mjhjmtu

I'm trying to set up a virtual machine with a Linux Mint 18.3 host and Win10 x64 guest.

I need this VM accessible from my network. Unfortunately, snaking an Ethernet cable into my room is not an option, and my wifi's chipset (BCM4360) does not support WDS (sudo iw dev wlp6s0 set 4addr on gives an error). So I can't create a real bridge.

I've spent the past 3 days trying a variety of solutions, attempting to get this to work. The best solution I've found so far puts the VM behind a NAT, but at least the VM is able to ping other machines on the network and I get virtio performance gains. https://bbs.archlinux.org/viewtopic.php?id=207907

Unfortunately, this makes my VM invisible to the rest of the network.

I've tried using this: https://wiki.debian.org/BridgeNetworkConnections#Bridging_with_a_wireless_NIC

But far as I am able to tell, ebtables hasn't done anything.

I also tried using parprouted as described here:
https://wiki.debian.org/BridgeNetworkConnectionsProxyArp

However it doesn't seem to work even though the description says

"Reboot, and hosts connected to the bridge's ethernet should acquire a
DHCP address and have full IP connectivity!"

So maybe I just don't have this hooked up right in my VM config?

Options:

1) Does your BCM4360 support two stations at once? (Look at valid interface combinations in iw phy). If yes, make a second station and pass the network interface through to the VM.

2) If you can control your router (via OpenWRT etc.), try a tunnel for a second network interface. You'll need to add the tunnel endpoint to the LAN/WLAN client bridge on the router.

3) If none of these work, and as you don't have four-address-mode, keep in mind that in this case the wifi interface will only work with a single MAC address. Which means you either connect the host to the network, or the VM guest, but not both.

If you can live with the host not being visible on the network, have a look at wlan_kabel. It uses a raw socket to basically steal all packets from the host, and pass it on to some other interface.

I tried proxy arp once, but never got it working properly.

4) If you really need both the host and the VM on the network, I'd think buying a cheap WLAN dongle would be simplest option.