Open Stack

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