Hi Rushi,

Can you provide the output of the following commands on your node ?

# ip a
# ovs-vsctl show
# neutron net-list
# neutron subnet-list
# neutron router-list

Please note that only the br-ex bridge requires an IP address, the interface that's part of it shouldn't have one assigned. Also the floating IP addresses will be used for DNAT on the tenant router. You can check the documentation here[1] that describes the use of floating IPs.

You can also check the upstream documentation[2] on how to create the networks.

[1] https://openstack.redhat.com/Difference_between_Floating_IP_and_private_IP
[2] http://docs.openstack.org/juno/install-guide/install/yum/content/neutron_initial-external-network.html 

Tnx,
Marius


On Fri, Jan 9, 2015 at 10:22 PM, Ns, Rushi <rushi.ns@sap.com> wrote:
Hi Support,

I have  a problem that a launched instance  from openstack cannot connect to SSH or PING 

First of all I have dump question whether my system should be NOVA network or Neutron network. Well to keep everyone on the same page. Here is my history.

  1. I did install RDO (allinone host) using the bellow steps  https://openstack.redhat.com/Quickstart
  2. Then I have used the following steps for floating IP https://openstack.redhat.com/Floating_IP_range.
My situtation is as follows. 
* Floating IP address assignment: 
I have assigned a floating IP , I did follow this steps.
https://openstack.redhat.com/Floating_IP_range

* Bridge configuration:My Ethernet device eth0(actually in Redhat 7 it is eno1 name)is on the same bridge as the compute host
Yes, ethernet device on 10.48.146.78 address and br-ex interface on 10.48.146.112 

* DHCP configuration: Yes, DHCP configuration is set and Neutron hearing and responding to DHCP
requests and the instance is getting IP from 10.48.146.113 (next hop) however I cannot ping/ssh to that IP address (ICMP/SSH is added allowed
rule on default security group) 

Here is the little diagram of my system.

Can someone help to find what is missing.

 

Best Regards,

 

Rushi.

Success is not a matter of being the best & winning the race. Success is a matter of handling the worst & finishing the race 



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