br100 setup and nova fixed ip range

asked 2013-05-12 05:04:17 -0500

polslinux
85 ●14 ●17 ●20

updated 2013-06-11 10:15:41 -0500

fifieldt

4708 ●12 ●52 ●50 http://docs.openstack....

This is my situation:

An ESXi 5.0 Server (I'm doing a project for my BD);
A pool with 2 VM (1 controller node and 1 compute node)
Ubuntu 13.04 amd64 Server installed on both VM
The controller IP is 172.25.27.11
i've successfully setup keystone, glance and partially nova

My problem with nova is the creation of the br100 and the fixed range subnet. Inside the /etc/network/interfaces file i have:

auto lo
iface lo inet loopback

auto eth0
iface eth0 inet dhcp

auto br100
iface br100 inet dhcp
bridge_ports eth0
bridge_stp off
bridge_fd 0
bridge_maxwait 0

inside the file /etc/nova/nova.conf i have:

# NETWORK
network_manger_nova=nova.network.manger.FlatDHCPManager
my_ip=172.25.27.11
fixed_range=172.25.27.0/24
public_interface=eth0
vlan_interface=eth0
flat_interface=eth0
flat_network_bridge=br100

I have also enabled ip forwarding inside /etc/sysctl.conf and i have set eth0 promisc with ip link set eth0 promisc on.

The cmd brctl show show:

bridge name      bridge id    STP enabled        interfaces
br100            8000.xxxx    no                 eth0

What i am doing wrong?

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Comments

1

Take a look here from my answer: https://ask.openstack.org/question/508/trying-to-integrate-vms-to-existing-lan/

Alen Komljen ( 2013-05-12 05:36:50 -0500 )edit

on the controller node have i to write br100 ecc ecc inside etc/network/interfaces ??

polslinux ( 2013-05-12 07:35:43 -0500 )edit

No, just on compute node.

Alen Komljen ( 2013-05-12 07:40:09 -0500 )edit

thanks, you've solved my problem :D :D

polslinux ( 2013-05-12 07:46:39 -0500 )edit

ps last thing: eth0 have to be set "promisc on" or off?

polslinux ( 2013-05-12 07:47:34 -0500 )edit

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answered 2013-05-13 08:25:57 -0500

epillet

60 ●2 ●3 ●9

Hi

I think you should configure the adress on br100 as well, like this :

iface br100 inet static
    address 172.25.27.11
    netmask 255.255.255.0
    bridge_stp off
    bridge_fd 0

Could you also check without this :

bridge_ports eth0

If you are not sure of the upper lines, what do you get from this ?

#ifdown -a; ifup -a;

Could you also try to create the fixed network with this command ?

nova network-create private --fixed-range-v4=172.25.27.0/24 --bridge-interface=br100

Sources :

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i don't understand anthing xD have or don't have to write iface br100 ecc ecc on the controlloer node??

polslinux ( 2013-05-15 04:39:31 -0500 )edit

Alen Komljen seems to believe it would correct your problem, and you said it did. As the question wasn't closed, I didn't see his answer at first, so I posted another possibility. But, once more, if everything is ok with his answer, no use to change anything !

epillet ( 2013-05-16 02:04:00 -0500 )edit

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1

answered 2013-07-12 02:23:00 -0500

jacky velluet

31 ●1 ●4 ●7

Hello,

You have write "network_manger_nova=nova.network.manger.FlatDHCPManager" I think this is "network_manager_nova=nova.network.manager.FlatDHCPManager"

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br100 setup and nova fixed ip range

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br100 setup and nova fixed ip range