SilverTip257 <silvertip257 at gmail.com> writes: > On Fri, Jun 13, 2014 at 8:42 AM, lee <lee at yun.yagibdah.de> wrote: > >> Peter <peter at pajamian.dhs.org> writes: >> >> > On 06/12/2014 05:17 PM, lee wrote: >> >> I knew before I started that network setup would be a PITA because years >> >> ago, I set up a VM for someone who didn't have a 64bit system to compile >> >> a 64bit version of some software. The network setup being so >> >> ridiculously difficult has kept me from touching VMs ever again for >> >> years. It's just too difficult and not worth the effort unless you're >> >> really forced to do it. >> > >> > Networking can be confusing until it "clicks" then it all seems to fall >> > into place, there is a certain amount of understanding of the overall >> > picture of how bridge networking (or other types of networking) works >> > that once you get that understanding it becomes a lot simpler. >> >> I still don't really understand it. For example, why does the dom0 >> loose network connectivity when you add the physical interface through >> which it is connected to the network to a bridge? The bridge supposedly >> connects networks indiscriminately, and it is illogical that the >> connection goes away when you connect a network to it. >> > > Knowledge of what a network bridge would help you clarify that question.  > When you hook an interface to a Linux bridge the interface cannot be used > for anything else . That is why IP addresses are instead placed on the > bridge interface . I never came across information like that. I was trying to get network access for VMs to work, and that is just way too difficult. > I prefer to segregate management and VM physical interfaces. One interface > is strictly used for managing the virtualization node and the other(s) are > for VMs. Those others could be hooked to different Linux bridges (cabled > to your physical switch) or bonded together. I do not have (nor need) IP > addresses on bridges with my set up. But when you attach them to bridges and don't have IP addresses on the bridges, then they are unreachable. -- Knowledge is volatile and fluid. Software is power.