0
votes
0answers
71 views

Packets are not routed by iptables, how to debug

I'm using OpenStack and OVS. This is my case: From a remote host, I ping VM with IP A. Local gateway received the echo request, then send a packet with IP A and MAC address A' (based on a fixed ...
1
vote
0answers
62 views

Openstack instances, routing, packets not delivered for SPECIFIC services

I am taking over management of an existing openstack system at work and I have only a little prior experience with openstack. I have about 8 instances running and all of them appear to function ...
1
vote
0answers
181 views

OpenStack Server Instances have internet access, but they are unable to access the internal network

I'm running an OpenStack Grizzly release with a Nova-Network configuration. [No Quantium]. My network is setup as follows: OpenStack Box (10.10.13.xx network)->OpenStack Internal Network ...
1
vote
1answer
2k views

DHCP reply packets do not make it into KVM instance in OpenStack

I'm running a KVM instance inside of OpenStack, and it isn't getting an IP address from the DHCP server. Using tcpdump, I can see the request and reply packets on vnet0 of the compute host: # ...
2
votes
1answer
432 views

Ping responses to floating IPs do not reach the router (iptables/nat)

I'm running OpenStack, and I'm having trouble accessing my instances from floating IPs, from anywhere except the network controller node. I've got a Folsom deployment with FlatDHCP, not running ...
-1
votes
1answer
307 views

Openstack Essex: how can I add custom iptables rules

I've got an openstack instance (all in one node) and want to redirect incoming traffic on some port from the host to one of the instance. Openstack Nova set up a whole bunch of iptables rules. How ...
4
votes
2answers
575 views

Are DNAT and REDIRECT equivalent when applied to locally destined traffic?

In setting up our OpenStack environment, I ran into a problem that was preventing instances from contacting a server running on the host. The metadata service (which exposes an HTTP API) runs on port ...
1
vote
1answer
390 views

Openstack instance cannot reach lan

Instances launched on openstack cannot connect to anything on the lan, yet they happily reach the internet (google, yahoo, etc.) Openstack setup: Ubuntu 12.04 running Openstack Essex Multi-node 1 ...