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Sorry, now I've got a instance running and the floating IP. From the external network I can ping the instance, but this one can't ping internet neither.

Now, the qvo from the Compute node.

[root@hades ~]# brctl show

bridge name bridge id STP enabled interfaces qbr5c96ddfc-71 8000.12bc2d1af03a no qvb5c96ddfc-71 tap5c96ddfc-71 virbr0 8000.5254004b4269 yes virbr0-nic [root@hades ~]# ovs-vsctl show a8dbd826-84b0-4121-8b09-1b915fde800d Bridge br-int Port patch-tun Interface patch-tun type: patch options: {peer=patch-int} Port "qvo5c96ddfc-71" tag: 1 Interface "qvo5c96ddfc-71" Port br-int Interface br-int type: internal Bridge br-tun Port br-tun Interface br-tun type: internal Port patch-int Interface patch-int type: patch options: {peer=patch-tun} Port "gre-c0a80b03" Interface "gre-c0a80b03" type: gre options: {in_key=flow, local_ip="192.168.11.4", out_key=flow, remote_ip="192.168.11.3"} ovs_version: "1.11.0"

Sorry, now I've got a instance running and the floating IP. From the external network I can ping the instance, but this one can't ping internet neither.

Now, the qvo from the Compute node.

 [root@hades ~]# brctl show

bridge name bridge id STP enabled interfaces qbr5c96ddfc-71 8000.12bc2d1af03a no qvb5c96ddfc-71 tap5c96ddfc-71 virbr0 8000.5254004b4269 yes virbr0-nic [root@hades ~]# ovs-vsctl show a8dbd826-84b0-4121-8b09-1b915fde800d Bridge br-int Port patch-tun Interface patch-tun type: patch options: {peer=patch-int} Port "qvo5c96ddfc-71" tag: 1 Interface "qvo5c96ddfc-71" Port br-int Interface br-int type: internal Bridge br-tun Port br-tun Interface br-tun type: internal Port patch-int Interface patch-int type: patch options: {peer=patch-tun} Port "gre-c0a80b03" Interface "gre-c0a80b03" type: gre options: {in_key=flow, local_ip="192.168.11.4", out_key=flow, remote_ip="192.168.11.3"} ovs_version: "1.11.0"

"1.11.0"

Sorry, now I've got a instance running and the floating IP. From the external network I can ping the instance, but this one can't ping internet neither.

Now, the qvo from the Compute node.

    [root@hades ~]# brctl show
bridge name bridge id       STP enabled interfaces
qbr5c96ddfc-71      8000.12bc2d1af03a   no      qvb5c96ddfc-71
                            tap5c96ddfc-71
virbr0      8000.5254004b4269   yes     virbr0-nic
[root@hades ~]# ovs-vsctl show
a8dbd826-84b0-4121-8b09-1b915fde800d
    Bridge br-int
        Port patch-tun
            Interface patch-tun
                type: patch
                options: {peer=patch-int}
        Port "qvo5c96ddfc-71"
            tag: 1
            Interface "qvo5c96ddfc-71"
        Port br-int
            Interface br-int
                type: internal
    Bridge br-tun
        Port br-tun
            Interface br-tun
                type: internal
        Port patch-int
            Interface patch-int
                type: patch
                options: {peer=patch-tun}
        Port "gre-c0a80b03"
            Interface "gre-c0a80b03"
                type: gre
                options: {in_key=flow, local_ip="192.168.11.4", out_key=flow, remote_ip="192.168.11.3"}
    ovs_version: "1.11.0"

EDITED (in response to dbaxps):


$ ifconfig
eth0      Link encap:Ethernet  HWaddr FA:16:3E:A6:53:FD  
          inet addr:192.168.1.3  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::f816:3eff:fea6:53fd/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:531 errors:0 dropped:0 overruns:0 frame:0
          TX packets:476 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:49246 (48.0 KiB)  TX bytes:48729 (47.5 KiB)

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:12 errors:0 dropped:0 overruns:0 frame:0
          TX packets:12 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:1008 (1008.0 B)  TX bytes:1008 (1008.0 B)

$ curl http://169.254.169.254/latest/meta-data/instance-id
i-00000001$ curl http://169.254.169.254/latest/meta-data/local-ipv4
192.168.1.3$ curl http://lxer.com/
curl: (6) Couldn't resolve host 'lxer.com'

Now, if I do a ping 8.8.8.8 I get response... So maybe is a dns problem? Where should I change it?

And, I don't know if has something to do with the problem, but the router interface connected to the External network has DOWN status...

IP fija
    Dirección IP: 10.51.1.125, ID de subred f952c793-47c2-40bd-8881-3aecd6b4594a
**Status
    DOWN
Admin Status
    UP**
Dispositivo asociado
    Propietario del dispositivo: network:router_gateway
    ID del dispositivo: 7c883489-6397-4adc-acdb-1ab6c1fe74ce

Sorry, now I've got a instance running and the floating IP. From the external network I can ping the instance, but this one can't ping internet neither.

Now, the qvo from the Compute node.

    [root@hades ~]# brctl show
bridge name bridge id       STP enabled interfaces
qbr5c96ddfc-71      8000.12bc2d1af03a   no      qvb5c96ddfc-71
                            tap5c96ddfc-71
virbr0      8000.5254004b4269   yes     virbr0-nic
[root@hades ~]# ovs-vsctl show
a8dbd826-84b0-4121-8b09-1b915fde800d
    Bridge br-int
        Port patch-tun
            Interface patch-tun
                type: patch
                options: {peer=patch-int}
        Port "qvo5c96ddfc-71"
            tag: 1
            Interface "qvo5c96ddfc-71"
        Port br-int
            Interface br-int
                type: internal
    Bridge br-tun
        Port br-tun
            Interface br-tun
                type: internal
        Port patch-int
            Interface patch-int
                type: patch
                options: {peer=patch-tun}
        Port "gre-c0a80b03"
            Interface "gre-c0a80b03"
                type: gre
                options: {in_key=flow, local_ip="192.168.11.4", out_key=flow, remote_ip="192.168.11.3"}
    ovs_version: "1.11.0"

EDITED (in response to dbaxps):


$ ifconfig
eth0      Link encap:Ethernet  HWaddr FA:16:3E:A6:53:FD  
          inet addr:192.168.1.3  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::f816:3eff:fea6:53fd/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:531 errors:0 dropped:0 overruns:0 frame:0
          TX packets:476 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:49246 (48.0 KiB)  TX bytes:48729 (47.5 KiB)

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:12 errors:0 dropped:0 overruns:0 frame:0
          TX packets:12 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:1008 (1008.0 B)  TX bytes:1008 (1008.0 B)

$ curl http://169.254.169.254/latest/meta-data/instance-id
i-00000001$ curl http://169.254.169.254/latest/meta-data/local-ipv4
192.168.1.3$ curl http://lxer.com/
curl: (6) Couldn't resolve host 'lxer.com'

Now, if I do a ping 8.8.8.8 I get response... So maybe is a dns problem? Where should I change it?

And, I don't know if has something to do with the problem, but the router interface connected to the External network has DOWN status...

IP fija
    Dirección IP: 10.51.1.125, ID de subred f952c793-47c2-40bd-8881-3aecd6b4594a
**Status
    DOWN
Admin Status
    UP**
Dispositivo asociado
    Propietario del dispositivo: network:router_gateway
    ID del dispositivo: 7c883489-6397-4adc-acdb-1ab6c1fe74ce

And same thing with the external network ports...

image description

Sorry, now I've got a instance running and the floating IP. From the external network I can ping the instance, but this one can't ping internet neither.

Now, the qvo from the Compute node.

