Hi Ahmed - I have logged a doc bug to clear up this mismatch: https://bugs.launchpad.net/openstack-manuals/+bug/1061352.
Appreciate you asking! Here's some explanation for each setting. fixed_range - fixed block of IP addresses handed out to VMs as they're provisioned. So these could be a 10.0.0.0/4 block if you want, or the 192... block. public_interface - some say this needs to be a physical nic, but when you're running a POC on a VM on a laptop in VirtualBox for example, it can be br100. It's what DevStack defaults to. This setting indicates the interface nova-network uses to send the floating ip traffic on the correct network. So if you have nova-network on each compute node then yes, it belongs on the compute node. The Install/deploy guide walks through Flat DHCP as the network manager. If you use --network_bridge=br100 when you run the nova-manage network command, nova will set up the bridge for you. This example command uses 192.168.100.0/24 for the fixed range of IP addresses: http://docs.openstack.org/trunk/openstack-compute/install/apt/content/compute-create-network.html Hope this helps. Others on the list, feel free to correct my explanations as needed! Thanks, Anne On Wed, Oct 3, 2012 at 6:46 PM, Ahmed Al-Mehdi <ah...@coraid.com> wrote: > Hello, > > I am following the steps in "OpenStack Install and Deploy – RedHat Ubuntu" > (Folsom) to setup a Controller node. The section "Configuring OpenStack > Compute" ( > http://docs.openstack.org/trunk/openstack-compute/install/apt/content/compute-minimum-configuration-settings.html > ) gives a snippet of an example of the values of parameters in the > nova.conf file. > > The document first lists some common settings in nova.conf file. I am > highlighting the following two which I am concerned about: > > fixed_range=192.168.100.0/24 > public_interface=eth0 > > The Document right after gives the whole content of a sample (usable) > nova.conf file for the Controller Node, in which the above settings are set > as follows: > > fixed_range=10.0.0.0/24 > public_interface=br100 > > I am assuming "fixed_range=192.168.100.0/24" is the correct setting. > However, can someone please help as to the correct setting of > "public_interface". And the same setting value would be applicable for the > Compute Node, is that right? > > Thank you very much in advance. > > Regards, > > Ahmed. > > > > _______________________________________________ > Mailing list: https://launchpad.net/~openstack > Post to : openstack@lists.launchpad.net > Unsubscribe : https://launchpad.net/~openstack > More help : https://help.launchpad.net/ListHelp > _______________________________________________ Mailing list: https://launchpad.net/~openstack Post to : openstack@lists.launchpad.net Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp