I had a similar problem before. My problem was that the nic driver on the compute instance (your Essex 2) was dropping vlan tags, and then, openvswitch wasn > > can you find dhcp requests by using tcpdump for example ? > > sorry for "off-topic" but there may be many reasons of such issue with > dhcp. last one for me was old dhcp client(Ubuntu) and udp checksum error. I > have essex on centos and was trying ubuntu vm. > > On Thu, May 3, 2012 at 12:48 PM, Emilien Macchi < > emilien.openst...@gmail.com> wrote: > >> ** >> All seems alright but not working yet. >> >> >> http://paste.openstack.org/show/14791/ >> >> >> >> I have executed on both servers : >> >> ovs-vsctl add-port br-int eth1 >> >> >> Need I do something else ? >> >> How the DHCP is working in this case ? >> >> >> >> >> >> >> Le jeudi 03 mai 2012 à 09:29 +0100, Bilel Msekni a écrit : >> >> Then the problem isn't in the instance but in the nova-network service , >> please check if it is working well >> >> as well as give us the output log when you attempt to create a new >> instance. >> >> >> ------------------------------ >> >> Subject: RE: [Openstack] Instance IP assignment problem >> From: emilien.openst...@gmail.com >> To: ski...@hotmail.fr >> CC: salma...@live.com; openstack@lists.launchpad.net >> Date: Thu, 3 May 2012 10:21:37 +0200 >> >> Fixed IP >> >> >> >> Le jeudi 03 mai 2012 à 09:15 +0100, Bilel Msekni a écrit : >> >> Fixed IP or Floating IP ? >> >> >> ------------------------------ >> >> >> From: emilien.openst...@gmail.com >> To: salma...@live.com >> Date: Thu, 3 May 2012 09:55:31 +0200 >> CC: openstack@lists.launchpad.net >> Subject: Re: [Openstack] 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<https://github.com/EmilienM/doc-openstack/blob/master/Documentation/How%20to%20setup%20OpenStack%20Essex.pdf> >> . >> >> My configurations files are >> here<https://github.com/EmilienM/doc-openstack/tree/master/Configuration%20Files>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 <http://paste.openstack.org/show/14775/>) >> >> 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.openst...@gmail.com >> To: salma...@live.com >> CC: jorge.delac...@stackops.com; openstack@lists.launchpad.net >> 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.openst...@gmail.com >> To: salma...@live.com >> CC: jorge.delac...@stackops.com; openstack@lists.launchpad.net >> 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.delac...@stackops.com >> To: emilien.openst...@gmail.com >> CC: openstack@lists.launchpad.net; salma...@live.com >> >> 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.openst...@gmail.com> >> 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.delac...@stackops.com >> To: salma...@live.com >> CC: openstack@lists.launchpad.net >> >> 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" <salma...@live.com> 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 : openstack@lists.launchpad.net >> Unsubscribe : https://launchpad.net/~openstack >> More help : https://help.launchpad.net/ListHelp >> >> _______________________________________________ >> Mailing list: https://launchpad.net/~openstack >> Post to : openstack@lists.launchpad.net >> Unsubscribe : https://launchpad.net/~openstack >> More help : https://help.launchpad.net/ListHelp >> >> >> >> >> >> >> >> >> >> _______________________________________________ Mailing list: >> https://launchpad.net/~openstack Post to : >> openstack@lists.launchpad.netUnsubscribe : >> https://launchpad.net/~openstack More help : >> https://help.launchpad.net/ListHelp >> >> >> >> >> >> _______________________________________________ >> Mailing list: https://launchpad.net/~openstack >> Post to : openstack@lists.launchpad.net >> Unsubscribe : https://launchpad.net/~openstack >> More help : https://help.launchpad.net/ListHelp >> >> > > _______________________________________________ > Mailing list: https://launchpad.net/~openstack > Post to : openstack@lists.launchpad.net > Unsubscribe : https://launchpad.net/~openstack > More help : https://help.launchpad.net/ListHelp > >
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