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From Muhammad Adeel Zahid <>
Subject Re: Accessing Virtual Instances from other systems on the same subnet
Date Thu, 06 Apr 2017 19:16:22 GMT
Hi Rafael,

Thanks for reaching out. I am not sure about traffic labeling and rest of the stuff. I have
just setup the basic installation using this tutorial
and haven't explicitly set anything that is not in the tutorial. About the IP addresses of
VM's. Yes, they seem to have a single IP (ifconfig). Please note that I am creating VM's from
cenots 6.8 minimal ISO image that I intend to use later as template. Does that create the


From: Rafael Weingärtner <>
Sent: Friday, April 7, 2017 12:05:15 AM
Subject: Re: Accessing Virtual Instances from other systems on the same subnet

I asked a clarification because anything is a VM/instance (system and
users), I wanted to know if the VMs without access were either a system VM
(VR, SSVM, CVM or others) or a user VM.
Well, what is your setup? Are you using basic network where the public IP
is assigned directly to users VMs?

I asked you about the traffic label you are using for the public network.
System VMs get IPs on management and public networks. The SSVM has also an
IP on storage network. So, it seems that everything is fine with your
public networks, not so sure about the rest.VMs get an IP on Guest network.
The basic zone setup you will set the Guest IP as the public network (with
external access). Do these VMs have only a single IP?

On Thu, Apr 6, 2017 at 2:57 PM, Muhammad Adeel Zahid <>

> Specifically, by instances I mean the following
> I think, you people call it instance VM's or just VM's.  You can see that
> my instance VM's has addressed & respectively. I can
> access or ping them from the host they are running on but I cannot access
> or ping them from any other machine on the same network i.e
> On the other hand there are system VMs like Primary storage and secondary
> storage VM's as shown in figure below.
> I can access or ping these VM's using their public IP address from any of
> the systems on the same subnet (be they part of cloudstack installation or
> not). Now my question is, how I can access/ping my instance VM's from any
> system in the same subnet i.e
> Hope that clarifies the question
> ------------------------------
> *From:* Muhammad Adeel Zahid <>
> *Sent:* Thursday, April 6, 2017 6:05:57 PM
> *To:*
> *Subject:* Re: Accessing Virtual Instances from other systems on the same
> subnet
> by instances I mean what cloudstack management server calls instances. I
> have followed the sample guide to install cloudstack management and KVM on
> two separate machines and got no error during the installation.
> ________________________________
> From: Rafael Weingärtner <>
> Sent: Thursday, April 6, 2017 5:21:53 PM
> To:
> Subject: Re: Accessing Virtual Instances from other systems on the same
> subnet
> What is your setup?
> What do you mean by instances? User VMs?
> I am assuming you are talking about the public IP. Did you set the name of
> the public bridge properly (interface where the public traffic goes)?
> On Thu, Apr 6, 2017 at 6:44 AM, Muhammad Adeel Zahid <
> >
> wrote:
> > Hi Guys,
> >
> >
> > I have setup cloudstack management and hpyervisor (KVM) on machine 1 and
> > machine 2 respectively. I am successfully able to ping the instances from
> > hypervisor machine (machine 2) but I can't ping it from any of the other
> > machines on the same subnet. Why is that?  How can I make it work?
> >
> >
> > Another observation is that I can ping secondary storage and primary
> > storage vm's from any system on the same subnet without any extra
> > configuration. Can I have similar configuration-free setup from virtual
> > instances? If not, what else I have to do to ping/access virtual
> instances
> > from other machines in the same subnet.
> >
> >
> > Regards
> >
> > Adeel
> >
> --
> Rafael Weingärtner

Rafael Weingärtner

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