I've been meaning to bring this up. A lot of cards that support multiple MAC addresses in hardware provide pre-cooked lists of alternate MAC addresses. This is either done via EEPROM, NVRAM, or OpenFirmware device properties.
For example, the Sun Neptune cards can provide an array of up to 16 alternate MAC addresses per-port. We should provide a way to export these lists to userspace. Perhaps an ethtool thing, Jeff? Once we have this, virtualization implementations can probe for and use them. Currently they have no way to discover these things so probably they just generate their own using some algorithm. - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html