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    <div class="moz-cite-prefix">Your route is correct, 10.5.5.0/24 is
      resolved thru qr-XXXX by default.<br>
      I haven't had time to look at tcpdumps carefully, but it seems
      your network node is receiving the ARP query and replying.<br>
      I would suggest to monitor all interfaces on both compute node and
      network node using the tcpdump '-i any' flag to make sure both ARP
      request and reply are correctly routed.<br>
      <br>
      If by assigning IP addresses to the VMs, you can see traffic
      coming back and forth the GRE tunnels, I would say the L2 agents
      are working correctly. If this is only a DHCP lease issue, I would
      try to delete/recreate br-int and restart all quantum-*-agents on
      the network node.<br>
      <br>
      Sorry, can't help further :-(<br>
      <br>
      -Sylvain<br>
      <br>
      Le 06/03/2013 18:45, The King in Yellow a écrit :<br>
    </div>
    <blockquote
cite="mid:CABDznXuEyyZK7gzVqtW8PDK-tT9WfgOGco11oJvUSW+rVN20Sg@mail.gmail.com"
      type="cite">
      <div dir="ltr">
        <div class="gmail_extra"><br>
          <div class="gmail_quote">On Wed, Mar 6, 2013 at 10:15 AM,
            Sylvain Bauza <span dir="ltr"><<a moz-do-not-send="true"
                href="mailto:sylvain.bauza@digimind.com" target="_blank">sylvain.bauza@digimind.com</a>></span>
            wrote:<br>
            <blockquote class="gmail_quote" style="margin:0px 0px 0px
              0.8ex;border-left:1px solid
              rgb(204,204,204);padding-left:1ex">Le 05/03/2013 18:14,
              The King in Yellow a écrit :
              <div class="im"><br>
                <blockquote class="gmail_quote" style="margin:0px 0px
                  0px 0.8ex;border-left:1px solid
                  rgb(204,204,204);padding-left:1ex">
                  <br>
                  <br>
                  I'm not clear on what the interfaces are, but
                  q-9f9041ce-65 is 10.5.5.1 on the network node, so he
                  seems to be seeing the traffic.  tap45ffdc5f-da is
                  listed as 10.5.5.2, and I have no idea what function
                  that is performing.<br>
                </blockquote>
                <br>
                <br>
              </div>
              qr-XXXXX is the internal router IP interface (as you
              correctly guessed, ie. 10.5.5.1) and bound to br-int.<br>
              tap-XXXX is the DHCP server IP interface (ie. 10.5.5.2),
              also bound to br-int.<br>
              <br>
              'brctl show' gives you the output.<br>
              <br>
              Could you please provide us "route -n" on the network
              node" ?<br>
            </blockquote>
            <div><br>
              <span style="font-family:courier new,monospace">os@os-network:~$
                route -n<br>
                Kernel IP routing table<br>
                Destination     Gateway         Genmask         Flags
                Metric Ref    Use Iface<br>
                0.0.0.0         10.42.36.1      0.0.0.0         UG   
                0      0        0 qg-28108125-11<br>
                0.0.0.0         10.42.38.1      0.0.0.0         UG   
                0      0        0 eth3<br>
                10.5.5.0        0.0.0.0         255.255.255.0   U    
                0      0        0 tap45ffdc5f-da<br>
                10.5.5.0        0.0.0.0         255.255.255.0   U    
                0      0        0 qr-9f9041ce-65<br>
                10.10.10.0      0.0.0.0         255.255.255.0   U    
                0      0        0 eth1<br>
                10.42.36.0      0.0.0.0         255.255.254.0   U    
                0      0        0 qg-28108125-11<br>
                10.42.38.0      0.0.0.0         255.255.254.0   U    
                1      0        0 eth3<br>
                169.254.0.0     0.0.0.0         255.255.0.0     U    
                1000   0        0 eth0<br>
                192.168.0.0     0.0.0.0         255.255.255.0   U    
                0      0        0 eth0<br>
                os@os-network:~$  <br>
              </span><br>
            </div>
            <blockquote class="gmail_quote" style="margin:0px 0px 0px
              0.8ex;border-left:1px solid
              rgb(204,204,204);padding-left:1ex">
              Could you also make sure (with 'ovs-vsctl show') that port
              'qr-XXXX' and 'tapXXXX' do have the same tag number as for
              VMs ? (should be tag:1)<br>
              <br>
            </blockquote>
            <div><br>
              They are:<br>
              <br>
              <span style="font-family:courier new,monospace">root@os-network:~#
                ovs-vsctl show<br>
                e232f8c8-1cb8-4cf5-9de5-49f41e59fd38<br>
                    Bridge br-tun<br>
                        Port br-tun<br>
                            Interface br-tun<br>
                                type: internal<br>
                        Port patch-int<br>
                            Interface patch-int<br>
                                type: patch<br>
                                options: {peer=patch-tun}<br>
                        Port "gre-2"<br>
                            Interface "gre-2"<br>
                                type: gre<br>
                                options: {in_key=flow, out_key=flow,
                remote_ip="10.10.10.2"}<br>
                    Bridge br-int<br>
                        Port br-int<br>
                            Interface br-int<br>
                                type: internal<br>
                        Port patch-tun<br>
                            Interface patch-tun<br>
                                type: patch<br>
                                options: {peer=patch-int}<br>
                        Port "qr-9f9041ce-65"<br>
                            tag: 1<br>
                            Interface "qr-9f9041ce-65"<br>
                                type: internal<br>
                        Port "tap45ffdc5f-da"<br>
                            tag: 1<br>
                            Interface "tap45ffdc5f-da"<br>
                                type: internal<br>
                    Bridge br-ex<br>
                        Port "qg-28108125-11"<br>
                            Interface "qg-28108125-11"<br>
                                type: internal<br>
                        Port "eth2"<br>
                            Interface "eth2"<br>
                        Port br-ex<br>
                            Interface br-ex<br>
                                type: internal<br>
                    ovs_version: "1.4.0+build0"<br>
                root@os-network:~#  </span><br>
            </div>
          </div>
          <br>
        </div>
      </div>
    </blockquote>
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