    [root@hades ~]# brctl show
bridge name bridge id       STP enabled interfaces
qbr5c96ddfc-71      8000.12bc2d1af03a   no      qvb5c96ddfc-71
                            tap5c96ddfc-71
virbr0      8000.5254004b4269   yes     virbr0-nic
[root@hades ~]# ovs-vsctl show
a8dbd826-84b0-4121-8b09-1b915fde800d
    Bridge br-int
        Port patch-tun
            Interface patch-tun
                type: patch
                options: {peer=patch-int}
        Port "qvo5c96ddfc-71"
            tag: 1
            Interface "qvo5c96ddfc-71"
        Port br-int
            Interface br-int
                type: internal
    Bridge br-tun
        Port br-tun
            Interface br-tun
                type: internal
        Port patch-int
            Interface patch-int
                type: patch
                options: {peer=patch-tun}
        Port "gre-c0a80b03"
            Interface "gre-c0a80b03"
                type: gre
                options: {in_key=flow, local_ip="192.168.11.4", out_key=flow, remote_ip="192.168.11.3"}
    ovs_version: "1.11.0"

EDITED (in response to dbaxps):


$ ifconfig
eth0      Link encap:Ethernet  HWaddr FA:16:3E:A6:53:FD  
          inet addr:192.168.1.3  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::f816:3eff:fea6:53fd/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:531 errors:0 dropped:0 overruns:0 frame:0
          TX packets:476 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:49246 (48.0 KiB)  TX bytes:48729 (47.5 KiB)

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:12 errors:0 dropped:0 overruns:0 frame:0
          TX packets:12 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:1008 (1008.0 B)  TX bytes:1008 (1008.0 B)

$ curl http://169.254.169.254/latest/meta-data/instance-id
i-00000001$ curl http://169.254.169.254/latest/meta-data/local-ipv4
192.168.1.3$ curl http://lxer.com/
curl: (6) Couldn't resolve host 'lxer.com'

Now, if I do a ping 8.8.8.8 I get response... So maybe is a dns problem? Where should I change it?

And, I don't know if has something to do with the problem, but the router interface connected to the External network has DOWN status...

IP fija
    Dirección IP: 10.51.1.125, ID de subred f952c793-47c2-40bd-8881-3aecd6b4594a
**Status
    DOWN
Admin Status
    UP**
Dispositivo asociado
    Propietario del dispositivo: network:router_gateway
    ID del dispositivo: 7c883489-6397-4adc-acdb-1ab6c1fe74ce

And same thing with the external network ports...

image description

EDITED 2: ---------------------- NETWORK DESIGN ----------------------------

  • EXTERNAL NETWORK (eth0): 10.51.1.0/24 (GATEWAY 10.51.1.1)
  • MANAGEMENT NETWORK (eth1): 192.168.10.0/24
  • INSTANCES NETWORK (eth0:1): 192.168.11.0/24

image description

NETWORK NODE:

# cat /etc/sysconfig/network-scripts/ifcfg-eth*

DEVICE="eth0"
ONBOOT="yes"
TYPE="Ethernet"
NAME=Externa
NM_CONTROLLED=no
BOOTPROTO=dhcp

DEVICE="eth1"
ONBOOT="yes"
IPADDR=192.168.10.3
PREFIX=24
NAME=Interna
#GATEWAY=192.168.10.1

DEVICE="eth1:0"
ONBOOT="yes"
IPADDR=192.168.11.3
PREFIX=24
NAME=Tunel

# ifconfig

br-ex     Link encap:Ethernet  HWaddr 00:1C:C0:06:74:28  
          inet6 addr: fe80::74e9:c9ff:fe7f:d2b2/64 Scope:Link
          UP BROADCAST RUNNING  MTU:1500  Metric:1
          RX packets:88219 errors:0 dropped:0 overruns:0 frame:0
          TX packets:7 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:8939287 (8.5 MiB)  TX bytes:510 (510.0 b)

br-int    Link encap:Ethernet  HWaddr AE:C3:9B:32:C4:45  
          inet6 addr: fe80::1c0a:ddff:fedd:919f/64 Scope:Link
          UP BROADCAST RUNNING  MTU:1500  Metric:1
          RX packets:107 errors:0 dropped:0 overruns:0 frame:0
          TX packets:6 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:9616 (9.3 KiB)  TX bytes:468 (468.0 b)

br-tun    Link encap:Ethernet  HWaddr 12:7A:34:4A:82:40  
          inet6 addr: fe80::8c77:2aff:feec:c576/64 Scope:Link
          UP BROADCAST RUNNING  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:6 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:0 (0.0 b)  TX bytes:468 (468.0 b)

eth0      Link encap:Ethernet  HWaddr 00:1C:C0:06:74:28  
          inet addr:10.51.1.219  Bcast:10.51.1.255  Mask:255.255.255.0
          inet6 addr: fe80::21c:c0ff:fe06:7428/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:120373 errors:0 dropped:0 overruns:0 frame:0
          TX packets:33736 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:11003593 (10.4 MiB)  TX bytes:1640708 (1.5 MiB)
          Interrupt:20 Memory:92200000-92220000 

eth1      Link encap:Ethernet  HWaddr 00:48:54:4C:24:40  
          inet addr:192.168.10.3  Bcast:192.168.10.255  Mask:255.255.255.0
          inet6 addr: fe80::248:54ff:fe4c:2440/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:54066 errors:0 dropped:0 overruns:0 frame:0
          TX packets:62535 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:6601939 (6.2 MiB)  TX bytes:14655277 (13.9 MiB)
          Interrupt:21 Base address:0xc800 

eth1:0    Link encap:Ethernet  HWaddr 00:48:54:4C:24:40  
          inet addr:192.168.11.3  Bcast:192.168.11.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          Interrupt:21 Base address:0xc800 

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:15959 errors:0 dropped:0 overruns:0 frame:0
          TX packets:15959 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:2118286 (2.0 MiB)  TX bytes:2118286 (2.0 MiB)

# route -n

Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
10.51.1.0       0.0.0.0         255.255.255.0   U     0      0        0 eth0
192.168.11.0    0.0.0.0         255.255.255.0   U     0      0        0 eth1
192.168.10.0    0.0.0.0         255.255.255.0   U     0      0        0 eth1
169.254.0.0     0.0.0.0         255.255.0.0     U     1002   0        0 eth0
169.254.0.0     0.0.0.0         255.255.0.0     U     1003   0        0 eth1
0.0.0.0         10.51.1.1       0.0.0.0         UG    0      0        0 eth0

#ovs-vsctl show

63a6abbc-87ad-4064-9ff1-31d581558fc3
    Bridge br-int
        Port "qr-bf0abcc0-b2"
            tag: 1
            Interface "qr-bf0abcc0-b2"
                type: internal
        Port "tape0450457-1c"
            tag: 1
            Interface "tape0450457-1c"
                type: internal
        Port br-int
            Interface br-int
                type: internal
        Port patch-tun
            Interface patch-tun
                type: patch
                options: {peer=patch-int}
    Bridge br-tun
        Port patch-int
            Interface patch-int
                type: patch
                options: {peer=patch-tun}
        Port br-tun
            Interface br-tun
                type: internal
        Port "gre-c0a80b04"
            Interface "gre-c0a80b04"
                type: gre
                options: {in_key=flow, local_ip="192.168.11.3", out_key=flow, remote_ip="192.168.11.4"}
    Bridge br-ex
        Port "eth0"
            Interface "eth0"
        Port br-ex
            Interface br-ex
                type: internal
        Port "qg-422ba938-ec"
            Interface "qg-422ba938-ec"
                type: internal
    ovs_version: "1.11.0"

# ping www.google.es
^C

# ping 8.8.8.8

PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data.
From 10.51.1.219 icmp_seq=1 Destination Host Unreachable
From 10.51.1.219 icmp_seq=2 Destination Host Unreachable
From 10.51.1.219 icmp_seq=3 Destination Host Unreachable
^C
--- 8.8.8.8 ping statistics ---
4 packets transmitted, 0 received, +3 errors, 100% packet loss, time 3694ms
pipe 3

# traceroute 8.8.8.8

traceroute to 8.8.8.8 (8.8.8.8), 30 hops max, 60 byte packets
 1  10.51.1.219 (10.51.1.219)  3000.433 ms !H  3000.422 ms !H *

