Open Stack

On 02/26/2016 03:48 AM, Paul Carlton wrote:
> Sean
>
> Don't think unstack failed, when I manually create the device ( sudo ovs-vsctl
> --no-wait -- --may-exist add-br br-ex) unstack.sh removes it.
>
> sudo ip route show
> default via 172.18.20.1 dev eth0
> 169.254.169.254 via 172.18.20.2 dev eth0
> 172.18.20.0/24 dev eth0  proto kernel  scope link  src 172.18.20.23
> 192.168.122.0/24 dev virbr0  proto kernel  scope link  src 192.168.122.1
>
>
> Matt
>
> config attached

So getting back to your original error:

$ sudo ip route replace 10.1.0.0/20 via 192.168.100.200
RTNETLINK answers: Network is unreachable

Looking at your local.conf:

FIXED_RANGE=10.1.0.0/20
FLOATING_RANGE=192.168.100.0/24
Q_FLOATING_ALLOCATION_POOL=start=192.168.100.200,end=192.168.100.254
PUBLIC_NETWORK_GATEWAY=192.168.100.1
PUBLIC_BRIDGE=br-ex

The 'ip route replace...' above is adding a route for the fixed IP range you've 
specified for your private subnet via what should be the neutron router for the 
network.  That router was allocated .200 when it attached to the external 
subnet, which is fine.

In order for this to work, the IP $PUBLIC_NETWORK_GATEWAY (192.168.100.1) needs 
to have been configured on br-ex ($PUBLIC_BRIDGE) beforehand, since otherwise 
the network will be unreachable.  Does 'ip a s dev br-ex' show that IP?

It could be that some setting in your local.conf is causing some 
mis-configuration, pasting 'neutron port-list' and 'neutron subnet-list' might 
help track down what is wrong.

-Brian