Open Stack

Hi,

Im trying out devstack in a single vm, and am running into a network
connectivity issue. After I launch an instance, I can successfully
connect to it from the host running devstack.

However, I have lost my internet access from the host running devstack
at this point. Im sure this has to do with me not understanding the
network config fully (of both openstack and the linux os), but I would
be grateful if people would be willing to help me out here.

I have listed what I think are the relevant config settings below.

Thanks.

Regards,


John Smith


--------------------------------------------------

$ cat localrc
ADMIN_PASSWORD=password
MYSQL_PASSWORD=password
RABBIT_PASSWORD=password
SERVICE_PASSWORD=password
SERVICE_TOKEN=tokentoken
RECLONE=yes
LOGFILE=$DEST/logs/stack.sh.log
SCREEN_LOGDIR=$DEST/logs/screen
HOST_IP_IFACE=p3p1
PUBLIC_INTERFACE=p3p1
VLAN_INTERFACE=p3p1
FLAT_INTERFACE=p3p1
HOST_IP=192.168.126.142
FIXED_RANGE=10.4.128.0/20
FIXED_NETWORK_SIZE=4096
FLOATING_RANGE=192.168.42.128/25


$ nova show myvm
+--------------------------------------+----------------------------------------------------------+
| Property                             | Value
                           |
+--------------------------------------+----------------------------------------------------------+
| OS-DCF:diskConfig                    | MANUAL
                           |
| OS-EXT-AZ:availability_zone          | nova
                           |
| OS-EXT-SRV-ATTR:host                 | localhost.localdomain
                           |
| OS-EXT-SRV-ATTR:hypervisor_hostname  | localhost.localdomain
                           |
| OS-EXT-SRV-ATTR:instance_name        | instance-00000001
                           |
| OS-EXT-STS:power_state               | 1
                           |
| OS-EXT-STS:task_state                | None
                           |
| OS-EXT-STS:vm_state                  | active
                           |
| OS-SRV-USG:launched_at               | 2013-11-30T13:19:27.000000
                           |
| OS-SRV-USG:terminated_at             | None
                           |
| accessIPv4                           |
                           |
| accessIPv6                           |
                           |
| config_drive                         |
                           |
| created                              | 2013-11-30T13:18:05Z
                           |
| flavor                               | m1.nano (42)
                           |
| hostId                               |
d1ebe74ccee540605fd901ddda658777655079a4b46f556de0cb51d0 |
| id                                   |
23137912-4e9d-4767-91f6-eda2a12be356                     |
| image                                | cirros-0.3.0-i386
(6c539300-7838-4acd-b66e-70f85f4489ac) |
| key_name                             | None
                           |
| metadata                             | {}
                           |
| name                                 | myvm
                           |
| os-extended-volumes:volumes_attached | []
                           |
| private network                      | 10.4.128.2
                           |
| progress                             | 0
                           |
| security_groups                      | default
                           |
| status                               | ACTIVE
                           |
| tenant_id                            |
d6830ec1b5a24ff7849719ba0a583232                         |
| updated                              | 2013-11-30T13:19:27Z
                           |
| user_id                              |
9f2a776df6d3463b89fc5edac4d403c4                         |
+--------------------------------------+----------------------------------------------------------+

$ ifconfig -a
br100: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 10.4.128.1  netmask 255.255.240.0  broadcast 10.4.143.255
        inet6 fe80::b003:91ff:fec1:38b5  prefixlen 64  scopeid 0x20<link>
        ether 00:0c:29:6e:32:be  txqueuelen 0  (Ethernet)
        RX packets 390  bytes 29771 (29.0 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 330  bytes 68098 (66.5 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 0  (Local Loopback)
        RX packets 52270  bytes 67067386 (63.9 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 52270  bytes 67067386 (63.9 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

p3p1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.126.142  netmask 255.255.255.0  broadcast 192.168.126.255
        inet6 fe80::20c:29ff:fe6e:32be  prefixlen 64  scopeid 0x20<link>
        ether 00:0c:29:6e:32:be  txqueuelen 1000  (Ethernet)
        RX packets 16934  bytes 7058149 (6.7 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 25449  bytes 3835923 (3.6 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
        device interrupt 19  base 0x2000

vnet0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet6 fe80::fc16:3eff:fe99:a5f7  prefixlen 64  scopeid 0x20<link>
        ether fe:16:3e:99:a5:f7  txqueuelen 500  (Ethernet)
        RX packets 49  bytes 5729 (5.5 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 185  bytes 26248 (25.6 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

$ netstat -nr
Kernel IP routing table
Destination     Gateway         Genmask         Flags   MSS Window  irtt Iface
0.0.0.0         192.168.126.2   0.0.0.0         UG        0 0          0 p3p1
10.4.128.0      0.0.0.0         255.255.240.0   U         0 0          0 br100
192.168.126.0   0.0.0.0         255.255.255.0   U         0 0          0 br100
192.168.126.0   0.0.0.0         255.255.255.0   U         0 0          0 p3p1

$ ping www.google.com
PING www.google.com (173.194.78.147) 56(84) bytes of data.
>From localhost.localdomain (192.168.126.142) icmp_seq=1 Destination
Host Unreachable
>From localhost.localdomain (192.168.126.142) icmp_seq=2 Destination
Host Unreachable
>From localhost.localdomain (192.168.126.142) icmp_seq=3 Destination
Host Unreachable