Hi. On Thu, 05 Jan 2017 20:17:39 -0500 Stefan Monnier <monn...@iro.umontreal.ca> wrote:
> > But, it all changes if you replace conventional bridge with > > openvswitch, which *can* add new interfaces (ports as they call it) to > > its own bridges dynamically *and* it can be configured via interfaces(5). > > Interesting. Would it work if the IP address of the bridge is acquired > dynamically via DHCP? Yes, it should. DHCP is L4, IP is L3 and openvswitch cares about L2 mostly. > E.g. at boot, the bridge contains only eth0, but it can't get an IP > address because there's no DHCP server on that network (or maybe eth0 > is not even connected to anything yet). > > Later, someone connects an ethernet dongle that appears as usb0 and that > one should be added to br0 and since it is connected to a network that > has a DHCP server, I'd want the br0 to acquire an IP at that moment. It should be possible to obtain a single IPv4 on a bridge even in this case *if* you run dhclient on a bridge (not on the ports) the whole time. To speedup obtaining a lease you should probably restart dhclient on usb0 addition/removal. Reco
