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Cannot access instances from other hosts.

asked 2017-02-09 08:39:05 -0500

12721067 gravatar image

updated 2017-02-10 00:05:02 -0500


I have installed DevStack on my laptop. I am able to ping/ssh from the laptop to the instances, and I can access internet from the instances(ex: ping Here is my problem, what should I do to let other computers be able to access the instances?

I have:

  • A laptop that has DevStack installed:
  • The instance of openstack:,
  • A computer:


  1. The laptop can ping the instance.
  2. The laptop can ping the computer.
  3. The instance can ping anywhere(ex:, the laptop and the computer)
  4. The computer( cannot ping the instance(

I saw some questions have similar issue

(sorry I cannot post links)





Unfortunately, I still have the problem. Any advice and suggestions will be appreciated.


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It works~ Thank you very much!!! Goooood Job~~ By the way, how to mark you as the answer?

12721067 gravatar image12721067 ( 2017-02-10 00:02:06 -0500 )edit

Now you can give me full credit and make me famous!

Bernd Bausch gravatar imageBernd Bausch ( 2017-02-10 22:23:28 -0500 )edit

1 answer

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answered 2017-02-10 22:23:03 -0500

The "external" network created by devstack is just for testing. It's not really external. Try these instructions to change this:

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Thank you very much!!!

12721067 gravatar image12721067 ( 2017-02-10 23:08:35 -0500 )edit

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Asked: 2017-02-09 08:36:01 -0500

Seen: 708 times

Last updated: Feb 10 '17