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Instance to Instance access

asked 2014-04-30 10:28:28 -0500

Nolon gravatar image


I am running nova-network on the Havana release here. I am having issues getting instances network access to each other. External servers to the Instances and back work fine. But I have a situation where some instances need to access each other. I can not ssh or ping my instances internal or floating IP's from other instances.

I assume this getting blocked with the firewall/iptables that Openstack is controlling as I don't get any output from tcpdump on any interfaces on the compute nodes. I also assume that this maybe a routing issue that the instance cannot see the floating IP's network. Adding the route on the instance doesn't help either.

Is there anything in nova-network that I would need to set in the nova.conf file or add to a network-create command? I tried disabling the firewall with firewall_driver=nova.virt.firewall.NoopFirewallDriver to debug and that didn't help.

Any help is appreciated.


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answered 2014-05-01 09:10:07 -0500

Nolon gravatar image

Update. Now I have some instances that can ping others on the internal network, but some can not ping back. Its pretty random on which ones can and can't as they are spread across five nodes.

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Asked: 2014-04-30 10:28:28 -0500

Seen: 108 times

Last updated: May 01 '14