[CentOS-virt] MS-Win7 kvm guest gets dhcp from host bridge
dustymabe at gmail.com
Wed Feb 19 22:06:05 UTC 2014
On 02/19/2014 04:01 PM, James B. Byrne wrote:
> MS-Windows v7proSP1
> We have installed a MicroSoft Win7 system as a guest and have joined it to our
> MS AD domain. The system runs and has internet access. However, the IPv4
> address it obtains and the gateway it is assigned are both sourced from the
> virtual machine host system and not from our AD DC DHCP server.
> To clarify, the virbr0 IP address is 192.168.122.1 and the Windows guest has
> that address as its gateway and an IP address in the 192.168.122.0/24
> netblock. This is not as we desire as the internal addresses we regularly
> assign to MS workstations via DHCP are supposed to belong to a different
> netblock entirely. This permit filtering on incoming and outgoing traffic at
> the gateway.
> I realize that there is a DHCP service running on virbr0 for the purpose of
> provisioning guests with system control traffic but I do not know how to limit
> that to its intended purpose and allow another DHCP server to provide the IP
> address to the windows guests. I hope that problem description is not too
> Can anyone provide me with some guidance on the matter? Are kvm guests
> required to have either static ip addresses or dhcp addresses provided by the
> host system?
It sounds like what you need to do is create a bridge and then connect
your virtual machine to the bridge so that it can receive DHCP from the
external network. I assume you are using libvirt. If so, check out the
page below. It may help you get started in the right direction.
More information about the CentOS-virt