Those are loopback interfaces created on your host machine, not real routing interfaces. They should *not* be part of an existing routed network that you are using. So if 192.168.0.0/24 is a network that you are already using this environment, then do *not* use those for the vboxnet addresses. It should work with the IP addresses in the blog post, I think. Paul On Sat, Jul 21, 2012 at 7:43 PM, Stephen Liu <satimis at yahoo.com> wrote: > Hi all, > > I'm following; > Expreimenting with OpenStack Essex on Ubuntu 12.04 LTS under > > http://www.tikalk.com/alm/blog/expreimenting-openstack-essex-ubuntu-1204-lts-under-virtualbox > > building OpenStack, Essex. > > But I can't resolve how many NICs I need to install Essex? To my > understanding on the diagram - Quick Overview of The Installation > > eth0 = NIC-0 > eth1 = NIC-1 > eth2 = NIC-2 > > then it needs 3 NICs. > > On the other hand; > vboxnet0 and vboxnet1 are virtual NIC > > then it needs 2 NICs, one for NAT. > > But I have only ONE NIC on the box. Is there any solution? Please help. > TIA > > B.R. > Stephen L > > _______________________________________________ > OpenStack-operators mailing list > OpenStack-operators at lists.openstack.org > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators > > -- Paul Guth Cloudscaling <http://www.cloudscaling.com/> Technical Operations skype: pguth66 phone: +1 408 647 5128 -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack-operators/attachments/20120722/a7b2ad13/attachment.html>