still don't catch the point, could you please then
tell me your physical net/CIDR, your free IP range and
your gateway, and I'll mix you up the command to
issue.<br>
<br>
-Sylvain<br>
<br>
Le 18/03/2013 18:02, Chathura M. Sarathchandra
Magurawalage a écrit :<br>
</div>
<div>
<div>
<blockquote type="cite">
<div dir="ltr">
<div>Thanks Sylvain,</div>
<div><br>
</div>
There must be a way of doing this without having
to do anything with my default gateway of my
physical network? . Even if I have to I do not
wan to do anything to the physical gateway. All
I need is a way to let the VMs get a dynamic IP
from the physical network. How can I do this.
For example this can be done on virtual box
using a bridge adapter which maps the VM in to
the physical network.
<div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On 18 March 2013
16:05, Sylvain Bauza <span dir="ltr"><<a
moz-do-not-send="true"
href="mailto:sylvain.bauza@digimind.com"
target="_blank">sylvain.bauza@digimind.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote"
style="margin:0 0 0 .8ex;border-left:1px
#ccc solid;padding-left:1ex">
<div text="#000000" bgcolor="#FFFFFF">
<div>Could you please tell me your
"physical network" CIDR ?<br>
Anyway, what you need is not
requiring having a floating IP pool
inside the same network, you can
also play with static routing : if
your physical host does have a
default gw, you can create a static
route from this gw to the VM network
gateway. And on the VM network
gateway, do the same...<br>
<br>
-Sylvain<br>
<br>
Le 18/03/2013 16:53, Chathura M.
Sarathchandra Magurawalage a écrit :<br>
</div>
<div>
<div>
<blockquote type="cite">
<div dir="ltr">
<div class="gmail_extra">
<div>
<div>Hey Sylvain,</div>
</div>
<div><br>
</div>
<div>Basically what I need
is to have the VMs mapped
to my physical network so
that my physical hosts can
directly access the VMs.
How can I do this?</div>
<div><br>
</div>
<div>Thanks.</div>
<br>
<br>
<div class="gmail_quote">On
18 March 2013 15:50,
Sylvain Bauza <span
dir="ltr"><<a
moz-do-not-send="true"
href="mailto:sylvain.bauza@digimind.com" target="_blank">sylvain.bauza@digimind.com</a>></span>
wrote:<br>
<blockquote
class="gmail_quote"
style="margin:0 0 0
.8ex;border-left:1px
#ccc
solid;padding-left:1ex">
<div text="#000000"
bgcolor="#FFFFFF">
<div>Hi,<br>
<br>
I don't understand
your business.
Should you have a <a
moz-do-not-send="true" href="http://192.168.1.0/24" target="_blank">192.168.1.0/24</a>
network for
management, you
could also assign an
external network
with Quantum based
on the same subnet
(ie. <a
moz-do-not-send="true"
href="http://192.168.1.0/24" target="_blank">192.168.1.0/24</a>). <br>
When creating a
floating IP pool,
Quantum does require
at least 3 things :
<br>
- the CIDR<br>
- the beginning and
ending IPs <br>
- the external
gateway <br>
<br>
So, based on what I
previously said, you
only need to create
a <a
moz-do-not-send="true"
href="http://192.168.1.0/24" target="_blank">192.168.1.0/24</a> in
Quantum with .1-.100
(for example) as the
range, .254 being
the external
gateway.<br>
<br>
Thanks,<br>
-Sylvain<br>
<br>
Le 18/03/2013 16:29,
Chathura M.
Sarathchandra
Magurawalage a
écrit :<br>
</div>
<blockquote
type="cite">
<div>
<div>
<div dir="ltr">anyone?
<div
class="gmail_extra"><br>
<div
class="gmail_quote">On
17 March 2013
21:33,
Chathura M.
Sarathchandra
Magurawalage <span
dir="ltr"><<a
moz-do-not-send="true" href="mailto:77.chathura@gmail.com"
target="_blank">77.chathura@gmail.com</a>></span>
wrote:<br>
<blockquote
class="gmail_quote"
style="margin:0
0 0
.8ex;border-left:1px
#ccc
solid;padding-left:1ex">
<div dir="ltr">After
reading a
little bit
more, I think
I have found
what I need.
It is a
provider
network that I
need for the
VMs so that
they can get
access to the
other
resources in
my main
network ( such
as other
physical hosts
that are
connected to
the same
network ).
<div> <br>
</div>
<div>My
question is,
is it possible
to do this
alongside the
use case that
I have
followed (
Provider
router with
private
networks)?</div>
<div><br>
</div>
<div>If so how
can I do this?</div>
<div> <br>
</div>
<div>Thanks.</div>
<div>
<div>
<div
class="gmail_extra"><br>
<div>
<div dir="ltr">
<div>
<div><br>
</div>
</div>
</div>
</div>
<div
class="gmail_quote">On
16 March 2013
01:46,
Chathura M.
Sarathchandra
Magurawalage <span
dir="ltr"><<a
moz-do-not-send="true" href="mailto:77.chathura@gmail.com"
target="_blank">77.chathura@gmail.com</a>></span>
wrote:<br>
<blockquote
class="gmail_quote"
style="margin:0
0 0
.8ex;border-left:1px
#ccc
solid;padding-left:1ex">
<div dir="ltr">
<div>
<div>Hello,</div>
<div><br>
</div>
<div>I want to
know how I can
allocate a
dynamic IP to
the VM from
the same
network as the
openstack
hosts
(controller/network-node/compute
node)
network/management
network . For
example, in
virtual box
you can give
your VM an IP
from the
host's network
using a Bridge
adapter. How
can I do this
in openstack?</div>
<div><br>
</div>
<div>From what
I understand
floating IP's
are used when
you have a
public IP </div>
<div> (which
is static) to
be allocated
to VM's.</div>
<div> </div>
<div>My
openstack
installation
architecture:</div>
<div dir="ltr"><a
moz-do-not-send="true"
href="http://docs.openstack.org/folsom/basic-install/content/basic-install_architecture.html"
target="_blank">http://docs.openstack.org/folsom/basic-install/content/basic-install_architecture.html</a><br>
</div>
</div>
<div dir="ltr">
<br>
</div>
<div>Quantum
use case:</div>
<div dir="ltr"><a
moz-do-not-send="true"
href="http://docs.openstack.org/trunk/openstack-network/admin/content/use_cases_single_router.html"
target="_blank">http://docs.openstack.org/trunk/openstack-network/admin/content/use_cases_single_router.html</a><br>
</div>
</div>
</blockquote>
</div>
<br>
</div>
</div>
</div>
</div>
</blockquote>
</div>
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