On 12/31/2013 03:43 PM, Neil Schulz wrote:
On 12/31/2013 3:02 AM, Sander Grendelman wrote:
On Mon, Dec 30, 2013 at 7:57 PM, Neil Schulz <[email protected]
<mailto:[email protected]>> wrote:
I'm not very knowledgeable in VLANs. Sorry for the lack of
knowledge in advance.
Is it possible to create a VLAN for WAN traffic, to separate it
from the internal network? I'd imagine so. It was a automated and
simple process when use XenServer. I'm trying to switch from Xen
to oVirt and when trying to recreate this, I'm unable to ping out
from the VM.
This leads me to believe the VLAN was created incorrectly. I
created ifcfg-br1 on the host and through the engine, created the
logical network with VLAN tagging 20. Does the interface,
ifcfg-br1, require a public IP, any IP address, no ip address?
(Sorry, never created a VLAN for WAN traffic as it was automated
in XenServer)
Assigning an IP-address to a VM network in oVirt is _not_ mandatory,
it is only needed for "management" networks (ovirtmgmnt, display, storage)
where the _hosts_ need connectivity to resources on that network.
Is this a tagged or an untagged vlan? (an untagged vlan means only one
vlan
per physical interface andneeds no extra configuration on the OS side)
Which other (physical) interfaces are in your "br1" interface?
Are the (tagged) vlans assigned to this interface?
A vlan interface on linux looks like this: "eth0.20" where eth0 is the
"physical" interface on which tagged vlans are configured and 20 is the
number of one of those interfaces.
In the case of an oVirt VM network the physical interface is bridged
(and sometimes bonded)
so the interface configuration looks like this: "br1.20".
The "normal" route for configuring a new network in ovirt is to
configure it in the "networks" tab
(as a VM network) and then assigin this network to physical- or bonded
interfaces on all the
hosts in your cluster.
So the steps I have taken to create this.
1. Assign the 2nd physical interface a static IP.
2. In oVirt Engine, go to "Data Centers" and select "Logical Networks"
then "New". For name, something like "public_interface", check "Enable
VLAN tagging" and for the field entry, "20". Leave defaults, such as "VM
network" checked.
3. Go to "Hosts" then "Network Interfaces" then "Setup Host Networks".
Drag "public_interface" to the physical interface, "em2". Save
configuration.
4. This shows as "public_interface" (VLAN20) with the green box VM next
to it.
5. A fresh installed VM of CentOS6.5 is used with nic1 as
"public_interface".
6. After configuring the interface "eth0" with a public IP, I am unable
to ping any public IP or hostname.
Hopefully there's a flaw in the action I took to configure it and it's a
simple fix.
was this resolved?
Thank you,
Neil
From there I have the VM installed and configured with a public IP
address, however, only get Destination Host Unreachable, meaning
it has no route out.
I am banging my head on the desk trying to figure this out. Can
anyone give me any assistance?
Thank you,
Neil
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