openstack team mailing list archive

[Emilien Macchi <emilien.openstack@xxxxxxxxx>]

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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>                 
>                 
> 
> 
>