Excellent!<div><br><div>You're going to want to remove the 192.* addresses and make sure both NICs are cabled to the same layer-2 network. One NIC will have your 133.* address (host management and API access), and one will be completely unnumbered (VM traffic).</div></div><div><br></div><div>So, if you have your 133.* NIC plugged in to one switch, and your 192.* NIC plugged into another, just move the cables from the 192.* switch and plug them in to the 133.* switch. This is a very rudimentary explanation that doesn't account for any fancy network topology on your side, so, depending on the specific configs on your switches, it *may* not be as simple as that in your environment. The end-goal is that you want both of your NICs to be able to talk on the same network, but only one of them has an address.</div><div><br></div><div>Does that clear things up?</div><div><br></div><div><div class="gmail_quote">On Thu Nov 20 2014 at 2:53:50 AM Georgios Dimitrakakis <<a href="mailto:giorgis@acmac.uoc.gr" target="_blank">giorgis@acmac.uoc.gr</a>> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> Yes!<br>
<br>
I am planning to assign 133.* IP addresses to all guest instances.<br>
<br>
Best,<br>
<br>
George<br>
<br>
On Thu, 20 Nov 2014 02:42:08 +0000, Aaron Segura wrote:<br>
> Okay, I believe I see what youre going for now. Are you planning on<br>
> assigning 133.* addresses directly to your guest instances? <br>
><br>
> On Wed Nov 19 2014 at 5:53:36 PM Dimitrakakis Georgios wrote:<br>
><br>
>> Sorry about the confusion!<br>
>><br>
>> I have two nodes, with two network interfaces each. One configured<br>
>> with 192.* IP and one with 133.*<br>
>> I can access them with SSH directly at 133.*<br>
>><br>
>> Both nodes can ping one another and both nodes can ping Internet<br>
>> addresses e.g. google. com<br>
>><br>
>> No other router available for configuration.<br>
>> No openstack yet.<br>
>><br>
>> So, my question is the following :<br>
>><br>
>> If I want to install openstack should I modify the external network<br>
>> interface so that it doesnt have an IP address? If I do that how<br>
>> can I access the server then?<br>
>><br>
>> I was under the impression that the document was talking about a<br>
>> situation like the above when it clearly doesnt. Thats why I am<br>
>> looking for new guidelines.<br>
>><br>
>> All the best,<br>
>><br>
>> George<br>
>><br>
>> ---- Ο χρήστης Aaron Segura έγραψε ----<br>
>><br>
>> Im not sure I understand. Are you able to ping from your nodes out<br>
>> to the internet at all?<br>
>><br>
>> On Wed Nov 19 2014 at 3:29:54 PM Georgios Dimitrakakis wrote:<br>
>><br>
>>> Aaron it helps a lot and thank you for that.<br>
>>><br>
>>> Unfortunately in my setup there is no router for the management<br>
>>> interface since it is much simpler and has two interfaces: one<br>
>>> that has<br>
>>> an external IP and connects directly to the internet and a<br>
>>> second one<br>
>>> with internal (management) network that cannot be reached from<br>
>>> the<br>
>>> outside. In such a case can you recommend a setup or point me<br>
>>> at a<br>
>>> documentation?<br>
>>><br>
>>> Thanks a lot again,<br>
>>><br>
>>> George<br>
>>><br>
>>> On Wed, 19 Nov 2014 20:39:10 +0000, Aaron Segura wrote:<br>
>>> > When the documentation refers to testing external connectivity<br>
>>> from<br>
>>> > the nodes, it does not mean to test connectivity via the<br>
>>> External<br>
>>> > Interface, irself. It means that you should be able to reach<br>
>>> the<br>
>>> > external network (Internet) and the other nodes, from each<br>
>>> node, via<br>
>>> > the Management Interface. The Management Interface is how you<br>
>>> will<br>
>>> > log in to the nodes via SSH, as well. The network attached to<br>
>>> your<br>
>>> > Management Interface should have a route out to the Internet<br>
>>> and<br>
>>> > provide all the connectivity you need to manage the node,<br>
