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[Salman Malik <salmanmk@xxxxxxxx>]

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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