Hi Damon, Here is the data of /var/log/messages from my compute node.
(1) First I created a flat network and deployed a VM but I did not see the DHCPREQUEST or DHCPACK logs. The private IP was not assigned on the actual VM but it was seen on the controller against the VM. (2) Second, I created a vlan network with a dummy segmentation_id 60 and below logs are seen in messages log file. Even the private IP got assigned on the VM correctly. But this IP assignment happens only when my compute node iptables service is stopped. Log messages: Apr 30 02:26:45 imm-9-37-88-152 kernel: qbrd3ca0758-8f: port 2 (tapd3ca0758-8f) entering disabled state Apr 30 02:26:45 imm-9-37-88-152 kernel: device tapd3ca0758-8f left promiscuous mode Apr 30 02:26:45 imm-9-37-88-152 kernel: qbrd3ca0758-8f: port 2 (tapd3ca0758-8f) entering disabled state Apr 30 02:26:46 imm-9-37-88-152 kernel: qbrd3ca0758-8f: port 1 (qvbd3ca0758-8f) entering disabled state Apr 30 02:26:46 imm-9-37-88-152 kernel: (null): Dropping TSO features since no CSUM feature. Apr 30 02:26:46 imm-9-37-88-152 kernel: (null): Dropping TSO6 features since no CSUM feature. Apr 30 02:26:46 imm-9-37-88-152 ovs-vsctl: ovs|00001|vsctl|INFO|Called as /usr/bin/ovs-vsctl --timeout=120 del-port br-int qvod3ca0758-8f Apr 30 02:26:49 imm-9-37-88-152 dnsmasq[31049]: started, version 2.68 cachesize 150 Apr 30 02:26:49 imm-9-37-88-152 dnsmasq[31049]: compile time options: IPv6 GNU-getopt DBus no-i18n no-IDN DHCP DHCPv6 no-Lua TFTP no-conntrack ipset auth Apr 30 02:26:49 imm-9-37-88-152 dnsmasq[31049]: LOUD WARNING: listening on 60.60.60.200 may accept requests via interfaces other than tapdb330b1c-6c Apr 30 02:26:49 imm-9-37-88-152 dnsmasq[31049]: LOUD WARNING: use --bind-dynamic rather than --bind-interfaces to avoid DNS amplification attacks via these interface(s) Apr 30 02:26:49 imm-9-37-88-152 dnsmasq[31049]: warning: no upstream servers configured Apr 30 02:26:49 imm-9-37-88-152 dnsmasq-dhcp[31049]: DHCP, static leases only on 60.60.60.0, lease time 1d Apr 30 02:26:49 imm-9-37-88-152 dnsmasq-dhcp[31049]: DHCP, sockets bound exclusively to interface tapdb330b1c-6c Apr 30 02:26:49 imm-9-37-88-152 dnsmasq[31049]: read /var/lib/neutron/dhcp/0c4aa9c8-35b3-4509-859b-6cb2e74c623f/addn_hosts - 2 addresses Apr 30 02:26:49 imm-9-37-88-152 dnsmasq-dhcp[31049]: read /var/lib/neutron/dhcp/0c4aa9c8-35b3-4509-859b-6cb2e74c623f/host Apr 30 02:26:49 imm-9-37-88-152 dnsmasq-dhcp[31049]: read /var/lib/neutron/dhcp/0c4aa9c8-35b3-4509-859b-6cb2e74c623f/opts Apr 30 02:30:40 imm-9-37-88-152 dnsmasq[31049]: read /var/lib/neutron/dhcp/0c4aa9c8-35b3-4509-859b-6cb2e74c623f/addn_hosts - 3 addresses Apr 30 02:30:40 imm-9-37-88-152 dnsmasq-dhcp[31049]: read /var/lib/neutron/dhcp/0c4aa9c8-35b3-4509-859b-6cb2e74c623f/host Apr 30 02:30:40 imm-9-37-88-152 dnsmasq-dhcp[31049]: read /var/lib/neutron/dhcp/0c4aa9c8-35b3-4509-859b-6cb2e74c623f/opts Apr 30 02:30:42 imm-9-37-88-152 kernel: kvm: 31581: cpu0 unhandled rdmsr: 0x345 Apr 30 02:30:42 imm-9-37-88-152 kernel: kvm: 31581: cpu0 unhandled wrmsr: 0x680 data 0 Apr 30 02:30:42 imm-9-37-88-152 kernel: kvm: 31581: cpu0 unhandled wrmsr: 0x6c0 data 0 Apr 30 02:30:42 imm-9-37-88-152 kernel: kvm: 31581: cpu0 unhandled wrmsr: 0x681 data 0 Apr 30 02:30:42 imm-9-37-88-152 kernel: kvm: 31581: cpu0 unhandled wrmsr: 0x6c1 data 0 Apr 30 02:30:42 imm-9-37-88-152 kernel: kvm: 31581: cpu0 unhandled wrmsr: 0x682 data 0 Apr 30 02:30:42 imm-9-37-88-152 kernel: kvm: 31581: cpu0 unhandled wrmsr: 0x6c2 data 0 Apr 30 02:30:42 imm-9-37-88-152 kernel: kvm: 31581: cpu0 unhandled wrmsr: 0x683 data 0 Apr 30 02:30:42 imm-9-37-88-152 kernel: kvm: 31581: cpu0 unhandled wrmsr: 0x6c3 data 0 Apr 30 02:30:45 imm-9-37-88-152 kernel: qbr60d8754c-a9: Dropping TSO features since no CSUM feature. Apr 30 02:30:45 imm-9-37-88-152 kernel: qbr60d8754c-a9: Dropping TSO6 features since no CSUM feature. Apr 30 02:30:45 imm-9-37-88-152 NetworkManager[2172]: <warn> /sys/devices/virtual/net/qvo60d8754c-a9: couldn't determine device driver; ignoring... Apr 30 02:30:45 imm-9-37-88-152 kernel: ADDRCONF(NETDEV_UP): qvb60d8754c-a9: link is not ready Apr 30 02:30:45 imm-9-37-88-152 NetworkManager[2172]: <warn> /sys/devices/virtual/net/qvb60d8754c-a9: couldn't determine device driver; ignoring... Apr 30 02:30:45 imm-9-37-88-152 kernel: device qvb60d8754c-a9 entered promiscuous mode Apr 30 02:30:45 imm-9-37-88-152 kernel: ADDRCONF(NETDEV_CHANGE): qvb60d8754c-a9: link becomes ready Apr 30 02:30:45 imm-9-37-88-152 kernel: device qvo60d8754c-a9 entered promiscuous mode Apr 30 02:30:46 imm-9-37-88-152 kernel: (null): Dropping TSO features since no CSUM feature. Apr 30 02:30:46 imm-9-37-88-152 kernel: (null): Dropping TSO6 features since no CSUM feature. Apr 30 02:30:46 imm-9-37-88-152 kernel: 8021q: adding VLAN 0 to HW filter on device qbr60d8754c-a9 Apr 30 02:30:46 imm-9-37-88-152 kernel: qbr60d8754c-a9: port 1 (qvb60d8754c-a9) entering forwarding state Apr 30 02:30:46 imm-9-37-88-152 ovs-vsctl: ovs|00001|vsctl|INFO|Called as /usr/bin/ovs-vsctl --timeout=120 -- --if-exists del-port qvo60d8754c-a9 -- add-port br-int qvo60d8754c-a9 -- set Interface qvo60d8754c-a9 external-ids:iface-id=60d8754c-a9be-407b-838f-6d596aa24d03 external-ids:iface-status=active external-ids:attached-mac=fa:16:3e:4e:67:58 external-ids:vm-uuid=f7d2222b-c4d6-4577-b49c-6c57365697c1 Apr 30 02:30:46 imm-9-37-88-152 kernel: device tap60d8754c-a9 entered promiscuous mode Apr 30 02:30:46 imm-9-37-88-152 kernel: qbr60d8754c-a9: port 2 (tap60d8754c-a9) entering forwarding state Apr 30 02:30:46 imm-9-37-88-152 NetworkManager[2172]: <warn> /sys/devices/virtual/net/tap60d8754c-a9: couldn't determine device driver; ignoring... Apr 30 02:30:46 imm-9-37-88-152 qemu-kvm: Could not find keytab file: /etc/qemu/krb5.tab: No such file or directory Apr 30 02:30:47 imm-9-37-88-152 ovs-vsctl: ovs|00001|vsctl|INFO|Called as /usr/bin/ovs-vsctl --timeout=10 set Port qvo60d8754c-a9 tag=4 Apr 30 02:30:48 imm-9-37-88-152 kernel: __ratelimit: 26 callbacks suppressed Apr 30 02:30:48 imm-9-37-88-152 kernel: kvm: 31757: cpu0 unhandled rdmsr: 0x345 Apr 30 02:30:48 imm-9-37-88-152 kernel: kvm: 31757: cpu0 unhandled wrmsr: 0x680 data 0 Apr 30 02:30:48 imm-9-37-88-152 kernel: kvm: 31757: