No IP in Bridged Adapter with Wi-Fi (Airport)

[tmcsys]

My only network is Wi-Fi.

There is no IP in the guest.

VirtualBox:

Version 6.0.18 r136238 (Qt5.6.3)

Guest:

OS Product: Linux
OS Release: 3.16.0-6-amd64
OS Version: #1 SMP Debian 3.16.56-1+deb8u1 (2018-05-08)
/opt/VBoxGuestAdditions-6.0.18/sbin/VBoxServiceGuest Debian 3.16.0-6-amd64

Host:

OSX 10.11.6
Model Name iMac

eth0  Link encap:Ethernet  HWaddr 08:00:27:60:34:71  
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

[tmcsys]

My defect report was apparently premature.

The Bridged Adapter is working. The only issue is that the DHCP IP is changing too frequently. I will look into assigning a static IP.

The key was that I had misconfigured the Bridged Adapter. I had originally unchecked the "Cable Connected" box, which effectively tells the VM that there is no network connected. No wonder there was no IP.

Compare original non-working Adapter.jpg configuration with working BridgedAdapter.jpg.

From the manual:

6.2 Introduction to Networking Modes

• Not attached. In this mode, Oracle VM VirtualBox reports to the guest that a network card is present, but that there is no connection. This is as if no Ethernet cable was plugged into the card. Using this mode, it is possible to “pull” the virtual Ethernet cable and disrupt the connection, which can be useful to inform a guest operating system that no network connection is available and enforce a reconfiguration.