You can check what error occurred in your Neutron log file. This link may help you: https://bugs.launchpad.net/neutron/+bug/1303998 And I think tag is only for vlan tag, and it's not related. *Best Regards！* *Chao Yan--------------**My twitter：Andy Yan @yanchao727 <https://twitter.com/yanchao727>* *My Weibo：http://weibo.com/herewearenow <http://weibo.com/herewearenow>--------------* 2014-08-26 20:17 GMT+08:00 Chris <contact at progbau.de>: > Hello > > > > The instances I create doesn’t get an IP address. I can see the request on > the neutron node but the DHCP server is not answering. > > > > Neutron successfully creates ports for the instances, the ports are up and > working as expected. > > The dhcp port is also created but with the status: DOWN and > binding:vif_type is binding_failed. > > Please see here: http://pastebin.com/E1Xx1pNw > > > > How could it be binding_faild when the port is already created. > > What is also strange in a different Icehouse installation the tag of the > dhcp port is “1” in this one its “4095”. > > > > Thanks for any help! > > Christoph > > _______________________________________________ > Mailing list: > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack > Post to : openstack at lists.openstack.org > Unsubscribe : > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack > > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack/attachments/20140827/c2215e84/attachment.html>