cpu0 unhandled wrmsr: 0x6c0 data 0 Apr 30 02:30:48 imm-9-37-88-152 kernel: kvm: 31757: cpu0 unhandled wrmsr: 0x681 data 0 Apr 30 02:30:48 imm-9-37-88-152 kernel: kvm: 31757: cpu0 unhandled wrmsr: 0x6c1 data 0 Apr 30 02:30:48 imm-9-37-88-152 kernel: kvm: 31757: cpu0 unhandled wrmsr: 0x682 data 0 Apr 30 02:30:48 imm-9-37-88-152 kernel: kvm: 31757: cpu0 unhandled wrmsr: 0x6c2 data 0 Apr 30 02:30:48 imm-9-37-88-152 kernel: kvm: 31757: cpu0 unhandled wrmsr: 0x683 data 0 Apr 30 02:30:48 imm-9-37-88-152 kernel: kvm: 31757: cpu0 unhandled wrmsr: 0x6c3 data 0 Apr 30 02:30:48 imm-9-37-88-152 kernel: kvm: 31757: cpu0 unhandled wrmsr: 0x684 data 0 Apr 30 02:30:54 imm-9-37-88-152 kernel: __ratelimit: 60 callbacks suppressed Apr 30 02:30:54 imm-9-37-88-152 kernel: kvm: 31715: cpu0 unhandled wrmsr: 0x391 data 2000000f Apr 30 02:31:00 imm-9-37-88-152 dnsmasq-dhcp[31049]: DHCPDISCOVER (tapdb330b1c-6c) fa:16:3e:4e:67:58 Apr 30 02:31:00 imm-9-37-88-152 dnsmasq-dhcp[31049]: DHCPOFFER (tapdb330b1c-6c) 60.60.60.207 fa:16:3e:4e:67:58 Apr 30 02:31:00 imm-9-37-88-152 dnsmasq-dhcp[31049]: DHCPREQUEST (tapdb330b1c-6c) 60.60.60.207 fa:16:3e:4e:67:58 Apr 30 02:31:00 imm-9-37-88-152 dnsmasq-dhcp[31049]: DHCPACK (tapdb330b1c-6c) 60.60.60.207 fa:16:3e:4e:67:58 host-60-60-60-207 Apr 30 02:31:18 imm-9-37-88-152 kernel: kvm: 31715: cpu0 unhandled wrmsr: 0x391 data 2000000f Apr 30 02:31:28 imm-9-37-88-152 dnsmasq-dhcp[31049]: DHCPREQUEST (tapdb330b1c-6c) 60.60.60.207 fa:16:3e:4e:67:58 Apr 30 02:31:28 imm-9-37-88-152 dnsmasq-dhcp[31049]: DHCPACK (tapdb330b1c-6c) 60.60.60.207 fa:16:3e:4e:67:58 host-60-60-60-207 Apr 30 02:31:53 imm-9-37-88-152 kernel: kvm: 31715: cpu0 unhandled wrmsr: 0x391 data 2000000f Apr 30 02:32:03 imm-9-37-88-152 dnsmasq-dhcp[31049]: DHCPREQUEST (tapdb330b1c-6c) 60.60.60.207 fa:16:3e:4e:67:58 Apr 30 02:32:03 imm-9-37-88-152 dnsmasq-dhcp[31049]: DHCPACK (tapdb330b1c-6c) 60.60.60.207 fa:16:3e:4e:67:58 host-60-60-60-207 Apr 30 02:32:34 imm-9-37-88-152 kernel: kvm: 31715: cpu0 unhandled wrmsr: 0x391 data 2000000f Apr 30 02:32:44 imm-9-37-88-152 dnsmasq-dhcp[31049]: DHCPREQUEST (tapdb330b1c-6c) 60.60.60.207 fa:16:3e:4e:67:58 Apr 30 02:32:44 imm-9-37-88-152 dnsmasq-dhcp[31049]: DHCPACK (tapdb330b1c-6c) 60.60.60.207 fa:16:3e:4e:67:58 host-60-60-60-207 Apr 30 02:32:57 imm-9-37-88-152 kernel: kvm: 31715: cpu0 unhandled wrmsr: 0x391 data 2000000f Apr 30 02:33:04 imm-9-37-88-152 dnsmasq-dhcp[31049]: DHCPREQUEST (tapdb330b1c-6c) 60.60.60.207 fa:16:3e:4e:67:58 Apr 30 02:33:04 imm-9-37-88-152 dnsmasq-dhcp[31049]: DHCPACK (tapdb330b1c-6c) 60.60.60.207 fa:16:3e:4e:67:58 host-60-60-60-207 Apr 30 02:33:20 imm-9-37-88-152 kernel: kvm: 31715: cpu0 unhandled wrmsr: 0x391 data 2000000f Apr 30 02:33:28 imm-9-37-88-152 dnsmasq-dhcp[31049]: DHCPREQUEST (tapdb330b1c-6c) 60.60.60.207 fa:16:3e:4e:67:58 Apr 30 02:33:28 imm-9-37-88-152 dnsmasq-dhcp[31049]: DHCPACK (tapdb330b1c-6c) 60.60.60.207 fa:16:3e:4e:67:58 host-60-60-60-207 Apr 30 02:33:48 imm-9-37-88-152 kernel: kvm: 31715: cpu0 unhandled wrmsr: 0x391 data 2000000f Apr 30 02:33:55 imm-9-37-88-152 dnsmasq-dhcp[31049]: DHCPREQUEST (tapdb330b1c-6c) 