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Multiple networks communication in Openstack

asked 2016-08-23 19:47:55 -0500

Joe2006 gravatar image

updated 2016-08-23 19:50:13 -0500

Hi, I have 2 questions regarding multiple networks ..

1- How to get an instance on an internal network to connect/ping to all other

Instances on 2 or more networks? I can attach an interface to the instance and

Make the instance a member in 2 networks but When I SSH into the instance it

Can ping to one network only! It can 'see' one network only...

2- Is it possible to make 2 networks or more communicate and exchange data without

public IPs or floating IPs ?


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answered 2016-08-23 21:02:57 -0500

fifi gravatar image

First make sure you have granted access to required protocols and ports in your security group.

Second, there is no need to public IPs or floating IPs for your networks to communicate. If they are in two separate networks, you just need to set up a router to get them connected.

Third, How many virtual NIC you have on your instances?

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@sajadkh61 Thanks for the response, I grated access in the security group and I created a router with two interfaces one foe each network but still only one network is accessible from the instance. The instance has 2 NIC but on the Centos 7 64bit QCOW2 image The 2nd one (eth1) is not active

Joe2006 gravatar imageJoe2006 ( 2016-08-23 21:27:12 -0500 )edit

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Asked: 2016-08-23 19:47:55 -0500

Seen: 147 times

Last updated: Aug 23 '16