[Openstack] [OpenStack][Nova] Multi-host ip mix up.

Vishvananda Ishaya vishvananda at gmail.com
Mon Jun 25 20:03:55 UTC 2012


10.0.9.5 is probably the ip that nova assigned to your compute host for the bridge.

ip addr show should show it on br100

There is likely something else going on that is causing your instance to fail to network properly. I would check the console output of the vm first, make sure it is getting an ip address. If that looks good, check for security group rules, then start doing tcpdump to see where you are losing packets.

Vish

On Jun 25, 2012, at 9:08 AM, Leander Bessa Beernaert wrote:

> Hello, 
> 
> I've setup OpenStack with a multi-host configuration. Everything appears to be working fine. However, when i launch an instance, it get's assigned an ip (10.0.9.3) and when i ping that IP i get this output:
> ping 10.0.9.3
> PING 10.0.9.3 (10.0.9.3) 56(84) bytes of data.
> >From 10.0.9.5 icmp_seq=1 Destination Host Unreachable
> From 10.0.9.5 icmp_seq=2 Destination Host Unreachable
> From 10.0.9.5 icmp_seq=3 Destination Host Unreachable
> 
> If i ping the adress 10.0.9.5 i get a response.
> 
>  ping 10.0.9.5
> PING 10.0.9.5 (10.0.9.5) 56(84) bytes of data.
> 64 bytes from 10.0.9.5: icmp_req=1 ttl=64 time=0.043 ms
> 64 bytes from 10.0.9.5: icmp_req=2 ttl=64 time=0.035 ms
> 64 bytes from 10.0.9.5: icmp_req=3 ttl=64 time=0.036 ms
> 
> Any idea what's happening here?
> 
> Regards,
> Leander
> 
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