I have problems with my network settings host / guest on KVM with Centos 6.6 as a host and Ubuntu 14.04 as a guest. Guest OS doesn't show eth0, just l0 interface. So, I believe that there is something wrong with the virtual bridge setup.

I really need help with this.


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David Johnson, CD, MVPOwnerCommented:
1 of 2 possibilities no network adepter in the vm properties
2 you need the vm additions installed in your client to enable the adapter
pajkicoPresidentAuthor Commented:
There's a network adapter in the vm properties, and I don't see the option to install vm additions. This is a virt-manager view from Centos 6.6.
Manfred BertlManagerCommented:
In KVM (libvirt), you don't need 'vm additions'. Linux should recognize the adapter itself. You may also set the type of adapter in the config for the VM, like 'Intel e1000', which should be recognized by all OSes anyway.

When recognized, you may enter other difficulties in setting up the network... =)

Please post a 'dmesg' from your VM.
pajkicoPresidentAuthor Commented:
Manfred BertlManagerCommented:
As you can see in your screenshots, the e1000 driver is bound to eth0.
You can configure your nc now with 'system-config-network', or create the ifcfg-eth0 file for yourself. It should contain the following parameter:

BOOTPROTO=none (if not using DHCP)

With 'ifup eth0' you can then activate the interface.

edit: sorry, i just forgot, that your guest os is Ubuntu. You will not have a 'system-config-network' there.

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