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Your br-ex does not have an ip your eth2 should not have the ip which is correct. 

Try that. 

Remo

Inviato da IPad ()

> Il giorno Aug 22, 2014, alle ore 5:05, David Pintor <hiya at davidpint.org> ha scritto:
> 
> Hi,
> 
> I have followed the Icehouse doc to install a 3 node environment in CentOS: http://docs.openstack.org/icehouse/install-guide/install/yum/content/basics-neutron-networking-network-node.html
> 
> In my network node, my external NIC is configured witout IP as per the documentation.
> 
> [root at network ~]# cat /etc/sysconfig/network-scripts/ifcfg-eth2
> DEVICE=eth2
> UUID=4a1e4bc2-dac3-4c0a-985a-5a4a2203196e
> BOOTPROTO=none
> ONBOOT=yes
> TYPE=Ethernet
> HWADDR=00:0c:29:8d:cc:0a
> 
> 
> However I cannot ping the external network (.80 is the virtual router).
> 
> [root at network ~]# ping 192.168.50.80
> PING 192.168.50.80 (192.168.50.80) 56(84) bytes of data.
> From 10.0.0.21 icmp_seq=1 Destination Host Unreachable
> From 10.0.0.21 icmp_seq=2 Destination Host Unreachable
> From 10.0.0.21 icmp_seq=3 Destination Host Unreachable
> 
> 
> This is the info of my environment:
> 
> 
> [root at network ~]# ip a
> 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN
>    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
>    inet 127.0.0.1/8 scope host lo
>    inet6 ::1/128 scope host
>       valid_lft forever preferred_lft forever
> 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
>    link/ether 00:0c:29:8d:cc:f6 brd ff:ff:ff:ff:ff:ff
>    inet 10.0.0.21/24 brd 10.0.0.255 scope global eth0
>    inet6 fe80::20c:29ff:fe8d:ccf6/64 scope link
>       valid_lft forever preferred_lft forever
> 3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
>    link/ether 00:0c:29:8d:cc:00 brd ff:ff:ff:ff:ff:ff
>    inet 10.0.1.21/24 brd 10.0.1.255 scope global eth1
>    inet6 fe80::20c:29ff:fe8d:cc00/64 scope link
>       valid_lft forever preferred_lft forever
> 4: eth2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
>    link/ether 00:0c:29:8d:cc:0a brd ff:ff:ff:ff:ff:ff
>    inet6 fe80::20c:29ff:fe8d:cc0a/64 scope link
>       valid_lft forever preferred_lft forever
> 5: ovs-system: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN
>    link/ether 9e:d9:ee:cf:18:ff brd ff:ff:ff:ff:ff:ff
> 6: br-ex: <BROADCAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN
>    link/ether 00:0c:29:8d:cc:0a brd ff:ff:ff:ff:ff:ff
>    inet6 fe80::80c0:34ff:fea7:ab5e/64 scope link
>       valid_lft forever preferred_lft forever
> 10: qr-d0661ff1-a9: <BROADCAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN
>    link/ether 2a:6d:c7:81:de:8e brd ff:ff:ff:ff:ff:ff
>    inet6 fe80::286d:c7ff:fe81:de8e/64 scope link
>       valid_lft forever preferred_lft forever
> 11: br-int: <BROADCAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN
>    link/ether 6a:aa:36:da:13:45 brd ff:ff:ff:ff:ff:ff
>    inet6 fe80::c058:39ff:fe4c:20f6/64 scope link
>       valid_lft forever preferred_lft forever
> 13: br-tun: <BROADCAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN
>    link/ether 56:74:ff:da:74:43 brd ff:ff:ff:ff:ff:ff
>    inet6 fe80::9802:72ff:fed0:f05a/64 scope link
>       valid_lft forever preferred_lft forever
> 
> [root at network ~]# neutron net-list
> +--------------------------------------+----------+-------------------------------------------------------+
> | id                                   | name     | subnets                                              |
> +--------------------------------------+----------+-------------------------------------------------------+
> | 2abc487a-09ad-4c5c-bb6b-a98a5a255ad4 | ext-net  | bca9b325-617f-4a0c-878d-44f384056c1c 192.168.50.0/24  |
> | 89954a51-5296-4743-97ac-19ddeb7010f4 | demo-net | 9760500a-1183-4e12-a975-ff6cbdafd27b 192.168.100.0/24 |
> +--------------------------------------+----------+-------------------------------------------------------+
> 
> [root at network ~]# neutron subnet-list
> +--------------------------------------+-------------+------------------+------------------------------------------------------+
> | id                                   | name        | cidr             | allocation_pools                                     |
> +--------------------------------------+-------------+------------------+------------------------------------------------------+
> | 9760500a-1183-4e12-a975-ff6cbdafd27b | demo-subnet | 192.168.100.0/24 | {"start": "192.168.100.2", "end": "192.168.100.254"} |
> | bca9b325-617f-4a0c-878d-44f384056c1c | ext-subnet  | 192.168.50.0/24  | {"start": "192.168.50.80", "end": "192.168.50.89"}   |
> +--------------------------------------+-------------+------------------+------------------------------------------------------+
> 
> [root at network ~]# neutron router-list
> +--------------------------------------+-------------+-----------------------------------------------------------------------------+
> | id                                   | name        | external_gateway_info                                                      |
> +--------------------------------------+-------------+-----------------------------------------------------------------------------+
> | 0786427e-d4c0-403a-a2cd-0182bc3bee1c | demo-router | {"network_id": "2abc487a-09ad-4c5c-bb6b-a98a5a255ad4", "enable_snat": true} |
> +--------------------------------------+-------------+-----------------------------------------------------------------------------+
> 
> [root at network ~]# ovs-vsctl show
> 537302fd-99cc-45ff-b470-2c924daf806e
>    Bridge br-ex
>        Port "eth2"
>            Interface "eth2"
>        Port "qg-783ec99d-ba"
>            Interface "qg-783ec99d-ba"
>                type: internal
>        Port br-ex
>            Interface br-ex
>                type: internal
>    Bridge br-int
>        Port "tap7ba88075-80"
>            tag: 1
>            Interface "tap7ba88075-80"
>                type: internal
>        Port "qr-b13b57db-17"
>            tag: 1
>            Interface "qr-b13b57db-17"
>                type: internal
>        Port patch-tun
>            Interface patch-tun
>                type: patch
>                options: {peer=patch-int}
>        Port "qr-d0661ff1-a9"
>            tag: 4095
>            Interface "qr-d0661ff1-a9"
>                type: internal
>        Port br-int
>            Interface br-int
>                type: internal
>    Bridge br-tun
>        Port br-tun
>            Interface br-tun
>                type: internal
>        Port "gre-0a00011f"
>            Interface "gre-0a00011f"
>                type: gre
>                options: {in_key=flow, local_ip="10.0.1.21", out_key=flow, remote_ip="10.0.1.31"}
>        Port patch-int
>            Interface patch-int
>                type: patch
>                options: {peer=patch-tun}
>    ovs_version: "1.11.0"
> 
> 
> Any hints would be much appreciated!
> 
> Cheers,
> 
> David
> 
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