COMPUTE NODE (Internet acess works):

Same config but 192.168.10/11.4

# ifconfig 

br-int    Link encap:Ethernet  HWaddr 0E:97:A5:52:05:40  
          inet6 addr: fe80::d4be:8fff:fe49:48ea/64 Scope:Link
          UP BROADCAST RUNNING  MTU:1500  Metric:1
          RX packets:77 errors:0 dropped:0 overruns:0 frame:0
          TX packets:6 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:7236 (7.0 KiB)  TX bytes:468 (468.0 b)

br-tun    Link encap:Ethernet  HWaddr 7E:E0:A2:D7:33:4E  
          inet6 addr: fe80::3cf8:d6ff:fee2:5ce/64 Scope:Link
          UP BROADCAST RUNNING  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:6 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:0 (0.0 b)  TX bytes:468 (468.0 b)

eth0      Link encap:Ethernet  HWaddr 70:71:BC:94:97:F8  
          inet addr:10.51.1.235  Bcast:10.51.1.255  Mask:255.255.255.0
          inet6 addr: fe80::7271:bcff:fe94:97f8/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:88190 errors:0 dropped:0 overruns:0 frame:0
          TX packets:3282 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:8016008 (7.6 MiB)  TX bytes:233711 (228.2 KiB)
          Interrupt:20 Memory:fb200000-fb220000 

eth1      Link encap:Ethernet  HWaddr 00:01:02:B0:EB:D3  
          inet addr:192.168.10.4  Bcast:192.168.10.255  Mask:255.255.255.0
          inet6 addr: fe80::201:2ff:feb0:ebd3/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:82497 errors:0 dropped:0 overruns:1 frame:0
          TX packets:79857 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:27603830 (26.3 MiB)  TX bytes:19675514 (18.7 MiB)
          Interrupt:21 Base address:0xe000 

eth1:0    Link encap:Ethernet  HWaddr 00:01:02:B0:EB:D3  
          inet addr:192.168.11.4  Bcast:192.168.11.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          Interrupt:21 Base address:0xe000 

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:27 errors:0 dropped:0 overruns:0 frame:0
          TX packets:27 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:2312 (2.2 KiB)  TX bytes:2312 (2.2 KiB)

qbr5c96ddfc-71 Link encap:Ethernet  HWaddr 12:BC:2D:1A:F0:3A  
          inet6 addr: fe80::9892:9aff:fea6:9648/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:71 errors:0 dropped:0 overruns:0 frame:0
          TX packets:6 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:5580 (5.4 KiB)  TX bytes:468 (468.0 b)

qvb5c96ddfc-71 Link encap:Ethernet  HWaddr 12:BC:2D:1A:F0:3A  
          inet6 addr: fe80::10bc:2dff:fe1a:f03a/64 Scope:Link
          UP BROADCAST RUNNING PROMISC MULTICAST  MTU:1500  Metric:1
          RX packets:2509 errors:0 dropped:0 overruns:0 frame:0
          TX packets:2031 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:302940 (295.8 KiB)  TX bytes:356538 (348.1 KiB)

qvo5c96ddfc-71 Link encap:Ethernet  HWaddr 3A:68:55:80:A8:22  
          inet6 addr: fe80::3868:55ff:fe80:a822/64 Scope:Link
          UP BROADCAST RUNNING PROMISC MULTICAST  MTU:1500  Metric:1
          RX packets:2031 errors:0 dropped:0 overruns:0 frame:0
          TX packets:2509 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:356538 (348.1 KiB)  TX bytes:302940 (295.8 KiB)

tap5c96ddfc-71 Link encap:Ethernet  HWaddr FE:16:3E:A6:53:FD  
          inet6 addr: fe80::fc16:3eff:fea6:53fd/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:2021 errors:0 dropped:0 overruns:0 frame:0
          TX packets:2505 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:500 
          RX bytes:355782 (347.4 KiB)  TX bytes:302628 (295.5 KiB)

virbr0    Link encap:Ethernet  HWaddr 52:54:00:4B:42:69  
          inet addr:192.168.122.1  Bcast:192.168.122.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)

# route -n

Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
10.51.1.0       0.0.0.0         255.255.255.0   U     0      0        0 eth0
192.168.11.0    0.0.0.0         255.255.255.0   U     0      0        0 eth1
192.168.10.0    0.0.0.0         255.255.255.0   U     0      0        0 eth1
192.168.122.0   0.0.0.0         255.255.255.0   U     0      0        0 virbr0
169.254.0.0     0.0.0.0         255.255.0.0     U     1002   0        0 eth0
169.254.0.0     0.0.0.0         255.255.0.0     U     1003   0        0 eth1
0.0.0.0         10.51.1.1       0.0.0.0         UG    0      0        0 eth0

# ovs-vsctl show

a8dbd826-84b0-4121-8b09-1b915fde800d
    Bridge br-int
        Port patch-tun
            Interface patch-tun
                type: patch
                options: {peer=patch-int}
        Port "qvo5c96ddfc-71"
            tag: 1
            Interface "qvo5c96ddfc-71"
        Port br-int
            Interface br-int
                type: internal
    Bridge br-tun
        Port br-tun
            Interface br-tun
                type: internal
        Port patch-int
            Interface patch-int
                type: patch
                options: {peer=patch-tun}
        Port "gre-c0a80b03"
            Interface "gre-c0a80b03"
                type: gre
                options: {in_key=flow, local_ip="192.168.11.4", out_key=flow, remote_ip="192.168.11.3"}
    ovs_version: "1.11.0"

# brctl show

bridge name bridge id       STP enabled interfaces
qbr5c96ddfc-71      8000.12bc2d1af03a   no      qvb5c96ddfc-71
                            tap5c96ddfc-71
virbr0      8000.5254004b4269   yes     virbr0-nic

# ping www.google.es

PING www.google.es (173.194.34.216) 56(84) bytes of data.
64 bytes from mad01s08-in-f24.1e100.net (173.194.34.216): icmp_seq=1 ttl=53 time=13.9 ms
64 bytes from mad01s08-in-f24.1e100.net (173.194.34.216): icmp_seq=2 ttl=53 time=13.6 ms

CONTROLLER NODE (Internet acess works):

Same config but 192.168.10/11.2

# ifconfig

eth0      Link encap:Ethernet  HWaddr 00:19:D1:8F:FC:54  
          inet addr:10.51.1.226  Bcast:10.51.1.255  Mask:255.255.255.0
          inet6 addr: fe80::219:d1ff:fe8f:fc54/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:238765 errors:0 dropped:0 overruns:0 frame:0
          TX packets:335064 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:62791355 (59.8 MiB)  TX bytes:266564128 (254.2 MiB)
          Interrupt:20 Memory:e3200000-e3220000 

eth1      Link encap:Ethernet  HWaddr 00:0E:0C:6B:D8:4A  
          inet addr:192.168.10.2  Bcast:192.168.10.255  Mask:255.255.255.0
          inet6 addr: fe80::20e:cff:fe6b:d84a/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:117990 errors:0 dropped:0 overruns:0 frame:0
          TX packets:108354 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:29130641 (27.7 MiB)  TX bytes:16538498 (15.7 MiB)

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:1161165 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1161165 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:612535582 (584.1 MiB)  TX bytes:612535582 (584.1 MiB)

# route -n

Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
10.51.1.0       0.0.0.0         255.255.255.0   U     0      0        0 eth0
192.168.10.0    0.0.0.0         255.255.255.0   U     0      0        0 eth1
169.254.0.0     0.0.0.0         255.255.0.0     U     1002   0        0 eth0
169.254.0.0     0.0.0.0         255.255.0.0     U     1003   0        0 eth1
0.0.0.0         10.51.1.1       0.0.0.0         UG    0      0        0 eth0

# ping www.google.es

PING www.google.es (173.194.34.223) 56(84) bytes of data.
64 bytes from mad01s08-in-f31.1e100.net (173.194.34.223): icmp_seq=1 ttl=53 time=14.4 ms
64 bytes from mad01s08-in-f31.1e100.net (173.194.34.223): icmp_seq=2 ttl=53 time=13.9 ms

Sorry, now I've got a instance running and the floating IP. From the external network I can ping the instance, but this one can't ping internet neither.

