Hi! Thanks for the reply and I'm sorry if my question wasn't clear enough. I have a network, let's say 192.168.0.0/24, and two servers 192.168.0.1 and 192.168.0.2. On this same network I have a wokstation, lets call it 192.168.0.100 which is running libvirt using qemu for the emultation. This workstation has a network device called br0 which has the ip address 192.168.0.100 and when I try to create an isolated network which is also on the 192.168.0.0/24 range I get an error stating that this range is already in use on the host. I need to be able to recreate an absolutely isolated network in the 192.168.0.0/24 range to be able to copy the servers 192.168.0.1 and 192.168.0.2 in here and perform the tests I need.
I hope I've been able to clarify. Thanks in advance! Best regards, Dave. Sent with [Proton Mail](https://proton.me/) secure email. On Tuesday, September 17th, 2024 at 11:07, Alvin Starr via Users <users@lists.libvirt.org> wrote: > On 2024-09-17 08:05, bd730c5053df9efb via Users wrote: > >> Hi all! >> >> I have a question about networking and haven't been able to find it online. >> I need to replicate a server installation in a host to be able to test a >> procedure but the host is on the same network as the servers so I am not >> being able to create an isolated network on the host because there is an >> interface in the same range of ip adresses. Is there any way to create this >> isolated virtual network without it conflicting with the hosts network? > > my quick guess is that you have created a copy of the VM with identical MAC > addresses for the NIC. > Each NIC on your network needs to have a unique MAC address. > > There are a few tools to generate random MAC addresses. > Grab one of these and then just change the mac address in the clone VM. > > -- > Alvin Starr || land: (647)478-6285 > Netvel Inc. || home: (905)513-7688 > al...@netvel.net > ||
