VirtualBox and bridging lagg interface problem

[Josh Paetzel]

> On Aug 23, 2018, at 6:37 PM, Mario Lobo <lobo at bsd.com.br> wrote:
> 
> Hi there;
> 
> I posted this on Questions but decided to give it a shot here.
> 
> PC:
> FreeBSD 11.2-STABLE #0 r336831
> 16 GRam
> Intel i5 8th gen
> 
> rc.conf:
> wlans_iwm0="wlan0"
> ifconfig_wlan0="WPA powersave"
> ifconfig_re0="media 1000baseTX mediaopt full-duplex up"
> ifconfig_re0="ether f8:94:c2:26:f3:54"
> ifconfig_lagg0="up laggproto failover laggport re0 laggport wlan0 DHCP"
> wpa_supplicant_enable="YES"
> wpa_supplicant_program="/usr/local/sbin/wpa_supplicant"
> cloned_interfaces="lagg0"
> 
> OBS - tried cloning re0 MAC into wlan0 and it didn't work, so i cloned
>          wlan0 MAC into re0 and every thing worked.
> 
> ifconfig:
> re0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
>        options=80088<VLAN_MTU,VLAN_HWCSUM,LINKSTATE>
>        ether f8:94:c2:26:f3:54
>        hwaddr fc:45:96:fb:3d:82
>        nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
>        media: Ethernet autoselect (1000baseT <full-duplex>)
>        status: active
> wlan0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
>        ether f8:94:c2:26:f3:54
>        hwaddr f8:94:c2:26:f3:54
>        nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
>        media: IEEE 802.11 Wireless Ethernet DS/1Mbps mode 11g
>        status: associated
>        ssid "Seaway Airport" channel 11 (2462 MHz 11g) bssid
> 6c:70:9f:da:15:5a
>        regdomain FCC country US authmode WPA2/802.11i privacy ON
>        deftxkey UNDEF TKIP 2:128-bit TKIP 3:128-bit powersavemode CAM
>        powersavesleep 100 txpower 30 bmiss 10 scanvalid 60 protmode CTS wme
>        roaming MANUAL
>        groups: wlan
> lagg0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
>        ether f8:94:c2:26:f3:54
>        inet 10.3.51.3 netmask 0xffffff00 broadcast 10.3.51.255
>        nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
>        media: Ethernet autoselect
>        status: active
>        groups: lagg
>        laggproto failover lagghash l2,l3,l4
>        laggport: re0 flags=5<MASTER,ACTIVE>
>        laggport: wlan0 flags=0<>
> 
> With these settings, host's lagg interface works seamlessly with
> wired/wireless.
> 
> The problem:
> 
> I have several VMs on this machine. On everyone of them, their network
> interface is configured to bridged on lagg0.
> 
> If the master (re0 wired) is active, any VM has network connectivity, If I
> unplug the cable, lagg0 switches over wlan0 and the host never looses
> connectivity, BUT the VMs do!
> 
> Even if boot with the cable unplugged, the host has perfect connectivity
> but any started VM doesn' t.
> 
> I can't think of a reason why this is happening and google didn't help, so
> decided to post here and see if anybody could share any thoughts.
> 
> Thanks,
> 
> -- 
> Mario Lobo
> http://www.mallavoodoo.com.br
> FreeBSD since version 2.2.8 [not Pro-Audio.... YET!!]
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Association to an AP is done via MAC address. There’s no way to alias IPs or bridge on a WiFi network.

What you are seeing is normal and expected. Can’t bridge VMs to WiFi.

Thanks,

Josh Paetzel