Now, the qvo from the Compute node.

    [root@hades ~]# brctl show
bridge name bridge id       STP enabled interfaces
qbr5c96ddfc-71      8000.12bc2d1af03a   no      qvb5c96ddfc-71
                            tap5c96ddfc-71
virbr0      8000.5254004b4269   yes     virbr0-nic
[root@hades ~]# ovs-vsctl show
a8dbd826-84b0-4121-8b09-1b915fde800d
    Bridge br-int
        Port patch-tun
            Interface patch-tun
                type: patch
                options: {peer=patch-int}
        Port "qvo5c96ddfc-71"
            tag: 1
            Interface "qvo5c96ddfc-71"
        Port br-int
            Interface br-int
                type: internal
    Bridge br-tun
        Port br-tun
            Interface br-tun
                type: internal
        Port patch-int
            Interface patch-int
                type: patch
                options: {peer=patch-tun}
        Port "gre-c0a80b03"
            Interface "gre-c0a80b03"
                type: gre
                options: {in_key=flow, local_ip="192.168.11.4", out_key=flow, remote_ip="192.168.11.3"}
    ovs_version: "1.11.0"

EDITED (in response to dbaxps):


$ ifconfig
eth0      Link encap:Ethernet  HWaddr FA:16:3E:A6:53:FD  
          inet addr:192.168.1.3  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::f816:3eff:fea6:53fd/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:531 errors:0 dropped:0 overruns:0 frame:0
          TX packets:476 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:49246 (48.0 KiB)  TX bytes:48729 (47.5 KiB)

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:12 errors:0 dropped:0 overruns:0 frame:0
          TX packets:12 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:1008 (1008.0 B)  TX bytes:1008 (1008.0 B)

$ curl http://169.254.169.254/latest/meta-data/instance-id
i-00000001$ curl http://169.254.169.254/latest/meta-data/local-ipv4
192.168.1.3$ curl http://lxer.com/
curl: (6) Couldn't resolve host 'lxer.com'

Now, if I do a ping 8.8.8.8 I get response... So maybe is a dns problem? Where should I change it?

And, I don't know if has something to do with the problem, but the router interface connected to the External network has DOWN status...

IP fija
    Dirección IP: 10.51.1.125, ID de subred f952c793-47c2-40bd-8881-3aecd6b4594a
**Status
    DOWN
Admin Status
    UP**
Dispositivo asociado
    Propietario del dispositivo: network:router_gateway
    ID del dispositivo: 7c883489-6397-4adc-acdb-1ab6c1fe74ce

And same thing with the external network ports...

image description

EDITED 2: ---------------------- NETWORK DESIGN ----------------------------

  • EXTERNAL NETWORK (eth0): 10.51.1.0/24 (GATEWAY 10.51.1.1)
  • MANAGEMENT NETWORK (eth1): 192.168.10.0/24
  • INSTANCES NETWORK (eth0:1): 192.168.11.0/24

image description image description

NETWORK NODE:

# cat /etc/sysconfig/network-scripts/ifcfg-eth*

DEVICE="eth0"
ONBOOT="yes"
TYPE="Ethernet"
NAME=Externa
NM_CONTROLLED=no
BOOTPROTO=dhcp

DEVICE="eth1"
ONBOOT="yes"
IPADDR=192.168.10.3
PREFIX=24
NAME=Interna
#GATEWAY=192.168.10.1

DEVICE="eth1:0"
ONBOOT="yes"
IPADDR=192.168.11.3
PREFIX=24
NAME=Tunel

# ifconfig

br-ex     Link encap:Ethernet  HWaddr 00:1C:C0:06:74:28  
          inet6 addr: fe80::74e9:c9ff:fe7f:d2b2/64 Scope:Link
          UP BROADCAST RUNNING  MTU:1500  Metric:1
          RX packets:88219 errors:0 dropped:0 overruns:0 frame:0
          TX packets:7 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:8939287 (8.5 MiB)  TX bytes:510 (510.0 b)

br-int    Link encap:Ethernet  HWaddr AE:C3:9B:32:C4:45  
          inet6 addr: fe80::1c0a:ddff:fedd:919f/64 Scope:Link
          UP BROADCAST RUNNING  MTU:1500  Metric:1
          RX packets:107 errors:0 dropped:0 overruns:0 frame:0
          TX packets:6 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:9616 (9.3 KiB)  TX bytes:468 (468.0 b)

br-tun    Link encap:Ethernet  HWaddr 12:7A:34:4A:82:40  
          inet6 addr: fe80::8c77:2aff:feec:c576/64 Scope:Link
          UP BROADCAST RUNNING  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:6 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:0 (0.0 b)  TX bytes:468 (468.0 b)

eth0      Link encap:Ethernet  HWaddr 00:1C:C0:06:74:28  
          inet addr:10.51.1.219  Bcast:10.51.1.255  Mask:255.255.255.0
          inet6 addr: fe80::21c:c0ff:fe06:7428/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:120373 errors:0 dropped:0 overruns:0 frame:0
          TX packets:33736 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:11003593 (10.4 MiB)  TX bytes:1640708 (1.5 MiB)
          Interrupt:20 Memory:92200000-92220000 

eth1      Link encap:Ethernet  HWaddr 00:48:54:4C:24:40  
          inet addr:192.168.10.3  Bcast:192.168.10.255  Mask:255.255.255.0
          inet6 addr: fe80::248:54ff:fe4c:2440/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:54066 errors:0 dropped:0 overruns:0 frame:0
          TX packets:62535 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:6601939 (6.2 MiB)  TX bytes:14655277 (13.9 MiB)
          Interrupt:21 Base address:0xc800 

eth1:0    Link encap:Ethernet  HWaddr 00:48:54:4C:24:40  
          inet addr:192.168.11.3  Bcast:192.168.11.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          Interrupt:21 Base address:0xc800 

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:15959 errors:0 dropped:0 overruns:0 frame:0
          TX packets:15959 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:2118286 (2.0 MiB)  TX bytes:2118286 (2.0 MiB)

# route -n

Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
10.51.1.0       0.0.0.0         255.255.255.0   U     0      0        0 eth0
192.168.11.0    0.0.0.0         255.255.255.0   U     0      0        0 eth1
192.168.10.0    0.0.0.0         255.255.255.0   U     0      0        0 eth1
169.254.0.0     0.0.0.0         255.255.0.0     U     1002   0        0 eth0
169.254.0.0     0.0.0.0         255.255.0.0     U     1003   0        0 eth1
0.0.0.0         10.51.1.1       0.0.0.0         UG    0      0        0 eth0

#ovs-vsctl show

63a6abbc-87ad-4064-9ff1-31d581558fc3
    Bridge br-int
        Port "qr-bf0abcc0-b2"
            tag: 1
            Interface "qr-bf0abcc0-b2"
                type: internal
        Port "tape0450457-1c"
            tag: 1
            Interface "tape0450457-1c"
                type: internal
        Port br-int
            Interface br-int
                type: internal
        Port patch-tun
            Interface patch-tun
                type: patch
                options: {peer=patch-int}
    Bridge br-tun
        Port patch-int
            Interface patch-int
                type: patch
                options: {peer=patch-tun}
        Port br-tun
            Interface br-tun
                type: internal
        Port "gre-c0a80b04"
            Interface "gre-c0a80b04"
                type: gre
                options: {in_key=flow, local_ip="192.168.11.3", out_key=flow, remote_ip="192.168.11.4"}
    Bridge br-ex
        Port "eth0"
            Interface "eth0"
        Port br-ex
            Interface br-ex
                type: internal
        Port "qg-422ba938-ec"
            Interface "qg-422ba938-ec"
                type: internal
    ovs_version: "1.11.0"

