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Message #11068
Re: Instance IP assignment problem
Hi,
As I told you, I have also a problem for instance IP assignement.
My architecture :
I use Quantum with OVS plugin on 2 servers Essex-1 & Essex-2. Essex-1
runs all services and Essex-2 runs OVS, Quantum-agent & nova-compute
only.
You can see more details here.
My configurations files are here and in my documentation.
Problem Description :
When an instance is created in ESSEX-1, all is working (network).
But when the VM is started on ESSEX-2, it does not get an IP address.
(log file)
I'm sure the problem comes from OVS connection with ESSEX-1.
Do I need to configure something like a trunk or a tunnel between
Essex-1 & Essex-2 ?
I miss something in my configuration, if you have any idea...
Regards
Emilien
Le mardi 01 mai 2012 à 14:35 -0500, Salman Malik a écrit :
> It may help if you can share the log of your launched instance as
> well. There is a possibility that we both are having the same issue.
> Netstack developers can give a definitive answer to this, but it would
> be interesting to learn what goes wrong with a launched instance.
>
> Salman
>
>
>
>
>
>
> ______________________________________________________________________
> Subject: RE: [Openstack] Instance IP assignment problem
> From: emilien.openstack@xxxxxxxxx
> To: salmanmk@xxxxxxxx
> CC: jorge.delacruz@xxxxxxxxxxxx; openstack@xxxxxxxxxxxxxxxxxxx
> Date: Tue, 1 May 2012 21:26:26 +0200
>
> Le mardi 01 mai 2012 à 14:22 -0500, Salman Malik a écrit :
>
> Regarding L3 gateway, I believe its not necessary to have one
> (as the VM hasn't obtained an IP right now, so it can't talk
> to anything outside its net), but I am not sure.
> Regarding your problem, do you see any DHCP responses from the
> DHCP server ? I am asking this because I was having a similar
> problem earlier where I was getting assigned an IP address no
> in my desired fixed_network and I believe that was cause by
> another interfering DHCP server that was replying to discover
> messages before the nova-network could.
>
>
> Here my nova.conf and I don't have any interfering DHCP server :
>
> https://github.com/EmilienM/doc-openstack/blob/master/Configuration%
> 20Files/Essex-1/nova.conf
>
>
> Thanks
>
>
> Salman
>
>
>
>
> ______________________________________________________________
>
> Subject: RE: [Openstack] Instance IP assignment problem
> From: emilien.openstack@xxxxxxxxx
> To: salmanmk@xxxxxxxx
> CC: jorge.delacruz@xxxxxxxxxxxx; openstack@xxxxxxxxxxxxxxxxxxx
> Date: Tue, 1 May 2012 21:06:01 +0200
>
> Hi Salman,
>
>
> I'm thinking about a networking issue. Where is your L3
> gateway in this architecture ? Maybe do you need an ip helper
> tool to redirect DHCP broadcast ?
>
>
> What do you think about my problem (follow up to my last
> e-mail) ?
>
>
> Thanks
>
>
> Emilien
>
> Le mardi 01 mai 2012 à 14:00 -0500, Salman Malik a écrit :
>
> Hi,
>
> Here is the error log: http://pastebin.com/KrNZDrvD
> and nova.conf: http://pastebin.com/Fvd6dSZs
>
> Emilien, I am trying to get an understanding of how
> different Quantum plugins work with OpenStack. Ryu
> plugin is particularly interesting as it uses an
> OpenFlow controller to configure Vswitches.
>
> The problem I am faced with is (I think ) that I
> already have a private network and Quantum should
> assign IP addresses to instances using DHCP. But
> instances send out discover message on laucnh but
> never find a DHCP server (although there are 2
> dnsmasqs running).
>
> Any ideas?
>
> Thanks,
> Salman
>
>
>
>
> ______________________________________________________
>
>
> Date: Tue, 1 May 2012 20:43:44 +0200
> Subject: Re: [Openstack] Instance IP assignment
> problem
> From: jorge.delacruz@xxxxxxxxxxxx
> To: emilien.openstack@xxxxxxxxx
> CC: openstack@xxxxxxxxxxxxxxxxxxx; salmanmk@xxxxxxxx
>
> Hi Emilien and Salman,
> Please, could you upload all the files, errors and
> conf in pastebin or something like that?
> I have troubles to open in phone :)
> Thank you
> El 01/05/2012 20:39, "Emilien Macchi"
> <emilien.openstack@xxxxxxxxx> escribió:
>
> Hi,
>
>
> I have a similar problem when I create a
> network per project_id with Quantum.
>
>
> My VMs don't get IP and I can't understand why
> today.
>
> But when I create a private network for all
> projects, VMs get an IP and all is working
> well.
> Do you have the same problem ?
>
>
> Salman, I'm interesting about your nova.conf.
> I can see you are using Ryu ?
> Can you tell me more about your "use case" or
> architecture ?
>
>
> Thanks
>
>
> Le mardi 01 mai 2012 à 12:28 -0500, Salman
> Malik a écrit :
>
> Hi Jorge,
>
> Thanks for looking into the post.
> I have made changes to the nova.conf
> file so that I only use 10.0.0.x
> network (but the problem is still the
> same). For this configuration, I
> assume that it will give out IPs to
> instances starting from 10.0.0.11. And
> just to inform you, my eth1 is
> configured to be 10.0.0.10 (which is a
> VM itself, and eth1 is configured as a
> host-only network with no DHCP) and
> this interface is plugged in the
> integration bridge used by quantum
> plugins.
>
> Thanks,
> Salman
>
> PS: Error log of a launched instance
> is also attached.
>
>
>
>
> ______________________________________
>
>
>
> Date: Tue, 1 May 2012 19:03:49 +0200
> Subject: Re: [Openstack] Instance IP
> assignment problem
> From: jorge.delacruz@xxxxxxxxxxxx
> To: salmanmk@xxxxxxxx
> CC: openstack@xxxxxxxxxxxxxxxxxxx
>
> Im not really sure but you are using
> range for your environment 10.0.3.x
> and 10.0.0.x for fixed.
> Can you attach a nova network conf?
> Regards
> El 01/05/2012 18:56, "Salman Malik"
> <salmanmk@xxxxxxxx> escribió:
>
> Hi Guys,
>
> Can anyone provide any insight
> to the following question:
> https://answers.launchpad.net/nova/+question/195439
>
> Thanks,
> Salman
>
>
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>
Follow ups
References
-
Instance IP assignment problem
From: Salman Malik, 2012-05-01
-
Re: Instance IP assignment problem
From: Jorge de la Cruz, 2012-05-01
-
Re: Instance IP assignment problem
From: Salman Malik, 2012-05-01
-
Re: Instance IP assignment problem
From: Emilien Macchi, 2012-05-01
-
Re: Instance IP assignment problem
From: Jorge de la Cruz, 2012-05-01
-
Re: Instance IP assignment problem
From: Salman Malik, 2012-05-01
-
Re: Instance IP assignment problem
From: Emilien Macchi, 2012-05-01
-
Re: Instance IP assignment problem
From: Salman Malik, 2012-05-01
-
Re: Instance IP assignment problem
From: Emilien Macchi, 2012-05-01
-
Re: Instance IP assignment problem
From: Salman Malik, 2012-05-01
