[CentOS-virt] Networking in KVM
philwyett at irregulars-engineering.com
Fri Mar 18 17:21:39 UTC 2016
On Fri, 2016-03-18 at 13:02 -0400, Mike - st257 wrote:
> On Thu, Mar 17, 2016 at 5:47 PM, Digimer <lists at alteeve.ca> wrote:
> On 17/03/16 04:47 PM, paul.greene.va at verizon.net wrote:
> > Thanks, I followed the 2nd article, and it got the existing
> > machines communicating with each other.
> Right, so your VMs are on the same bridge group now (at Layer2 of
> > However, any new virtual machines I created after making the
> > can't communicate with anything, they can't even get out to
> > internet, even if I manually set the IP address info. Any
> suggestions on
> > that?
> > Paul
> Have you verified connectivity to the VMs' default gateway?
> Does the ARP (address resolution protocol) process succeed?
> arp -a | grep <Default_Gateway_IP_here>
> You may not have a NIC connected to your physical network in that
> bridge group.
> If so you need to modify your network-scripts to make that happen
> automatically on boot.
> You do not necessarily need an IP address on your bridge interface
> unless the VM host is acting as a router (default gateway).
> Here's an example:
> ~]# cat /etc/sysconfig/network-scripts/ifcfg-XX_br0
> You can temporarily add an interface to the bridge group for testing
> purposes though.
> brctl addif <bridge> <interface>
> Check that they're using your static bridge. 'virsh dumpxml
> <vm>' will
> have a section like:
> <interface type='network'>
> <mac address='52:54:00:71:20:fa'/>
> <source network='bcn_bridge1' bridge='bcn_bridge1'/>
> <target dev='vnet2'/>
> <model type='e1000'/>
> <alias name='net2'/>
> <address type='pci' domain='0x0000' bus='0x00'
> That tells you that the interface is MAC '52:54:00:71:20:fa'
> is "plugged
> in" to the bridge 'bcn_bridge1'. If that doesn't connect to
> the right
> bridge, then you need to change it (virt-manager has a simple
> to use GUI
> for this, or you can use 'virsh edit <vm>' if you're
> comfortable editing
> An additional command to run to verify your Ethernet bridge(s)
> operation is:
> brctl show
> brctl show <bridge>
> ~]# brctl show XX_br0
> bridge name bridge id STP enabled interfaces
> XX_br0 8000.00151713fdbc no p1p1
> // SilverTip257 //
> CentOS-virt mailing list
> CentOS-virt at centos.org
You need to look at the requirements for this package. If I spin a build
of that SRPM in mock I get:
Error: No Package found for aubio-devel >= 0.3.2
Error: No Package found for cwiid-devel >= 0.6.00
Error: No Package found for itstool >= 2.0.0
Error: No Package found for jack-audio-connection-kit-devel >= 1.9.10
Error: No Package found for libgnomecanvasmm26-devel >= 2.16
Error: No Package found for liblo-devel >= 0.24
Error: No Package found for liblrdf-devel >= 0.4.0
Error: No Package found for libltc-devel >= 1.1.1
Error: No Package found for lilv-devel >= 0.14.0
Error: No Package found for lv2-devel >= 1.0.0
Error: No Package found for rubberband-devel >= 1.0
Error: No Package found for serd-devel >= 0.14.0
Error: No Package found for sord-devel >= 0.8.0
Error: No Package found for sratom-devel >= 0.2.0
Error: No Package found for suil-devel >= 0.6.0
I have only checked the first, but aubio is neither in CentOS nor EPEL.
Thus the failure.
-------------- next part --------------
A non-text attachment was scrubbed...
Size: 836 bytes
Desc: This is a digitally signed message part
More information about the CentOS-virt