# ping www.google.es
^C

# ping 8.8.8.8

PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data.
From 10.51.1.219 icmp_seq=1 Destination Host Unreachable
From 10.51.1.219 icmp_seq=2 Destination Host Unreachable
From 10.51.1.219 icmp_seq=3 Destination Host Unreachable
^C
--- 8.8.8.8 ping statistics ---
4 packets transmitted, 0 received, +3 errors, 100% packet loss, time 3694ms
pipe 3

# traceroute 8.8.8.8

traceroute to 8.8.8.8 (8.8.8.8), 30 hops max, 60 byte packets
 1  10.51.1.219 (10.51.1.219)  3000.433 ms !H  3000.422 ms !H *

COMPUTE NODE (Internet acess works):

Same config but 192.168.10/11.4

# ifconfig 

br-int    Link encap:Ethernet  HWaddr 0E:97:A5:52:05:40  
          inet6 addr: fe80::d4be:8fff:fe49:48ea/64 Scope:Link
          UP BROADCAST RUNNING  MTU:1500  Metric:1
          RX packets:77 errors:0 dropped:0 overruns:0 frame:0
          TX packets:6 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:7236 (7.0 KiB)  TX bytes:468 (468.0 b)

br-tun    Link encap:Ethernet  HWaddr 7E:E0:A2:D7:33:4E  
          inet6 addr: fe80::3cf8:d6ff:fee2:5ce/64 Scope:Link
          UP BROADCAST RUNNING  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:6 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:0 (0.0 b)  TX bytes:468 (468.0 b)

eth0      Link encap:Ethernet  HWaddr 70:71:BC:94:97:F8  
          inet addr:10.51.1.235  Bcast:10.51.1.255  Mask:255.255.255.0
          inet6 addr: fe80::7271:bcff:fe94:97f8/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:88190 errors:0 dropped:0 overruns:0 frame:0
          TX packets:3282 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:8016008 (7.6 MiB)  TX bytes:233711 (228.2 KiB)
          Interrupt:20 Memory:fb200000-fb220000 

eth1      Link encap:Ethernet  HWaddr 00:01:02:B0:EB:D3  
          inet addr:192.168.10.4  Bcast:192.168.10.255  Mask:255.255.255.0
          inet6 addr: fe80::201:2ff:feb0:ebd3/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:82497 errors:0 dropped:0 overruns:1 frame:0
          TX packets:79857 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:27603830 (26.3 MiB)  TX bytes:19675514 (18.7 MiB)
          Interrupt:21 Base address:0xe000 

eth1:0    Link encap:Ethernet  HWaddr 00:01:02:B0:EB:D3  
          inet addr:192.168.11.4  Bcast:192.168.11.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          Interrupt:21 Base address:0xe000 

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:27 errors:0 dropped:0 overruns:0 frame:0
          TX packets:27 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:2312 (2.2 KiB)  TX bytes:2312 (2.2 KiB)

qbr5c96ddfc-71 Link encap:Ethernet  HWaddr 12:BC:2D:1A:F0:3A  
          inet6 addr: fe80::9892:9aff:fea6:9648/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:71 errors:0 dropped:0 overruns:0 frame:0
          TX packets:6 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:5580 (5.4 KiB)  TX bytes:468 (468.0 b)

qvb5c96ddfc-71 Link encap:Ethernet  HWaddr 12:BC:2D:1A:F0:3A  
          inet6 addr: fe80::10bc:2dff:fe1a:f03a/64 Scope:Link
          UP BROADCAST RUNNING PROMISC MULTICAST  MTU:1500  Metric:1
          RX packets:2509 errors:0 dropped:0 overruns:0 frame:0
          TX packets:2031 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:302940 (295.8 KiB)  TX bytes:356538 (348.1 KiB)

qvo5c96ddfc-71 Link encap:Ethernet  HWaddr 3A:68:55:80:A8:22  
          inet6 addr: fe80::3868:55ff:fe80:a822/64 Scope:Link
          UP BROADCAST RUNNING PROMISC MULTICAST  MTU:1500  Metric:1
          RX packets:2031 errors:0 dropped:0 overruns:0 frame:0
          TX packets:2509 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:356538 (348.1 KiB)  TX bytes:302940 (295.8 KiB)

tap5c96ddfc-71 Link encap:Ethernet  HWaddr FE:16:3E:A6:53:FD  
          inet6 addr: fe80::fc16:3eff:fea6:53fd/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:2021 errors:0 dropped:0 overruns:0 frame:0
          TX packets:2505 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:500 
          RX bytes:355782 (347.4 KiB)  TX bytes:302628 (295.5 KiB)

virbr0    Link encap:Ethernet  HWaddr 52:54:00:4B:42:69  
          inet addr:192.168.122.1  Bcast:192.168.122.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)

# route -n

Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
10.51.1.0       0.0.0.0         255.255.255.0   U     0      0        0 eth0
192.168.11.0    0.0.0.0         255.255.255.0   U     0      0        0 eth1
192.168.10.0    0.0.0.0         255.255.255.0   U     0      0        0 eth1
192.168.122.0   0.0.0.0         255.255.255.0   U     0      0        0 virbr0
169.254.0.0     0.0.0.0         255.255.0.0     U     1002   0        0 eth0
169.254.0.0     0.0.0.0         255.255.0.0     U     1003   0        0 eth1
0.0.0.0         10.51.1.1       0.0.0.0         UG    0      0        0 eth0

# ovs-vsctl show

a8dbd826-84b0-4121-8b09-1b915fde800d
    Bridge br-int
        Port patch-tun
            Interface patch-tun
                type: patch
                options: {peer=patch-int}
        Port "qvo5c96ddfc-71"
            tag: 1
            Interface "qvo5c96ddfc-71"
        Port br-int
            Interface br-int
                type: internal
    Bridge br-tun
        Port br-tun
            Interface br-tun
                type: internal
        Port patch-int
            Interface patch-int
                type: patch
                options: {peer=patch-tun}
        Port "gre-c0a80b03"
            Interface "gre-c0a80b03"
                type: gre
                options: {in_key=flow, local_ip="192.168.11.4", out_key=flow, remote_ip="192.168.11.3"}
    ovs_version: "1.11.0"

# brctl show

bridge name bridge id       STP enabled interfaces
qbr5c96ddfc-71      8000.12bc2d1af03a   no      qvb5c96ddfc-71
                            tap5c96ddfc-71
virbr0      8000.5254004b4269   yes     virbr0-nic

# ping www.google.es

PING www.google.es (173.194.34.216) 56(84) bytes of data.
64 bytes from mad01s08-in-f24.1e100.net (173.194.34.216): icmp_seq=1 ttl=53 time=13.9 ms
64 bytes from mad01s08-in-f24.1e100.net (173.194.34.216): icmp_seq=2 ttl=53 time=13.6 ms

CONTROLLER NODE (Internet acess works):

Same config but 192.168.10/11.2

# ifconfig

eth0      Link encap:Ethernet  HWaddr 00:19:D1:8F:FC:54  
          inet addr:10.51.1.226  Bcast:10.51.1.255  Mask:255.255.255.0
          inet6 addr: fe80::219:d1ff:fe8f:fc54/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:238765 errors:0 dropped:0 overruns:0 frame:0
          TX packets:335064 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:62791355 (59.8 MiB)  TX bytes:266564128 (254.2 MiB)
          Interrupt:20 Memory:e3200000-e3220000 

eth1      Link encap:Ethernet  HWaddr 00:0E:0C:6B:D8:4A  
          inet addr:192.168.10.2  Bcast:192.168.10.255  Mask:255.255.255.0
          inet6 addr: fe80::20e:cff:fe6b:d84a/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:117990 errors:0 dropped:0 overruns:0 frame:0
          TX packets:108354 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:29130641 (27.7 MiB)  TX bytes:16538498 (15.7 MiB)

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:1161165 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1161165 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:612535582 (584.1 MiB)  TX bytes:612535582 (584.1 MiB)

# route -n

Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
10.51.1.0       0.0.0.0         255.255.255.0   U     0      0        0 eth0
192.168.10.0    0.0.0.0         255.255.255.0   U     0      0        0 eth1
169.254.0.0     0.0.0.0         255.255.0.0     U     1002   0        0 eth0
169.254.0.0     0.0.0.0         255.255.0.0     U     1003   0        0 eth1
0.0.0.0         10.51.1.1       0.0.0.0         UG    0      0        0 eth0

# ping www.google.es

PING www.google.es (173.194.34.223) 56(84) bytes of data.
64 bytes from mad01s08-in-f31.1e100.net (173.194.34.223): icmp_seq=1 ttl=53 time=14.4 ms
64 bytes from mad01s08-in-f31.1e100.net (173.194.34.223): icmp_seq=2 ttl=53 time=13.9 ms

***SOLUTION AT THE END OF THIS REPLY***
-----------------------------------------------------------------------------------------

Sorry, now I've got a instance running and the floating IP. From the external network I can ping the instance, but this one can't ping internet neither.

neither. Now, the qvo from the Compute node.

node.