>>> install<br>
>>> > software, etc...<br>
>>> ><br>
>>> > Hope that helps!<br>
>>> ><br>
>>> > On Wed Nov 19 2014 at 2:19:07 PM Georgios Dimitrakakis wrote:<br>
>>> ><br>
>>> >> First of all let me thank you very much for your clear<br>
>>> replies!<br>
>>> >><br>
>>> >> Yes! That makes sense indeed for the Virtual Machines!<br>
>>> >><br>
>>> >> What about the compute node itself? If I am not wrong at<br>
>>> that<br>
>>> >> point of<br>
>>> >> documentation nova-network hasnt been installed or<br>
>>> configured. So<br>
>>> >> how<br>
>>> >> is it possible the connectivity tests with the external<br>
>>> network<br>
>>> >> to be<br>
>>> >> successful as shown at that point?<br>
>>> >><br>
>>> >> Furthermore if someone wants to have direct SSH access to<br>
>>> the<br>
>>> >> node from<br>
>>> >> the external network how is that achieved? In general how<br>
>>> does<br>
>>> >> the<br>
>>> >> physical node itself access the external network?<br>
>>> >><br>
>>> >> All the best,<br>
>>> >><br>
>>> >> George<br>
>>> >><br>
>>> >> On Wed, 19 Nov 2014 14:25:29 +0000, Aaron Segura wrote:<br>
>>> >> > Think of your external interface as if it were a switch. The<br>
>>> >> guests<br>
>>> >> > are plugged in to the switch. They will have IP addresses<br>
>>> that<br>
>>> >> allow<br>
>>> >> > them to communicate on the network. The physical interface<br>
>>> just<br>
>>> >> ships<br>
>>> >> > packets back and forth between physical and virtual<br>
>>> networks, and<br>
>>> >> > doesnt need its own address. Make more sense?<br>
>>> >> ><br>
>>> >> > On Wed, Nov 19, 2014, 07:53 Georgios Dimitrakakis wrote:<br>
>>> >> ><br>
>>> >> >> Hello stackers!<br>
>>> >> >><br>
>>> >> >> In OpenStack documentation and specifically on Legacy<br>
>>> >> Networking<br>
>>> >> >><br>
>>> >> >><br>
>>> >> ><br>
>>> >> ><br>
>>> >><br>
>>> ><br>
>>> ><br>
>>><br>
>><br>
><br>
> <a href="http://docs.openstack.org/juno/install-guide/install/yum/content/ch_basic_environment.html#basics-networking-nova" target="_blank">http://docs.openstack.org/<u></u>jun<u></u><u></u>o/install-guide/install/<u></u>yum/<u></u>co<u></u>ntent/ch_basic_<u></u>environment.<u></u>htm<u></u>l#basics-<u></u>networking-nova</a><br>
>>> [1]<br>
>>> >> [1]<br>
>>> >> >> [1]<br>
>>> >> >><br>
>>> >> >> says clearly that for a two node installation the<br>
>>> interface<br>
>>> >> >> dedicated<br>
>>> >> >> to the external network should not be configured with an<br>
>>> IP<br>
>>> >> >> address.<br>
>>> >> >><br>
>>> >> >> Is this correct??<br>
>>> >> >><br>
>>> >> >> Furthermore at the "Verify Connectivity" part is pinging<br>
>>> >> >> successfully<br>
>>> >> >> on the external network and my question is how is this<br>
>>> >> happening?<br>
>>> >> >> Does<br>
>>> >> >> it assume that there is a third interface already<br>
>>> connected on<br>
>>> >> >> the<br>
>>> >> >> external network??<br>
>>> >> >><br>
>>> >> >> How is accessing the external network without even<br>
>>> configuring<br>
>>> >> >> the<br>
>>> >> >> interface dedicated at it?? Does it assume that the<br>
>>> internal<br>
>>> >> >> network<br>
>>> >> >> somehow performs a routing??<br>
>>> >> >><br>
>>> >> >> Best regards,<br>
>>> >> >><br>
>>> >> >> G.<br>
>>> >> >><br>
>>> >> >> ______________________________<u></u><u></u><u></u>_________________<br>
>>> >> >> Mailing list:<br>
>>> >> >><br>
>>> <a href="http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack" target="_blank">http://lists.openstack.org/<u></u>cgi<u></u><u></u>-bin/mailman/listinfo/<u></u>openstac<u></u><u></u>k</a> [2]<br>
>>> >> [2] [2]<br>
>>> >> >> Post to : <a href="mailto:openstack@lists.openstack.org" target="_blank">openstack@lists.openstack.org</a> [3] [3] [3]<br>
>>> >> >> Unsubscribe :<br>
>>> >> >><br>
