On Thu, March 13, 2014 15:49, Reindl Harald wrote: > > > Am 13.03.2014 20:43, schrieb James B. Byrne: >> CentOS-6.5 >> >> We have a KVM guest running MS-WinV7pro. This guest is joined to an Active >> Directory Domain. That domain provides DHCP to the members. The KVM guest >> does not obtain its IP from the domain but from the local host's qemu >> hypervisor instead. >> >> Is there anyway to get around this and have the guest MS-Win OS get its DHCP >> from the same place as the rest of the domain members? > > smells like you are using NAT for your guest instead > bridge it to the host network, the guest does not > know from where it gets DHCP infos and there should > not be more than one dhcpd on a network segment, anything > else leads to race-conditions - the faster dhcpd wins > > http://www.dedoimedo.com/computers/kvm-bridged.html > > maybe the article is outdated, try google as i did > https://www.google.at/search?q=kvm+nat+versus+bridging > > Yes, that was it. Apparently if one creates a kvm guest via the virt-manager gui application then NAT is automatically selected as the default. It may be that the other guests were originally hand-crafted via virsh and the br0 interface was specified for them, but I doubt that. I have been using virt-manager since day one on this project and I am getting a queasy feeling that virt-manager's behaviour has obscurely changed in significant ways since I first began using it. This is not the first problem that I have had creating new guests with recent versions of virt-manager which were not in evidence with earlier use. In any case, to fix this via virt-manager's __virtual hardware details__ interface one must select the __NIC__ and change the settings from <Virtual network default 'NAT'> to <Specify shared device name> and then input the bridge interface name <br0> in the text box that subsequently appears. One must also change the Device model: from <Hypervisor default> to <virtio>. Thanks for the pointer. -- *** E-Mail is NOT a SECURE channel *** James B. Byrne mailto:ByrneJB@xxxxxxxxxxxxx Harte & Lyne Limited http://www.harte-lyne.ca 9 Brockley Drive vox: +1 905 561 1241 Hamilton, Ontario fax: +1 905 561 0757 Canada L8E 3C3 _______________________________________________ CentOS-virt mailing list CentOS-virt@xxxxxxxxxx http://lists.centos.org/mailman/listinfo/centos-virt