        [root@hades ~]# brctl show
 bridge name bridge id       STP enabled interfaces
 qbr5c96ddfc-71      8000.12bc2d1af03a   no      qvb5c96ddfc-71
                             tap5c96ddfc-71
 virbr0      8000.5254004b4269   yes     virbr0-nic
 [root@hades ~]# ovs-vsctl show
 a8dbd826-84b0-4121-8b09-1b915fde800d
     Bridge br-int
         Port patch-tun
             Interface patch-tun
                 type: patch
                 options: {peer=patch-int}
         Port "qvo5c96ddfc-71"
             tag: 1
             Interface "qvo5c96ddfc-71"
         Port br-int
             Interface br-int
                 type: internal
     Bridge br-tun
         Port br-tun
             Interface br-tun
                 type: internal
         Port patch-int
             Interface patch-int
                 type: patch
                 options: {peer=patch-tun}
         Port "gre-c0a80b03"
             Interface "gre-c0a80b03"
                 type: gre
                 options: {in_key=flow, local_ip="192.168.11.4", out_key=flow, remote_ip="192.168.11.3"}
     ovs_version: "1.11.0"

EDITED (in response to dbaxps):


dbaxps):
_______________________________

    $ ifconfig
 eth0      Link encap:Ethernet  HWaddr FA:16:3E:A6:53:FD  
           inet addr:192.168.1.3  Bcast:192.168.1.255  Mask:255.255.255.0
           inet6 addr: fe80::f816:3eff:fea6:53fd/64 Scope:Link
           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
           RX packets:531 errors:0 dropped:0 overruns:0 frame:0
           TX packets:476 errors:0 dropped:0 overruns:0 carrier:0
           collisions:0 txqueuelen:1000 
           RX bytes:49246 (48.0 KiB)  TX bytes:48729 (47.5 KiB)

 lo        Link encap:Local Loopback  
           inet addr:127.0.0.1  Mask:255.0.0.0
           inet6 addr: ::1/128 Scope:Host
           UP LOOPBACK RUNNING  MTU:16436  Metric:1
           RX packets:12 errors:0 dropped:0 overruns:0 frame:0
           TX packets:12 errors:0 dropped:0 overruns:0 carrier:0
           collisions:0 txqueuelen:0 
           RX bytes:1008 (1008.0 B)  TX bytes:1008 (1008.0 B)

 $ curl http://169.254.169.254/latest/meta-data/instance-id
 i-00000001$ curl http://169.254.169.254/latest/meta-data/local-ipv4
 192.168.1.3$ curl http://lxer.com/
 curl: (6) Couldn't resolve host 'lxer.com'

Now, if I do a ping 8.8.8.8 I get response... So maybe is a dns problem? Where should I change it?

And, I don't know if has something to do with the problem, but the router interface connected to the External network has DOWN status...

 IP fija
     Dirección IP: 10.51.1.125, ID de subred f952c793-47c2-40bd-8881-3aecd6b4594a
 **Status
     DOWN
 Admin Status
     UP**
 Dispositivo asociado
     Propietario del dispositivo: network:router_gateway
     ID del dispositivo: 7c883489-6397-4adc-acdb-1ab6c1fe74ce

7c883489-6397-4adc-acdb-1ab6c1fe74ce And same thing with the external network ports...

image description

EDITED 2: ![image description](/upfiles/14019054048792402.png) **EDITED 2:** ---------------------- NETWORK DESIGN ----------------------------

  • ---------------------------- - EXTERNAL NETWORK (eth0): 10.51.1.0/24 (GATEWAY 10.51.1.1)
  • - MANAGEMENT NETWORK (eth1): 192.168.10.0/24
  • 192.168.10.0/24 - INSTANCES NETWORK (eth0:1): 192.168.11.0/24

image description image description

NETWORK NODE:

192.168.11.0/24

![image description](/upfiles/14019540562407318.png)
![image description](/upfiles/14019557953691068.jpg)

**NETWORK NODE:**

    # cat /etc/sysconfig/network-scripts/ifcfg-eth*

 DEVICE="eth0"
 ONBOOT="yes"
 TYPE="Ethernet"
 NAME=Externa
 NM_CONTROLLED=no
 BOOTPROTO=dhcp

 DEVICE="eth1"
 ONBOOT="yes"
 IPADDR=192.168.10.3
 PREFIX=24
 NAME=Interna
 #GATEWAY=192.168.10.1

 DEVICE="eth1:0"
 ONBOOT="yes"
 IPADDR=192.168.11.3
 PREFIX=24
 NAME=Tunel

 # ifconfig

 br-ex     Link encap:Ethernet  HWaddr 00:1C:C0:06:74:28  
           inet6 addr: fe80::74e9:c9ff:fe7f:d2b2/64 Scope:Link
           UP BROADCAST RUNNING  MTU:1500  Metric:1
           RX packets:88219 errors:0 dropped:0 overruns:0 frame:0
           TX packets:7 errors:0 dropped:0 overruns:0 carrier:0
           collisions:0 txqueuelen:0 
           RX bytes:8939287 (8.5 MiB)  TX bytes:510 (510.0 b)

 br-int    Link encap:Ethernet  HWaddr AE:C3:9B:32:C4:45  
           inet6 addr: fe80::1c0a:ddff:fedd:919f/64 Scope:Link
           UP BROADCAST RUNNING  MTU:1500  Metric:1
           RX packets:107 errors:0 dropped:0 overruns:0 frame:0
           TX packets:6 errors:0 dropped:0 overruns:0 carrier:0
           collisions:0 txqueuelen:0 
           RX bytes:9616 (9.3 KiB)  TX bytes:468 (468.0 b)

 br-tun    Link encap:Ethernet  HWaddr 12:7A:34:4A:82:40  
           inet6 addr: fe80::8c77:2aff:feec:c576/64 Scope:Link
           UP BROADCAST RUNNING  MTU:1500  Metric:1
           RX packets:0 errors:0 dropped:0 overruns:0 frame:0
           TX packets:6 errors:0 dropped:0 overruns:0 carrier:0
           collisions:0 txqueuelen:0 
           RX bytes:0 (0.0 b)  TX bytes:468 (468.0 b)

 eth0      Link encap:Ethernet  HWaddr 00:1C:C0:06:74:28  
           inet addr:10.51.1.219  Bcast:10.51.1.255  Mask:255.255.255.0
           inet6 addr: fe80::21c:c0ff:fe06:7428/64 Scope:Link
           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
           RX packets:120373 errors:0 dropped:0 overruns:0 frame:0
           TX packets:33736 errors:0 dropped:0 overruns:0 carrier:0
           collisions:0 txqueuelen:1000 
           RX bytes:11003593 (10.4 MiB)  TX bytes:1640708 (1.5 MiB)
           Interrupt:20 Memory:92200000-92220000 

 eth1      Link encap:Ethernet  HWaddr 00:48:54:4C:24:40  
           inet addr:192.168.10.3  Bcast:192.168.10.255  Mask:255.255.255.0
           inet6 addr: fe80::248:54ff:fe4c:2440/64 Scope:Link
           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
           RX packets:54066 errors:0 dropped:0 overruns:0 frame:0
           TX packets:62535 errors:0 dropped:0 overruns:0 carrier:0
           collisions:0 txqueuelen:1000 
           RX bytes:6601939 (6.2 MiB)  TX bytes:14655277 (13.9 MiB)
           Interrupt:21 Base address:0xc800 

 eth1:0    Link encap:Ethernet  HWaddr 00:48:54:4C:24:40  
           inet addr:192.168.11.3  Bcast:192.168.11.255  Mask:255.255.255.0
           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
           Interrupt:21 Base address:0xc800 

 lo        Link encap:Local Loopback  
           inet addr:127.0.0.1  Mask:255.0.0.0
           inet6 addr: ::1/128 Scope:Host
           UP LOOPBACK RUNNING  MTU:16436  Metric:1
           RX packets:15959 errors:0 dropped:0 overruns:0 frame:0
           TX packets:15959 errors:0 dropped:0 overruns:0 carrier:0
           collisions:0 txqueuelen:0 
           RX bytes:2118286 (2.0 MiB)  TX bytes:2118286 (2.0 MiB)

