[one-users] Can't access the running VM's from the outside network

[Javier Fontan]

The MD5 hash of CentOS image was incorrect. I've just updated it.
Thanks for the tip.

On Mon, Aug 19, 2013 at 10:27 PM, Armando Escalante
<escalantea at gmail.com> wrote:
> Can't ssh or ping the VM's from outside. Can't access any external resource
> from inside the VM's (except as noted below)
>
> I have seen this reported before, and I have had it and solved earlier, but
> now I'm stuck on a new installation.
>
> Environment:
>
> Ubuntu Server 13.04
> Frontend with a NFS storage raid array
> Hosts (3)
> OpenNebula 4.2
> KVM
> Using 802.1Q VLAN on the config
>
> Hosts and Frontend have a 10GB private network
> All also have a normal 1GB Network (public IP's)
>
> I can create VM from images downloaded from the Marketplace. I also created
> my own images and contextualized them using the Opennebula contextualization
> script.
>
> They all come up fast and well. I can connect to them via the Sunstone VNC
> interface. On the Ubuntu, VM's using the images I built, I can login and
> check the system. Same with the Marketplace ttylinux/debian images as the
> credentials are known.
>
> The problem is that I can't ping or ssh to any of them from outside. I can't
> access external resources from the VM's I'm able to login via Sunstone/VNC
> either.
>
> The settings, from the VM's I can login seem correct, I mean, ifconfig,
> route, etc. DNS and Gateway are define and correct. I use a 255.255.255.192
> Netmask for my Public network, that also come in ok.
>
> I can ssh/ping other VM's running on the *same* host! But that is it. I had
> a similar issue on another installation, but can't recall how I resolved it.
> Had to do with the Context setting... I use the SunStone interface for all
> of this.
>
> This installation is almost identical, the only difference is the switch I
> use for the public network, this one uses a Cisco 3750 the older (and
> working) system uses a DLINK (both support VLAN's).
>
> I'm definitely doing something wrong. Opennabula is super easy and powerful
> but I can't see the issue! Any suggestions, recommendations will be
> appreciated!
>
> BTW, unrelated: the "CentOS 6.2 Server - kvm" image available on the
> Marketplace always errors when downloading.
>
> Best regards,
> Klimber
>
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>



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Javier Fontán Muiños
Developer
OpenNebula - The Open Source Toolkit for Data Center Virtualization
www.OpenNebula.org | @OpenNebula | github.com/jfontan