Bridging wireless nic for kvm guests

Tyler J. Wagner tyler at
Tue Dec 23 23:53:01 UTC 2014

By "wireless bridging", you intend to bring up multiple MAC addresses on
the interface, one for the host and one for each VM. That simply won't work
on many wireless chipsets, which won't allow multiple MAC addresses.

You'll need to use one of:

1. A physical Ethernet interface.

2. A software bridge for the VMs, with routing in the host, and NAT.

If you can't use #1, then use #2 and put multiple IPs on the host's
wireless interface. Then NAT each one using DNAT/SNAT firewall rules to a
VM using an internal IP on the software bridge.


On 2014-12-23 13:45, C. L. Martinez wrote:
> it seems it is not possible ... Am I right??
> On Mon, Dec 22, 2014 at 10:30 AM, C. L. Martinez <carlopmart at> wrote:
>> Hi all,
>>  I am trying to setup a bridge with a wireless nic (USB) only. I have
>> followed the following steps:
>>, but it doesn't works
>> in my ubuntu server 14.04.
>>  How can I bridge a wireless usb nic for kvm guests?? I need to use
>> this bridge fro three guests. For this reason, I can't use usb
>> passthrough.
>>  Thanks.

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