 # route -n

 Kernel IP routing table
 Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
 10.51.1.0       0.0.0.0         255.255.255.0   U     0      0        0 eth0
 192.168.11.0    0.0.0.0         255.255.255.0   U     0      0        0 eth1
 192.168.10.0    0.0.0.0         255.255.255.0   U     0      0        0 eth1
 169.254.0.0     0.0.0.0         255.255.0.0     U     1002   0        0 eth0
 169.254.0.0     0.0.0.0         255.255.0.0     U     1003   0        0 eth1
 0.0.0.0         10.51.1.1       0.0.0.0         UG    0      0        0 eth0

 #ovs-vsctl show

 63a6abbc-87ad-4064-9ff1-31d581558fc3
     Bridge br-int
         Port "qr-bf0abcc0-b2"
             tag: 1
             Interface "qr-bf0abcc0-b2"
                 type: internal
         Port "tape0450457-1c"
             tag: 1
             Interface "tape0450457-1c"
                 type: internal
         Port br-int
             Interface br-int
                 type: internal
         Port patch-tun
             Interface patch-tun
                 type: patch
                 options: {peer=patch-int}
     Bridge br-tun
         Port patch-int
             Interface patch-int
                 type: patch
                 options: {peer=patch-tun}
         Port br-tun
             Interface br-tun
                 type: internal
         Port "gre-c0a80b04"
             Interface "gre-c0a80b04"
                 type: gre
                 options: {in_key=flow, local_ip="192.168.11.3", out_key=flow, remote_ip="192.168.11.4"}
     Bridge br-ex
         Port "eth0"
             Interface "eth0"
         Port br-ex
             Interface br-ex
                 type: internal
         Port "qg-422ba938-ec"
             Interface "qg-422ba938-ec"
                 type: internal
     ovs_version: "1.11.0"

 # ping www.google.es
 ^C

 # ping 8.8.8.8

 PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data.
 From 10.51.1.219 icmp_seq=1 Destination Host Unreachable
 From 10.51.1.219 icmp_seq=2 Destination Host Unreachable
 From 10.51.1.219 icmp_seq=3 Destination Host Unreachable
 ^C
 --- 8.8.8.8 ping statistics ---
 4 packets transmitted, 0 received, +3 errors, 100% packet loss, time 3694ms
 pipe 3

 # traceroute 8.8.8.8

 traceroute to 8.8.8.8 (8.8.8.8), 30 hops max, 60 byte packets
  1  10.51.1.219 (10.51.1.219)  3000.433 ms !H  3000.422 ms !H *

COMPUTE **COMPUTE NODE (Internet acess works):

works):** Same config but 192.168.10/11.4

192.168.10/11.4

    # ifconfig 

 br-int    Link encap:Ethernet  HWaddr 0E:97:A5:52:05:40  
           inet6 addr: fe80::d4be:8fff:fe49:48ea/64 Scope:Link
           UP BROADCAST RUNNING  MTU:1500  Metric:1
           RX packets:77 errors:0 dropped:0 overruns:0 frame:0
           TX packets:6 errors:0 dropped:0 overruns:0 carrier:0
           collisions:0 txqueuelen:0 
           RX bytes:7236 (7.0 KiB)  TX bytes:468 (468.0 b)

 br-tun    Link encap:Ethernet  HWaddr 7E:E0:A2:D7:33:4E  
           inet6 addr: fe80::3cf8:d6ff:fee2:5ce/64 Scope:Link
           UP BROADCAST RUNNING  MTU:1500  Metric:1
           RX packets:0 errors:0 dropped:0 overruns:0 frame:0
           TX packets:6 errors:0 dropped:0 overruns:0 carrier:0
           collisions:0 txqueuelen:0 
           RX bytes:0 (0.0 b)  TX bytes:468 (468.0 b)

 eth0      Link encap:Ethernet  HWaddr 70:71:BC:94:97:F8  
           inet addr:10.51.1.235  Bcast:10.51.1.255  Mask:255.255.255.0
           inet6 addr: fe80::7271:bcff:fe94:97f8/64 Scope:Link
           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
           RX packets:88190 errors:0 dropped:0 overruns:0 frame:0
           TX packets:3282 errors:0 dropped:0 overruns:0 carrier:0
           collisions:0 txqueuelen:1000 
           RX bytes:8016008 (7.6 MiB)  TX bytes:233711 (228.2 KiB)
           Interrupt:20 Memory:fb200000-fb220000 

 eth1      Link encap:Ethernet  HWaddr 00:01:02:B0:EB:D3  
           inet addr:192.168.10.4  Bcast:192.168.10.255  Mask:255.255.255.0
           inet6 addr: fe80::201:2ff:feb0:ebd3/64 Scope:Link
           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
           RX packets:82497 errors:0 dropped:0 overruns:1 frame:0
           TX packets:79857 errors:0 dropped:0 overruns:0 carrier:0
           collisions:0 txqueuelen:1000 
           RX bytes:27603830 (26.3 MiB)  TX bytes:19675514 (18.7 MiB)
           Interrupt:21 Base address:0xe000 

 eth1:0    Link encap:Ethernet  HWaddr 00:01:02:B0:EB:D3  
           inet addr:192.168.11.4  Bcast:192.168.11.255  Mask:255.255.255.0
           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
           Interrupt:21 Base address:0xe000 

 lo        Link encap:Local Loopback  
           inet addr:127.0.0.1  Mask:255.0.0.0
           inet6 addr: ::1/128 Scope:Host
           UP LOOPBACK RUNNING  MTU:16436  Metric:1
           RX packets:27 errors:0 dropped:0 overruns:0 frame:0
           TX packets:27 errors:0 dropped:0 overruns:0 carrier:0
           collisions:0 txqueuelen:0 
           RX bytes:2312 (2.2 KiB)  TX bytes:2312 (2.2 KiB)

 qbr5c96ddfc-71 Link encap:Ethernet  HWaddr 12:BC:2D:1A:F0:3A  
           inet6 addr: fe80::9892:9aff:fea6:9648/64 Scope:Link
           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
           RX packets:71 errors:0 dropped:0 overruns:0 frame:0
           TX packets:6 errors:0 dropped:0 overruns:0 carrier:0
           collisions:0 txqueuelen:0 
           RX bytes:5580 (5.4 KiB)  TX bytes:468 (468.0 b)

 qvb5c96ddfc-71 Link encap:Ethernet  HWaddr 12:BC:2D:1A:F0:3A  
           inet6 addr: fe80::10bc:2dff:fe1a:f03a/64 Scope:Link
           UP BROADCAST RUNNING PROMISC MULTICAST  MTU:1500  Metric:1
           RX packets:2509 errors:0 dropped:0 overruns:0 frame:0
           TX packets:2031 errors:0 dropped:0 overruns:0 carrier:0
           collisions:0 txqueuelen:1000 
           RX bytes:302940 (295.8 KiB)  TX bytes:356538 (348.1 KiB)

