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.
Salman Subject: RE: [Openstack] Instance IP assignment problem From: [email protected] To: [email protected] CC: [email protected]; [email protected] 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: [email protected] To: [email protected] CC: [email protected]; [email protected] 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" <[email protected]> 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: [email protected] To: [email protected] CC: [email protected] 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" <[email protected]> escribió: Hi Guys, Can anyone provide any insight to the following question: https://answers.launchpad.net/nova/+question/195439 Thanks, Salman _______________________________________________ Mailing list: https://launchpad.net/~openstack Post to : [email protected] Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp _______________________________________________ Mailing list: https://launchpad.net/~openstack Post to : [email protected] Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp
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