2015-11-14 16:43 GMT-03:00 Gordon Messmer <gordon.messmer at gmail.com>: > On 11/14/2015 09:20 AM, Sergio Belkin wrote: > >> I'd want to connect a VM to another VM (or eventually to the host) via the >> "Linux bridge" so that I can demonstrate that capability in a classroom >> with only one laptop. >> > > You don't actually need to attach *any* ethernet interfaces to do that. > If you create a bridge with no Ethernet slaves, and then create two VMs, > those VMs will get virtual network interfaces that will then be slaved to > the bridge. So, you'll see the bridge with two network devices as slaves, > and those network devices will be attached to the two VMs. > > If you create a bridge device with one Ethernet interface attached, then > you'll end up with a bridge that spans two VMs and the Ethernet interface. > That way the VMs will be connected to each other and to the Ethernet > network. > > _______________________________________________ > Are you talking bearing in mind VirtualBox? I've created a bridge on the host machine, and 2 VM's but br0 has no slaves: [sergio at hope share]$ sudo brctl show br0 bridge name bridge id STP enabled interfaces br0 8000.000000000000 no Greets -- -- Sergio Belkin LPIC-2 Certified - http://www.lpi.org