Is this a Nova issue or Neutron issue? :)
** Also affects: neutron
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1478925
Title:
Instances on the same compute node unable to connect to each other's
ports
Status in neutron:
New
Status in OpenStack Compute (nova):
New
Bug description:
Openstack version: Icehouse 2014.1.5
Nova version: 2.17.0
I have two instances created on the same compute node connected to a
virtual network. I am trying to connect via the virtual network from
one instance to another to some port to which no process is listening
to and I am expecting to get a 'Connection refused' message from the
kernel.
This works as expected with any two instances on the same virtual
network that are located on different compute nodes, however, if the
instances are created on the same compute node, the connection times
out.
I have noticed that a temporary fix has been to tamper with the input
iptables rules by moving the rule which drops packets in an invalid
state after the rules for the other instances are defined, as such:
From:
-A neutron-openvswi-ic05bb97b-2 -m state --state INVALID -j DROP
-A neutron-openvswi-ic05bb97b-2 -m state --state RELATED,ESTABLISHED -j RETURN
-A neutron-openvswi-ic05bb97b-2 -p tcp -m tcp --dport 22 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -p tcp -m tcp --dport 35357 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -p tcp -m tcp --dport 80 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -p tcp -m tcp --dport 5000 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -p tcp -m tcp -m multiport --dports 9000:9999
-j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 9.0.0.41/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 9.0.0.25/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 3.0.0.45/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 9.0.0.17/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 4.0.0.12/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 9.0.0.36/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 3.0.0.43/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 9.0.0.40/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 9.0.0.35/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 6.0.0.3/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 9.0.0.28/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 4.0.0.10/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 9.0.0.22/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 3.0.0.44/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 3.0.0.47/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 9.0.0.44/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 9.0.0.39/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 9.0.0.20/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 9.0.0.26/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 9.0.0.38/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 9.0.0.29/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 3.0.0.48/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 6.0.0.6/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 9.0.0.15/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 9.0.0.24/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 4.0.0.11/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 9.0.0.45/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 9.0.0.54/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 9.0.0.13/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 9.0.0.43/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 9.0.0.33/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 3.0.0.42/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 9.0.0.46/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 9.0.0.42/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 9.0.0.23/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 3.0.0.50/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 9.0.0.12/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 9.0.0.16/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 9.0.0.14/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 9.0.0.37/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 5.0.0.7/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 3.0.0.41/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 3.0.0.46/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 9.0.0.48/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 9.0.0.30/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 9.0.0.21/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 9.0.0.27/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 5.0.0.8/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 6.0.0.5/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 5.0.0.6/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 9.0.0.49/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -p icmp -j RETURN
To:
-A neutron-openvswi-ic05bb97b-2 -m state --state RELATED,ESTABLISHED -j RETURN
-A neutron-openvswi-ic05bb97b-2 -p tcp -m tcp --dport 22 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -p tcp -m tcp --dport 35357 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -p tcp -m tcp --dport 80 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -p tcp -m tcp --dport 5000 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -p tcp -m tcp -m multiport --dports 9000:9999
-j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 9.0.0.41/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 9.0.0.25/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 3.0.0.45/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 9.0.0.17/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 4.0.0.12/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 9.0.0.36/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 3.0.0.43/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 9.0.0.40/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 9.0.0.35/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 6.0.0.3/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 9.0.0.28/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 4.0.0.10/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 9.0.0.22/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 3.0.0.44/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 3.0.0.47/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 9.0.0.44/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 9.0.0.39/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 9.0.0.20/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 9.0.0.26/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 9.0.0.38/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 9.0.0.29/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 3.0.0.48/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 6.0.0.6/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 9.0.0.15/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 9.0.0.24/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 4.0.0.11/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 9.0.0.45/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 9.0.0.54/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 9.0.0.13/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 9.0.0.43/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 9.0.0.33/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 3.0.0.42/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 9.0.0.46/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 9.0.0.42/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 9.0.0.23/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 3.0.0.50/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 9.0.0.12/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 9.0.0.16/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 9.0.0.14/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 9.0.0.37/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 5.0.0.7/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 3.0.0.41/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 3.0.0.46/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 9.0.0.48/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 9.0.0.30/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 9.0.0.21/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 9.0.0.27/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 5.0.0.8/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 6.0.0.5/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 5.0.0.6/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -s 9.0.0.49/32 -j RETURN
-A neutron-openvswi-ic05bb97b-2 -p icmp -j RETURN
-A neutron-openvswi-ic05bb97b-2 -m state --state INVALID -j DROP
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