60.60.60.207 fa:16:3e:4e:67:58 Apr 30 02:33:55 imm-9-37-88-152 dnsmasq-dhcp[31049]: DHCPACK (tapdb330b1c-6c) 60.60.60.207 fa:16:3e:4e:67:58 host-60-60-60-207 Apr 30 02:34:30 imm-9-37-88-152 kernel: kvm: 31715: cpu0 unhandled wrmsr: 0x391 data 2000000f Apr 30 02:35:09 imm-9-37-88-152 dnsmasq-dhcp[31049]: DHCPREQUEST (tapdb330b1c-6c) 60.60.60.207 fa:16:3e:4e:67:58 Apr 30 02:35:09 imm-9-37-88-152 dnsmasq-dhcp[31049]: DHCPACK (tapdb330b1c-6c) 60.60.60.207 fa:16:3e:4e:67:58 host-60-60-60-207 After my exercise with vlan, I created a external network of type local and using router I assigned a public IP to the VM which was created using private VLAN network. I was only able to ping the public IP from controller but not from compute. I tried to ping an external IP from the VM but it failed. With VLAN network I am able to proceed a little but with flat network its still blocked. I want to create a VM with private flat network and then assign the public IP using external network for providing internet access to the VM. Additional info: (1) Compute node has RHEL 6.5 KVM (2) The VM is deployed using Centos 6.5 image. (3) The controller is hosted on RHEL 6.5 Regards, Akash From: Damon Wang <damon.dev...@gmail.com> To: Akash Gunjal/India/IBM@IBMIN, Cc: "openstack@lists.openstack.org" <openstack@lists.openstack.org> Date: 04/30/2014 06:06 AM Subject: Re: [Openstack] DHCP configuration with openvSwitch Hi Akash, Can you paste your log of /etc/message, normally, you'll see something like this: "Apr 27 09:21:48 gd60 dnsmasq-dhcp[8872]: DHCPREQUEST(tapce4121ff-d6) 192.168.220.6 fa:16:3e:21:1f:58 "Apr 27 09:21:48 gd60 dnsmasq-dhcp[8872]: DHCPACK(tapce4121ff-d6) 192.168.220.6 fa:16:3e:21:1f:58 host-192-168-220-6 "Apr 27 21:21:48 gd60 dnsmasq-dhcp[8872]: DHCPREQUEST(tapce4121ff-d6) 192.168.220.6 fa:16:3e:21:1f:58 "Apr 27 21:21:48 gd60 dnsmasq-dhcp[8872]: DHCPACK(tapce4121ff-d6) 192.168.220.6 fa:16:3e:21:1f:58 host-192-168-220-6" Besides, try to check iptables, you can use raw table to trace data path in iptables. Hope it helps, Damon 2014-04-30 2:05 GMT+08:00 Akash Gunjal <akgun...@in.ibm.com>: Hello, I am using icehouse version for doing my network setup using openvSwitch agent with ML2 plugin. I want to configure flat network with DHCP server so the IP gets assigned to the guest VMs after deployment. As part of this I have started the dhcp and openvSwitch agents on my compute node and created a flat private network and deployed the virtual machine on the compute. The VM gets deployed but it fails to get the IP from the controller even though I see the IP assigned on the controller for that VM. I see an error message on the VM boot up stating that its cannot connect to 169.254.169.254 I see the dnsmasq process running on my compute node. Please point me to the error here and if my dhcp setup is correct. Regards, Akash _______________________________________________ Mailing list: http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack Post to : 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 Unsubscribe : http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
