Open Stack

When the documentation refers to testing external connectivity from the
nodes, it does not mean to test connectivity via the External Interface,
irself.  It means that you should be able to reach the external network
(Internet) and the other nodes, from each node, via the Management
Interface.  The Management Interface is how you will log in to the nodes
via SSH, as well.  The network attached to your Management Interface should
have a route out to the Internet and provide all the connectivity you need
to manage the node, install software, etc...

Hope that helps!

On Wed Nov 19 2014 at 2:19:07 PM Georgios Dimitrakakis <giorgis at acmac.uoc.gr>
wrote:

>  First of all let me thank you very much for your clear replies!
>
>  Yes! That makes sense indeed for the Virtual Machines!
>
>  What about the compute node itself? If I am not wrong at that point of
>  documentation nova-network hasn't been installed or configured. So how
>  is it possible the connectivity tests with the external network to be
>  successful as shown at that point?
>
>  Furthermore if someone wants to have direct SSH access to the node from
>  the external network how is that achieved? In general how does the
>  physical node itself access the external network?
>
>
>  All the best,
>
>
>  George
>
>
>
>  On Wed, 19 Nov 2014 14:25:29 +0000, Aaron Segura wrote:
> > Think of your external interface as if it were a switch. The guests
> > are plugged in to the switch. They will have IP addresses that allow
> > them to communicate on the network. The physical interface just ships
> > packets back and forth between physical and virtual networks, and
> > doesnt need its own address. Make more sense?
> >
> > On Wed, Nov 19, 2014, 07:53 Georgios Dimitrakakis  wrote:
> >
> >>  Hello stackers!
> >>
> >>  In OpenStack documentation and specifically on Legacy Networking
> >>
> >>
> >
> >  http://docs.openstack.org/juno/install-guide/install/yum/
> content/ch_basic_environment.html#basics-networking-nova
> >> [1]
> >>
> >>  says clearly that for a two node installation the interface
> >> dedicated
> >>  to the external network should not be configured with an IP
> >> address.
> >>
> >>  Is this correct??
> >>
> >>  Furthermore at the "Verify Connectivity" part is pinging
> >> successfully
> >>  on the external network and my question is how is this happening?
> >> Does
> >>  it assume that there is a third interface already connected on
> >> the
> >>  external network??
> >>
> >>  How is accessing the external network without even configuring
> >> the
> >>  interface dedicated at it?? Does it assume that the internal
> >> network
> >>  somehow performs a routing??
> >>
> >>  Best regards,
> >>
> >>  G.
> >>
> >> _______________________________________________
> >> Mailing list:
> >> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack [2]
> >> Post to     : openstack at lists.openstack.org [3]
> >> Unsubscribe :
> >> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack [4]
> >
> >
> > Links:
> > ------
> > [1]
> >
> > http://docs.openstack.org/juno/install-guide/install/yum/
> content/ch_basic_environment.html#basics-networking-nova
> > [2] http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
> > [3] mailto:openstack at lists.openstack.org
> > [4] http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
> > [5] mailto:giorgis at acmac.uoc.gr
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstack.org/pipermail/openstack/attachments/20141119/4d7cfe6f/attachment.html>