On Sat, Sep 2, 2017 at 1:57 AM, Divneet Singh <divneetsingh...@gmail.com> wrote: >>What I usually do, and this might not be easiest/best, is, given you >>do have console access, to manually set the IP in the cirrus node. > >>Then I enter the ip name space for the dhcp server on the network node >>(sudo ip netns exec qdhcp-<thenetwork> bash), and see if I can ping >>the cirrus node and vice-versa, things like that. Making sure to add a >>security group rule to at least allow ICMP. See if you can at least >>get an arp entry for the virtual machine's IP. > >>Usually if there is no connectivity at all it's b/c a vlan is missing >>for the physical interface on the switch (not sure how your deployment >>is setup), or the also neutron configuration settings are incorrect in >>terms of bridge mappings and such, usually something simple like that. > >>Another option is to reboot or retry dhcp on the cirrus vm and tcpdump >>on the physical interface the dhcp server is on and watch for dhcp >>traffic, and you could do that on the compute node as well, looking >>for both request and response, again to validate basic connectivity. > >>If you still are having issues, let us know how you deployed openstack > (distro?) and what kind of network you are using (vxlan, vlan?), > whether it's linux bridge or ovs, things like that. > >>Thanks, >>Curtis. > > > I have deployed the nodes using a virtual box & set up nat 2 nat networks , > configured the neutron service according to self service network guide . I > have doubled checked the neutron configuration . I do agree to fact the >
A bit might have gotten cut off there. :) At any rate, I'm not sure what nat 2 nat networks are in virtual box, but I'm going to guess that you have a problem in your virtual box networking setup. You'll have to investigate those networks and make sure they are setup in a way that will work with your openstack deployment. If you are just trying out openstack, perhaps a single node devstack install would be a good place to start and then move to more advanced deployments from there? Thanks, Curtis. > Although i can't make out whether there is connectivity between the nodes. > I get the following output when i run the tcp dump on the controller node . > > listening on enp0s3, link-type EN10MB (Ethernet), capture size 262144 bytes > 12:48:26.488533 IP 192.168.10.10.22 > 192.168.10.2.58970: Flags [P.], seq > 1408700411:1408700519, ack 23895, win 40080, length 108 > 12:48:26.488719 IP 192.168.10.10.22 > 192.168.10.2.58970: Flags [P.], seq > 108:144, ack 1, win 40080, length 36 > > Output on the compute node . > > listening on enp0s3, link-type EN10MB (Ethernet), capture size 262144 bytes > 12:59:21.558954 IP 192.168.10.20.22 > 192.168.10.10.60664: Flags [P.], seq > 1404672109:1404672297, ack 639164055, win 312, options [nop,nop,TS val > 677134 ecr 715780], length 188 > 12:59:21.559252 IP 192.168.10.10.60664 > 192.168.10.20.22: Flags [.], ack > 188, win 1444, options [nop,nop,TS val 715791 ecr 677134], length 0 > -- Blog: serverascode.com _______________________________________________ OpenStack-operators mailing list OpenStack-operators@lists.openstack.org http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators
