In the last episode (Nov 04), Aryeh Friedman said: > There seems to be a very high rate of MAC address collisions when tap is > running on different machines.... is there anyway to make the selection > of MAC more random
It looks like it's generated based on the number of ticks since boot, plus the unit number of the tap device: http://fxr.watson.org/fxr/source/net/if_tap.c#L434 So if you have devices created on boot on a bunch of machines, chances are high that you'll get conflicts. Maybe instead of using the 'ticks' value, kern.hostid could be used instead? That has much better randomness than 'ticks'. -- Dan Nelson dnel...@allantgroup.com _______________________________________________ freebsd-virtualization@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-virtualization To unsubscribe, send any mail to "freebsd-virtualization-unsubscr...@freebsd.org"
