Unable to access my instance from outside networks

asked 2017-07-14 18:10:34 -0500

Ab gravatar image

updated 2017-07-15 03:48:57 -0500


First of all I do apologize for the much information I added in my question as it is a results of 5 day research.

I have created Openstack Test environment using:
a) Physical machine with CentOS 7.3
b) Three virtual machine acting as controller, compute and network nodes.
c) KVM Hypervisor.

Environment Summary

- Pyshical Machine Hostname: http://base.superabdo.com

  • KVM Network name -> openstackNET
  • KVM Network Subnet ->
  • KVM Netwrok Gateway ->
  • KVM NIC is NATed to my physical NIC (eth0)

  • Controller node ->
  • Compute node ->
  • Network node ->

  • Instance Private network name: private

  • Instance Private network subnet:
  • Instance Public network name: public
  • Instance Public network subnet:

  • Following data captured from my environment: Networks:

    [root@controller ~(keystone_lauser)]# neutron net-list +--------------------------------------+---------+------------------------------------------------------+ | id | name | subnets | +--------------------------------------+---------+------------------------------------------------------+ | 8daf429b-dd4c-469c-9e68-59dbb96f02ed | private | e67601e9-7a02-4136-be9a-4502a896b887 | | a1f79ba2-8c36-4341-970c-6f653c2a9366 | public | 897f678f-5642-4844-9452-45b71f356f2a | +--------------------------------------+---------+------------------------------------------------------+

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How is your external network connected to the "physical" networks of the network node? Will a packet to, say,, be routed correctly? I suggest you run a ping from base.superabdo.com to and use tcpdump to check where the packets disappear.

Bernd Bausch gravatar imageBernd Bausch ( 2017-07-15 05:50:54 -0500 )edit

I am assuming you are using default security group. Pleas share the ouput of commnad

openstack security group rule list default
Praveen N gravatar imagePraveen N ( 2017-07-18 02:50:24 -0500 )edit

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answered 2017-07-18 05:07:57 -0500

TijoV gravatar image

Take a look at openstack security group list add ssh rule for your outside network, Associate floating IP's to your instnace created.

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Asked: 2017-07-14 18:10:09 -0500

Seen: 990 times

Last updated: Jul 18 '17