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I'm using Cloudstack 2.2.14 on a Ubuntu 10.04 set of hosts, and I have a problem on my setup.

I have two hosts running. When a virtual router is created on host 1 and a virtual machine using that virtual router is created on host 2, or vice versa, I have no connectivity at all on the virtual machine.

First of all, I have to setup the network manually on that virtual machine -usually DHCP is working, but not here-. Then, I can't ping to the virtual router from the virtual machine or vice versa.

When both virtual router and virtual machine are created on the same host, everything works!

Maybe those packages are being filtered somehow? I have no clue on how to proceed. Both hosts can communicate directly outside the virtualization.

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up vote 3 down vote accepted

This may not help my karma, but here goes:

After CloudStack became an Apache Foundation Incubator project, the bulk of the orginal development team started reading and answering questions on the email list.

AFAIK, this includes previous versions of CloudStack such as your 2.2.14.

You can subscribe by sending an email to

There is also an archive here

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Thank you. I think this solves my problem, since I know now how to keep going. ;) – Jorge Suárez de Lis Nov 27 '12 at 9:09

This sounds like you are using VLAN isolation but don't have the VLANs configured correctly on your switch.

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