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<div class="moz-cite-prefix">On 12/31/2013 3:02 AM, Sander
Grendelman wrote:<br>
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cite="mid:CAHa6cRT-j7Gkf-74+YqJExTR77_jfXm+fZqKB4XxvT7PDTax9g@mail.gmail.com"
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<div class="gmail_quote">On Mon, Dec 30, 2013 at 7:57 PM, Neil
Schulz <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:neil.schulz@neteasy.us" target="_blank">neil.schulz@neteasy.us</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left:1px solid
rgb(204,204,204);padding-left:1ex">I'm not very
knowledgeable in VLANs. Sorry for the lack of knowledge in
advance.<br>
<br>
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.<br>
<br>
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)<br>
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<div>Assigning an IP-address to a VM network in oVirt is
_not_ mandatory,<br>
it is only needed for "management" networks (ovirtmgmnt,
display, storage)<br>
where the _hosts_ need connectivity to resources on that
network.<br>
<br>
Is this a tagged or an untagged vlan? (an untagged vlan
means only one vlan<br>
per physical interface andneeds no extra configuration on
the OS side)<br>
Which other (physical) interfaces are in your "br1"
interface?<br>
Are the (tagged) vlans assigned to this interface?<br>
<br>
</div>
<div>A vlan interface on linux looks like this: "eth0.20"
where eth0 is the<br>
"physical" interface on which tagged vlans are configured
and 20 is the<br>
number of one of those interfaces.<br>
<br>
</div>
<div>In the case of an oVirt VM network the physical
interface is bridged (and sometimes bonded)<br>
</div>
<div>so the interface configuration looks like this:
"br1.20".<br>
</div>
<div><br>
</div>
<div>The "normal" route for configuring a new network in
ovirt is to configure it in the "networks" tab<br>
(as a VM network) and then assigin this network to
physical- or bonded interfaces on all the<br>
hosts in your cluster.<br>
</div>
<div><br>
</div>
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</blockquote>
So the steps I have taken to create this.<br>
1. Assign the 2nd physical interface a static IP.<br>
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.<br>
3. Go to "Hosts" then "Network Interfaces" then "Setup Host
Networks". Drag "public_interface" to the physical interface, "em2".
Save configuration.<br>
4. This shows as "public_interface" (VLAN20) with the green box VM
next to it.<br>
5. A fresh installed VM of CentOS6.5 is used with nic1 as
"public_interface".<br>
6. After configuring the interface "eth0" with a public IP, I am
unable to ping any public IP or hostname.<br>
<br>
Hopefully there's a flaw in the action I took to configure it and
it's a simple fix.<br>
<br>
Thank you,<br>
Neil <br>
<br>
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cite="mid:CAHa6cRT-j7Gkf-74+YqJExTR77_jfXm+fZqKB4XxvT7PDTax9g@mail.gmail.com"
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<br>
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.<br>
<br>
I am banging my head on the desk trying to figure this
out. Can anyone give me any assistance?<br>
<br>
Thank you,<br>
Neil<br>
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</blockquote>
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<br>
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