 qvo5c96ddfc-71 Link encap:Ethernet  HWaddr 3A:68:55:80:A8:22  
           inet6 addr: fe80::3868:55ff:fe80:a822/64 Scope:Link
           UP BROADCAST RUNNING PROMISC MULTICAST  MTU:1500  Metric:1
           RX packets:2031 errors:0 dropped:0 overruns:0 frame:0
           TX packets:2509 errors:0 dropped:0 overruns:0 carrier:0
           collisions:0 txqueuelen:1000 
           RX bytes:356538 (348.1 KiB)  TX bytes:302940 (295.8 KiB)

 tap5c96ddfc-71 Link encap:Ethernet  HWaddr FE:16:3E:A6:53:FD  
           inet6 addr: fe80::fc16:3eff:fea6:53fd/64 Scope:Link
           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
           RX packets:2021 errors:0 dropped:0 overruns:0 frame:0
           TX packets:2505 errors:0 dropped:0 overruns:0 carrier:0
           collisions:0 txqueuelen:500 
           RX bytes:355782 (347.4 KiB)  TX bytes:302628 (295.5 KiB)

 virbr0    Link encap:Ethernet  HWaddr 52:54:00:4B:42:69  
           inet addr:192.168.122.1  Bcast:192.168.122.255  Mask:255.255.255.0
           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
           RX packets:0 errors:0 dropped:0 overruns:0 frame:0
           TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
           collisions:0 txqueuelen:0 
           RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)

 # route -n

 Kernel IP routing table
 Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
 10.51.1.0       0.0.0.0         255.255.255.0   U     0      0        0 eth0
 192.168.11.0    0.0.0.0         255.255.255.0   U     0      0        0 eth1
 192.168.10.0    0.0.0.0         255.255.255.0   U     0      0        0 eth1
 192.168.122.0   0.0.0.0         255.255.255.0   U     0      0        0 virbr0
 169.254.0.0     0.0.0.0         255.255.0.0     U     1002   0        0 eth0
 169.254.0.0     0.0.0.0         255.255.0.0     U     1003   0        0 eth1
 0.0.0.0         10.51.1.1       0.0.0.0         UG    0      0        0 eth0

 # ovs-vsctl show

 a8dbd826-84b0-4121-8b09-1b915fde800d
     Bridge br-int
         Port patch-tun
             Interface patch-tun
                 type: patch
                 options: {peer=patch-int}
         Port "qvo5c96ddfc-71"
             tag: 1
             Interface "qvo5c96ddfc-71"
         Port br-int
             Interface br-int
                 type: internal
     Bridge br-tun
         Port br-tun
             Interface br-tun
                 type: internal
         Port patch-int
             Interface patch-int
                 type: patch
                 options: {peer=patch-tun}
         Port "gre-c0a80b03"
             Interface "gre-c0a80b03"
                 type: gre
                 options: {in_key=flow, local_ip="192.168.11.4", out_key=flow, remote_ip="192.168.11.3"}
     ovs_version: "1.11.0"

 # brctl show

 bridge name bridge id       STP enabled interfaces
 qbr5c96ddfc-71      8000.12bc2d1af03a   no      qvb5c96ddfc-71
                             tap5c96ddfc-71
 virbr0      8000.5254004b4269   yes     virbr0-nic

 # ping www.google.es

 PING www.google.es (173.194.34.216) 56(84) bytes of data.
 64 bytes from mad01s08-in-f24.1e100.net (173.194.34.216): icmp_seq=1 ttl=53 time=13.9 ms
 64 bytes from mad01s08-in-f24.1e100.net (173.194.34.216): icmp_seq=2 ttl=53 time=13.6 ms

CONTROLLER **CONTROLLER NODE (Internet acess works):

works):** Same config but 192.168.10/11.2

192.168.10/11.2

    # ifconfig

 eth0      Link encap:Ethernet  HWaddr 00:19:D1:8F:FC:54  
           inet addr:10.51.1.226  Bcast:10.51.1.255  Mask:255.255.255.0
           inet6 addr: fe80::219:d1ff:fe8f:fc54/64 Scope:Link
           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
           RX packets:238765 errors:0 dropped:0 overruns:0 frame:0
           TX packets:335064 errors:0 dropped:0 overruns:0 carrier:0
           collisions:0 txqueuelen:1000 
           RX bytes:62791355 (59.8 MiB)  TX bytes:266564128 (254.2 MiB)
           Interrupt:20 Memory:e3200000-e3220000 

 eth1      Link encap:Ethernet  HWaddr 00:0E:0C:6B:D8:4A  
           inet addr:192.168.10.2  Bcast:192.168.10.255  Mask:255.255.255.0
           inet6 addr: fe80::20e:cff:fe6b:d84a/64 Scope:Link
           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
           RX packets:117990 errors:0 dropped:0 overruns:0 frame:0
           TX packets:108354 errors:0 dropped:0 overruns:0 carrier:0
           collisions:0 txqueuelen:1000 
           RX bytes:29130641 (27.7 MiB)  TX bytes:16538498 (15.7 MiB)

 lo        Link encap:Local Loopback  
           inet addr:127.0.0.1  Mask:255.0.0.0
           inet6 addr: ::1/128 Scope:Host
           UP LOOPBACK RUNNING  MTU:16436  Metric:1
           RX packets:1161165 errors:0 dropped:0 overruns:0 frame:0
           TX packets:1161165 errors:0 dropped:0 overruns:0 carrier:0
           collisions:0 txqueuelen:0 
           RX bytes:612535582 (584.1 MiB)  TX bytes:612535582 (584.1 MiB)

 # route -n

 Kernel IP routing table
 Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
 10.51.1.0       0.0.0.0         255.255.255.0   U     0      0        0 eth0
 192.168.10.0    0.0.0.0         255.255.255.0   U     0      0        0 eth1
 169.254.0.0     0.0.0.0         255.255.0.0     U     1002   0        0 eth0
 169.254.0.0     0.0.0.0         255.255.0.0     U     1003   0        0 eth1
 0.0.0.0         10.51.1.1       0.0.0.0         UG    0      0        0 eth0

 # ping www.google.es

 PING www.google.es (173.194.34.223) 56(84) bytes of data.
 64 bytes from mad01s08-in-f31.1e100.net (173.194.34.223): icmp_seq=1 ttl=53 time=14.4 ms
 64 bytes from mad01s08-in-f31.1e100.net (173.194.34.223): icmp_seq=2 ttl=53 time=13.9 ms

SOLUTION (thanks to dbaxps)

Wait , per your report on Network Node br-ex doesn't have ip, eth0 does have IP Right ?
At the same time eth0 is OVS port of bridge br-ex. On RH system I would like:-

 [root@icehouse1 network-scripts(keystone_admin)]# cat ifcfg-br-ex
DEVICE="br-ex"
BOOTPROTO="static"
IPADDR="10.51.1.219"
NETMASK="255.255.255.0"
DNS1=". . . . . . . . . ."
BROADCAST="10.51.1.255"
GATEWAY="10.51.1.1"
NM_CONTROLLED="no"
DEFROUTE="yes"
IPV4_FAILURE_FATAL="yes"
IPV6INIT=no
ONBOOT="yes"
TYPE="OVSBridge"
DEVICETYPE="ovs"

[root@icehouse1 network-scripts(keystone_admin)]# cat ifcfg-eth0
DEVICE=eth0
ONBOOT="yes"
TYPE="OVSPort"
DEVICETYPE="ovs"
OVS_BRIDGE=br-ex
NM_CONTROLLED=no
IPV6INIT=no

dbaxps (24 mins ago)

I mean that br-ex should get ip-address 10.51.1.219 of eth0 , eth0 as OVS port of br-ex shouldn't have ip at all. DNS Server should be placed in ifcfg-br-ex file. Point to real gateway in ifcfg-br-ex :-
GATEWAY="10.51.1.1"
dbaxps (17 mins ago)