Hi, thanks for your helps! After I enabled DHCP, my instance can get private ip address now. However, I find that my 2 instances still cannot ping each other successfully. So I want to know if I need to config a DNS server for them? Thanks very much! From: 严超 [mailto:yanchao727 at gmail.com] Sent: 2014年8月27日 14:31 To: Xianyi Ye Cc: <openstack at lists.openstack.org> Subject: Re: [Openstack] Instance cannot get any ip address Try to use: $ip netns to find network namespace. Best Regards！ Chao Yan -------------- My twitter：Andy Yan @yanchao727 <https://twitter.com/yanchao727> My Weibo：http://weibo.com/herewearenow -------------- 2014-08-27 14:23 GMT+08:00 严超 <yanchao727 at gmail.com>: What is the output of ifconfig? Are you using Neutron and ip netns? Best Regards！ Chao Yan -------------- My twitter：Andy Yan @yanchao727 <https://twitter.com/yanchao727> My Weibo：http://weibo.com/herewearenow -------------- 2014-08-27 13:48 GMT+08:00 Xianyi Ye <yexianyi at sina.com>: Hi all, I was working on the external network accessing configuration. But I find that after I created an instance, neither internal ip address nor external ip address could be displayed in the response of “ifconfig” command. However, on Dashboard, I can see both of these 2 ip addresses have been allocated to that instance successfully. Is there anyone knows what’s going on? I do appreciate anyone’s help. Thanks very much! _______________________________________________ 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/20140827/5ac0b9c7/attachment.html>