>>> <a href="http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack" target="_blank">http://lists.openstack.org/<u></u>cgi<u></u><u></u>-bin/mailman/listinfo/<u></u>openstac<u></u><u></u>k</a> [4]<br>
>>> >> [4] [4]<br>
>>> >> ><br>
>>> >> ><br>
>>> >> > Links:<br>
>>> >> > ------<br>
>>> >> > [1]<br>
>>> >> ><br>
>>> >> ><br>
>>> >><br>
>>> ><br>
>>> ><br>
>>><br>
>><br>
><br>
> <a href="http://docs.openstack.org/juno/install-guide/install/yum/content/ch_basic_environment.html#basics-networking-nova" target="_blank">http://docs.openstack.org/<u></u>juno<u></u><u></u>/install-guide/install/<u></u>yum/<u></u>con<u></u>tent/ch_basic_<u></u>environment.<u></u>html<u></u>#basics-<u></u>networking-nova</a><br>
>>> [5]<br>
>>> >> [5]<br>
>>> >> > [2]<br>
>>> <a href="http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack" target="_blank">http://lists.openstack.org/<u></u>cgi<u></u><u></u>-bin/mailman/listinfo/<u></u>openstac<u></u><u></u>k</a> [6]<br>
>>> >> [6]<br>
>>> >> > [3] mailto:<a href="mailto:openstack@lists.openstack.org" target="_blank">openstack@lists.<u></u>opensta<u></u><u></u>ck.org</a> [7] [7]<br>
>>> >> > [4]<br>
>>> <a href="http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack" target="_blank">http://lists.openstack.org/<u></u>cgi<u></u><u></u>-bin/mailman/listinfo/<u></u>openstac<u></u><u></u>k</a> [8]<br>
>>> >> [8]<br>
>>> >> > [5] mailto:<a href="mailto:giorgis@acmac.uoc.gr" target="_blank">giorgis@acmac.uoc.gr</a> [9] [9]<br>
>>> ><br>
>>> ><br>
>>> > Links:<br>
>>> > ------<br>
>>> > [1]<br>
>>> ><br>
>>> ><br>
>>><br>
>><br>
><br>
> <a href="http://docs.openstack.org/juno/install-guide/install/yum/content/ch_basic_environment.html#basics-networking-nova" target="_blank">http://docs.openstack.org/<u></u>juno<u></u><u></u>/install-guide/install/<u></u>yum/<u></u>con<u></u>tent/ch_basic_<u></u>environment.<u></u>html<u></u>#basics-<u></u>networking-nova</a><br>
>>> [10]<br>
>>> > [2]<br>
>>> <a href="http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack" target="_blank">http://lists.openstack.org/<u></u>cgi<u></u><u></u>-bin/mailman/listinfo/<u></u>openstac<u></u><u></u>k</a> [11]<br>
>>> > [3] mailto:<a href="mailto:openstack@lists.openstack.org" target="_blank">openstack@lists.<u></u>opensta<u></u><u></u>ck.org</a> [12]<br>
>>> > [4]<br>
>>> <a href="http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack" target="_blank">http://lists.openstack.org/<u></u>cgi<u></u><u></u>-bin/mailman/listinfo/<u></u>openstac<u></u><u></u>k</a> [13]<br>
>>> > [5]<br>
>>> ><br>
>>> ><br>
>>><br>
>><br>
><br>
> <a href="http://docs.openstack.org/juno/install-guide/install/yum/content/ch_basic_environment.html#basics-networking-nova" target="_blank">http://docs.openstack.org/<u></u>juno<u></u><u></u>/install-guide/install/<u></u>yum/<u></u>con<u></u>tent/ch_basic_<u></u>environment.<u></u>html<u></u>#basics-<u></u>networking-nova</a><br>
>>> [14]<br>
>>> > [6]<br>
>>> <a href="http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack" target="_blank">http://lists.openstack.org/<u></u>cgi<u></u><u></u>-bin/mailman/listinfo/<u></u>openstac<u></u><u></u>k</a> [15]<br>
>>> > [7] mailto:<a href="mailto:openstack@lists.openstack.org" target="_blank">openstack@lists.<u></u>opensta<u></u><u></u>ck.org</a> [16]<br>
>>> > [8]<br>
>>> <a href="http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack" target="_blank">http://lists.openstack.org/<u></u>cgi<u></u><u></u>-bin/mailman/listinfo/<u></u>openstac<u></u><u></u>k</a> [17]<br>
>>> > [9] mailto:<a href="mailto:giorgis@acmac.uoc.gr" target="_blank">giorgis@acmac.uoc.gr</a> [18]<br>
>>> > [10] mailto:<a href="mailto:giorgis@acmac.uoc.gr" target="_blank">giorgis@acmac.uoc.gr</a> [19]<br>
>><br>
>>> --<br>
><br>
><br>
> Links:<br>
> ------<br>
> [1]<br>
><br>
> <a href="http://docs.openstack.org/juno/install-guide/install/yum/content/ch_basic_environment.html#basics-networking-nova" target="_blank">http://docs.openstack.org/<u></u>juno<u></u><u></u>/install-guide/install/<u></u>yum/<u></u>con<u></u>tent/ch_basic_<u></u>environment.<u></u>html<u></u>#basics-<u></u>networking-nova</a><br>
