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Cannot ping VMs from host

asked 2014-12-16 12:36:51 -0600

giagiannis gravatar image


I am issues when I want to communicate from the host to a VM placed inside this host. However, I can ping VMs placed in ohter hosts of my cluster. I am running Openstack Icehouse and I am using nova-network for networking (multi-host).

Thanks in advance

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answered 2014-12-16 13:12:41 -0600

GLaupre gravatar image

This is normal. Your VM in your host is attached to a certain network which is normally isolated. If you did not configure any access from outside, your network can't be reached from outside.

The VMs can talk with each other because they are on the same subnet with the same VLAN tag even though they are not on the same host (that's one of the first purpose of nova-network).

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Actually, as said by smaffulli: "there are tons of similar questions on this site. Use the search and come back here to reopen/edit to add more details if you think your question is different."

GLaupre gravatar imageGLaupre ( 2014-12-16 13:18:27 -0600 )edit

Thanks for your response, however my question is a little bit different. The host has a network bridge and it has an IP address from the private network. Say host A contains VM B and host C contains VM D. A,B,C,D have interfaces inside the same private network. A->D and C->B works, why A->B doesn't?

giagiannis gravatar imagegiagiannis ( 2014-12-16 13:29:00 -0600 )edit

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Asked: 2014-12-16 12:36:51 -0600

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Last updated: Dec 16 '14