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unable to ping controller from instance

asked 2016-04-16 07:11:38 -0500

John Bernad gravatar image

HI all,

I have installed openstack liberty on centos7(2 node configuration) on 2 virtual machines using vcenter. i have installed the services(keystone, glance, nova, neutron, horizon) and now can launch an instance from the dash board. i have created 2 networks and linked it using a router 1: Public (192.168.90.0/24)-"external network" is set as the router gateway 2: Private (10.10.0.0/24)

I launch an instance with the cirros image, but i am not able to ping the controller or the default gateway.

NOTE: i have added the security rules for ssh https icmp on the instance.

Can anyone please help me out on this as, i am not so good at networking part.

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One more thing, the controllers an computes management interface is configured with 16.x.x.x series IP.

John Bernad gravatar imageJohn Bernad ( 2016-04-16 07:30:44 -0500 )edit

if you go to your instance..what is the output of route-n ?

Sofiane68 gravatar imageSofiane68 ( 2016-04-18 10:32:33 -0500 )edit

route -n gives this out put any destination ip 0.0.0.0 uses this gateway 10.10.0.1 Genmask is 0.0.0.0 with eth0 any destination ip 10.10.0.0 uses this gateway 0.0.0.0 Genmask is 255.255.255.0 interface eth0 any destination ip 169.254.169.254 uses this gateway 10.10.0.1 Genmask is 255.255.255.255

John Bernad gravatar imageJohn Bernad ( 2016-04-20 01:28:42 -0500 )edit

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answered 2016-04-16 08:23:24 -0500

hkominos gravatar image

Can you ping your dhcp server?

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Actually the dhcp server is in the 16.x.x.x series where as the controller and compute node is in 16.x.x.x series. So i will not be able to ping it.

John Bernad gravatar imageJohn Bernad ( 2016-04-18 08:12:07 -0500 )edit
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answered 2016-04-20 09:14:22 -0500

John Bernad gravatar image

dear all, One more clarification,

MY CONTROLLER NODE NIC1 IP is like this 16.x.x.x = eth0 and NIC2 no IP assigned eth1 MY COMPUTE NODE NIC1 IP is like this 16.x.x.x = eth0 and NIC2 no IP assigned eth1

The virtual networks created using the openstack dashboard :

Public network 192.x.x.x/24 private network 10.0.x.x/24

IS IT REQUIRED THAT THE PUBLIC network AND THE NIC1 IP OF THE CONTROLLER AND COMPUTE SHOULD BE IN THE SAME RANGE AS IN 192.X.X.X ?

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Asked: 2016-04-16 07:11:38 -0500

Seen: 421 times

Last updated: Apr 20 '16