[Openstack] Instance cannot access internet

Jake G. dj_dark_junglist at yahoo.com
Tue Aug 6 01:04:30 UTC 2013

I cant really see any other issue other than the missing gateway from my network topology view which should be set to

From the host, I cannot ping GW IP or instance floating IP but I can ping the br-ex IP
From the instance, I can ping the GW IP, another instance IP, but unable to ping anything outside of the 10.0.0.x network

How can I check if there is a proper route from 10.0.0.X to 192.168.100.X in openstack? In other words, how can I check if the router was properly configured on the backend?

Thank you!

 From: Jake G. <dj_dark_junglist at yahoo.com>
To: Somanchi Trinath-B39208 <B39208 at freescale.com>; "openstack at lists.openstack.org" <openstack at lists.openstack.org> 
Sent: Monday, August 5, 2013 7:29 PM
Subject: Re: [Openstack] Instance cannot access internet

I added a floating IP but still didn't fix the issue. Attached the screenshot to show I did.

I have a feeling the issue is on my first picture where I said there is a missing IP. This could mean I dont have a route to the 192.168.100.x public network. 

What do you think?

 From: Somanchi Trinath-B39208 <B39208 at freescale.com>
To: Jake G. <dj_dark_junglist at yahoo.com>; "openstack at lists.openstack.org" <openstack at lists.openstack.org> 
Sent: Monday, August 5, 2013 7:06 PM
Subject: RE: [Openstack] Instance cannot access internet

As the Picture shows You haven’t assigned Floating IP ??? 
Check the Floating IP assignment.
Trinath Somanchi
( trinath.somanchi at freescale.com )
From:Jake G. [mailto:dj_dark_junglist at yahoo.com] 
Sent: Monday, August 05, 2013 1:39 PM
To: openstack at lists.openstack.org
Subject: [Openstack] Instance cannot access internet
Hi all! I have finally made some progress on networking, but now I have an issue with accessing the internet from an instance. 
After creating an instance, it receives a private IP from DHCP services (including DNS servers) which I can see in the console. Trying to ping yahoo.com does not work but I can ping which is the private network gateway.
I attached some helpful screenshots. I did notice that in the Network Topology view, there is no gateway IP address for the Public network showing,
But I did set the gateway to
Thank you in advance.

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