On 05/05/16 05:42, Gregory Nowak wrote: > On Thu, May 05, 2016 at 02:54:11AM +0000, Jacob, Raymond A Jr. CIV > SPAWARSYSCEN-ATLANTIC, 59530 wrote: >> >> Q. How do I generate guest MAC addresses with the same manufacturer HW >> address as the Host? > A. You should be aware that if you put the guest(s) on the same > network as the host, you will run into weird problems if the guest(s) > have the same mac as the host. If you really want to do this, the best > way I can think of is to extract the host's mac from the > ifconfig/ipconfig output (you don't say what OS the host runs), and > feed it into vboxmanage something like: > > vboxmanage modifyvm vmname --macaddress<x> mac > > where x is the number of the guest interface you want to set the mac > for, and where mac is the new mac address. If the host runs gnu/linux > or some other unix, this should be doable by using grep and cut on the > output from ifconfig, and feeding that into vboxmanage as I described > above. > > Greg > > I think the OP only wants the manufacturer prefix to be the same: in that case can't you let the program generate the MAC address for you and just paste the first bit from your host MAC address over the generated MAC? I guess there could be collisions with other VMs but if the random generator is good they should be rare...
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