Hi Razique, They are located on different compute nodes and allow incoming connections. The VMs that I referred have a fixed IP address. I could see the eth0 interface and it has the fixed IP address.
Thanks, Krishnaprasad From: Razique Mahroua [mailto:razique.mahr...@gmail.com] Sent: Sonntag, 27. Oktober 2013 21:11 To: Narayanan, Krishnaprasad Subject: Re: [Openstack] VMs unable to communicate between each other using their floating IPs Are all located on the same compute node? And all the instances allow incoming connection? Finally make sure the instance you cannot reach have a private IP assigned (not through the dash but check the logs to make sure the instance has indeed an interface up ; usually eth0) - Razique On Oct 27, 2013, at 9:48, Narayanan, Krishnaprasad <naray...@uni-mainz.de<mailto:naray...@uni-mainz.de>> wrote: I could see a strange behavior. I restarted the nova-compute and nova-network. I was able to reach certain floating IPs and few was not. Can I know the reason behind this and some pointers to get rid of this problem? From: Razique Mahroua [mailto:razique.mahr...@gmail.com] Sent: Sonntag, 27. Oktober 2013 17:26 To: Narayanan, Krishnaprasad Cc: Oleg Gelbukh; openstack@lists.openstack.org<mailto:openstack@lists.openstack.org> Subject: Re: [Openstack] VMs unable to communicate between each other using their floating IPs I think that restarting the nova-network and nova-compute services would be sufficient :) On Oct 27, 2013, at 9:14, Narayanan, Krishnaprasad <naray...@uni-mainz.de<mailto:naray...@uni-mainz.de>> wrote: Hi, Thanks for your response. I don't see this setting in my nova.conf. Will it be possible for you to describe the complete command of recreating the floating IPs with -interface flag? Regards, Krishnaprasad From: Oleg Gelbukh [mailto:ogelb...@mirantis.com] Sent: Sonntag, 27. Oktober 2013 16:40 To: Narayanan, Krishnaprasad Cc: openstack@lists.openstack.org<mailto:openstack@lists.openstack.org> Subject: Re: [Openstack] VMs unable to communicate between each other using their floating IPs Narayan, Are you using multi-host? Is 'public_interface' in your nova.conf set? Recently we've had similar situation with a customer. Turned out that traffic going from VM's fixed IP to floating IP of another VM on the same physical host never gets to public interface and thus never SNATed, and response never gets back. We fixed it by unsetting 'public_interface' and re-creating floating IPs with --interface=<public_interface> flag. It ensures that all packets from VMs are source-translated, and also that floating IPs are assigned to correct interface. Hope that helps. -- Best regards, Oleg Gelbukh Mirantis Labs On Fri, Oct 25, 2013 at 11:41 PM, Narayanan, Krishnaprasad <naray...@uni-mainz.de<mailto:naray...@uni-mainz.de>> wrote: Hi all, Im my OpenStack setup, i am using nova-network to manage the networks. I could see that the VMs are unable to communicate between each other via their floating IPs. Can I know what is the reason and how to get rid of the problem? Thanks, Krishnaprasad _______________________________________________ Mailing list: http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack Post to : openstack@lists.openstack.org<mailto:openstack@lists.openstack.org> Unsubscribe : http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack _______________________________________________ Mailing list: http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack Post to : openstack@lists.openstack.org<mailto:openstack@lists.openstack.org> Unsubscribe : http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
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