> [2] <a href="http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack" target="_blank">http://lists.openstack.org/<u></u>cgi<u></u><u></u>-bin/mailman/listinfo/<u></u>openstac<u></u><u></u>k</a><br>
> [3] mailto:<a href="mailto:openstack@lists.openstack.org" target="_blank">openstack@lists.<u></u>opensta<u></u><u></u>ck.org</a><br>
> [4] <a href="http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack" target="_blank">http://lists.openstack.org/<u></u>cgi<u></u><u></u>-bin/mailman/listinfo/<u></u>openstac<u></u><u></u>k</a><br>
> [5]<br>
><br>
> <a href="http://docs.openstack.org/juno/install-guide/install/yum/content/ch_basic_environment.html#basics-networking-nova" target="_blank">http://docs.openstack.org/<u></u>juno<u></u><u></u>/install-guide/install/<u></u>yum/<u></u>con<u></u>tent/ch_basic_<u></u>environment.<u></u>html<u></u>#basics-<u></u>networking-nova</a><br>
> [6] <a href="http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack" target="_blank">http://lists.openstack.org/<u></u>cgi<u></u><u></u>-bin/mailman/listinfo/<u></u>openstac<u></u><u></u>k</a><br>
> [7] mailto:<a href="mailto:openstack@lists.openstack.org" target="_blank">openstack@lists.<u></u>opensta<u></u><u></u>ck.org</a><br>
> [8] <a href="http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack" target="_blank">http://lists.openstack.org/<u></u>cgi<u></u><u></u>-bin/mailman/listinfo/<u></u>openstac<u></u><u></u>k</a><br>
> [9] mailto:<a href="mailto:giorgis@acmac.uoc.gr" target="_blank">giorgis@acmac.uoc.gr</a><br>
> [10]<br>
><br>
> <a href="http://docs.openstack.org/juno/install-guide/install/yum/content/ch_basic_environment.html#basics-networking-nova" target="_blank">http://docs.openstack.org/<u></u>juno<u></u><u></u>/install-guide/install/<u></u>yum/<u></u>con<u></u>tent/ch_basic_<u></u>environment.<u></u>html<u></u>#basics-<u></u>networking-nova</a><br>
> [11] <a href="http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack" target="_blank">http://lists.openstack.org/<u></u>cgi<u></u><u></u>-bin/mailman/listinfo/<u></u>openstac<u></u><u></u>k</a><br>
> [12] mailto:<a href="mailto:openstack@lists.openstack.org" target="_blank">openstack@lists.<u></u>opensta<u></u><u></u>ck.org</a><br>
> [13] <a href="http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack" target="_blank">http://lists.openstack.org/<u></u>cgi<u></u><u></u>-bin/mailman/listinfo/<u></u>openstac<u></u><u></u>k</a><br>
> [14]<br>
><br>
> <a href="http://docs.openstack.org/juno/install-guide/install/yum/content/ch_basic_environment.html#basics-networking-nova" target="_blank">http://docs.openstack.org/<u></u>juno<u></u><u></u>/install-guide/install/<u></u>yum/<u></u>con<u></u>tent/ch_basic_<u></u>environment.<u></u>html<u></u>#basics-<u></u>networking-nova</a><br>
> [15] <a href="http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack" target="_blank">http://lists.openstack.org/<u></u>cgi<u></u><u></u>-bin/mailman/listinfo/<u></u>openstac<u></u><u></u>k</a><br>
> [16] mailto:<a href="mailto:openstack@lists.openstack.org" target="_blank">openstack@lists.<u></u>opensta<u></u><u></u>ck.org</a><br>
> [17] <a href="http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack" target="_blank">http://lists.openstack.org/<u></u>cgi<u></u><u></u>-bin/mailman/listinfo/<u></u>openstac<u></u><u></u>k</a><br>
> [18] mailto:<a href="mailto:giorgis@acmac.uoc.gr" target="_blank">giorgis@acmac.uoc.gr</a><br>
> [19] mailto:<a href="mailto:giorgis@acmac.uoc.gr" target="_blank">giorgis@acmac.uoc.gr</a><br>
> [20] mailto:<a href="mailto:giorgis@acmac.uoc.gr" target="_blank">giorgis@acmac.uoc.gr</a><br>
> [21] mailto:<a href="mailto:giorgis@acmac.uoc.gr" target="_blank">giorgis@acmac.uoc.gr</a><br>
</blockquote></div></div>