[ovirt-users] network issue with vm

[Daniel Helgenberger]

Hi Tiemen,

have you checked for general network setup issues? Sorry, can only guess
here.

To check oVirt I suggest to create another VM with a DHCP server.

Example: I recently had quite the same problem - it turned out the DHCP
server used the wrong gateway. Vlans where configured routed in the
switch; thus the DHCP requests reached the server while the offers were
not send back via the same gateway.

Daniel

On Fr, 2014-06-27 at 17:37 +0200, Tiemen Ruiten wrote:
> On 06/27/14 11:16, Antoni Segura Puimedon wrote:
> >
> > ----- Original Message -----
> >> From: "Tiemen Ruiten" <t.ruiten at rdmedia.com>
> >> To: users at ovirt.org
> >> Sent: Friday, June 27, 2014 10:43:03 AM
> >> Subject: Re: [ovirt-users] network issue with vm
> >>
> >> On 06/26/14 17:20, Tiemen Ruiten wrote:
> >>> Hello,
> >>>
> >>> I set up an oVirt cluster and created my first VM. However I can not
> >>> seem to get any network connectivity going. The VM is set up to receive
> >>> an IP address via DHCP. I can see the DHCP request come in on the
> >>> DHCP-server, but subsequently, the offer is lost somewhere. Even when I
> >>> configure a fixed IP, I can not ping any host but the VM itself and the
> >>> IP in the same VLAN on the hypervisor. My network settings are in the
> >>> attachment (output of sudo vdsClient -s localhost getVdsCaps > caps.txt
> >>> on the hypervisor). Is there something I should configure on the switch
> >>> maybe (it's a Cisco 3560G)?
> > bonding mode 4 which is the most natural choice, requires configuration of the
> > switch ports for lacp.
> >
> 
> Why is it the most natural choice? On
> http://www.gluster.org/community/documentation/index.php/Network_Configuration_Techniques
> mode 6 is recommended. My storage domain is type GlusterFS. Mode 6 is
> not an option in the oVirt interface though.
> 
> Anyway, since the traffic seems to go out from the VM interface, through
> the hypervisor bridge+bond and the switch and arrives at the
> DHCP-server, could this really be an issue with LACP? What else can I try?
> 

-- 

Daniel Helgenberger 
m box bewegtbild GmbH 

P: +49/30/2408781-22
F: +49/30/2408781-10

ACKERSTR. 19 
D-10115 BERLIN 


www.m-box.de  www.monkeymen.tv 

Geschäftsführer: Martin Retschitzegger / Michaela Göllner
Handeslregister: Amtsgericht Charlottenburg / HRB 112767 
-------------- next part --------------
A non-text attachment was scrubbed...
Name: smime.p7s
Type: application/x-pkcs7-signature
Size: 4380 bytes
Desc: not available
URL: <http://lists.ovirt.org/pipermail/users/attachments/20140627/d2332638/attachment-0001.bin>