On Fri, 10 Mar 2006, Julius Schwartzenberg wrote: > I was wondering if it was possible to have multiple UMLs share a single > tap device. My goal is to have one subnet on tap0 in which all the UMLs > are too, so you get one big virtual ethernet network.
I doubt it's possible, since each UML needs its own IP address and a shared interface wouldn't know which guest to send packets to. The tunnel driver can spawn arbitrarily many tun/tap devices at little cost; if you can create one, you can create ... I actually don't know the upper bound, but it must be at least 16 and it might even be a module parameter if you need to raise the limit. The host (configured as a router) will do the virtual Ethernet thing as its default behavior. With many guests on one host, remember that the CPU is shared, and if several guests get CPU-intensive at the same time their individual performance will drop off. Also UMLs take a lot of memory; be sure there's enough. James F. Carter Voice 310 825 2897 FAX 310 206 6673 UCLA-Mathnet; 6115 MSA; 405 Hilgard Ave.; Los Angeles, CA, USA 90095-1555 Email: [EMAIL PROTECTED] http://www.math.ucla.edu/~jimc (q.v. for PGP key) ------------------------------------------------------- This SF.Net email is sponsored by xPML, a groundbreaking scripting language that extends applications into web and mobile media. Attend the live webcast and join the prime developer group breaking into this new coding territory! http://sel.as-us.falkag.net/sel?cmd=lnk&kid=110944&bid=241720&dat=121642 _______________________________________________ User-mode-linux-user mailing list User-mode-linux-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-user
