Complete network simulation that works properly already exists at http://clownix.net I know it is long to download and unzip, but give it a chance to dazzle you. Vincent Perrier
lanas wrote: > Le Samedi, 9 Février 2008 14:41:09 -0500, > lanas <[EMAIL PROTECTED]> a écrit : > > >> Does this general understanding of the basic UML networking makes >> sense: the UMLs do not communicate between each other. They >> communicate with their tun/tap devices which have instances on the >> host. On the other hand these host instances do communicate >> together. If this is right, I do not see how multicast would work if >> no additional interface is created on the host. But then I might be >> wrong. >> > > OK, it's explained later in the book. mcast uses a form of IPC. > > What I'd like to attain, is a virtual UML network for testing > networking situations. With TUN/TAP I've seen that bringing down the > ethx interfaces of a routing UML2 will not affect UML1 and UML3 and both > 1 and 3 will be able to ping themselves even though the UML2 router in > the middle that was making the forwarding has seen both its ethx > interfaces put down. > > In such a case the host interfaces/routing have to be adjusted. While > this could be a viable solution, it can be error prone when testing > anything more complex than a simple VRRP setup. > > I hope that with multicast - once it works - I will be able to only > deal with UML networking configs to simulate network setups and > failures. > > Cheers, > > Al > > ------------------------------------------------------------------------- > This SF.net email is sponsored by: Microsoft > Defy all challenges. Microsoft(R) Visual Studio 2008. > http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ > _______________________________________________ > User-mode-linux-user mailing list > User-mode-linux-user@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/user-mode-linux-user > ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ User-mode-linux-user mailing list User-mode-linux-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-user
