Re: [Xen-users] Xen host WiFi bridge for guest VMs

["Austin S. Hemmelgarn" <ahferroin7@xxxxxxxxx>]

On 2016-02-09 22:54, sm8ax1@xxxxxxxxxxx wrote:
> Not sure if you tried, but I've always had to enable "proxy arp" on the
> wireless interface (and the bridge possibly) to get routers to accept
> packets from the guest. I won't go into detail since there is plenty of
> information out there on the topic, but basically its a simple sysctl
> parameter, and you may need to tweak your firewall to allow MAC
> addresses to be proxied. Note that your bridge (or the host-side of the
> virtual adapter) must be assigned an IP in the same subnet as the host's
> LAN address. After that it should "just work" like a normal ethernet
> bridge. If memory serves, no special guest-side configuration is
> necessary. No idea how PEAP might interfere though. YMMV. If you still
> can't get it to work I'll try to dig up some notes I took when I set it
> up (this was on Arch).
On that note, you may need to configure your wireless adapter in AP mode 
(or run hostapd).  The fact that your wi-fi network requires actual 
authentication instead of plain encryption may also be interfering, many 
networks that are configured like that also are picky about stuff like 
MAC addresses.
I don't have much advice beyond that I can give about bridging, but I 
can say the manually configured NAT routing that I use works perfectly. 
 Of course, in my case I don't need (and in fact, don't want) external 
devices to have access to my VM's unless I specifically allow it, which 
means I only need 3 rules for the basic routing, and 1 for each 
interface I wish to use for outgoing traffic.

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