On Sun, 2007-23-12 at 22:04 +0900, YOSHIFUJI Hideaki / 吉藤英明 wrote: > If the secondary MACs are used with ARP/NDP, we should take care of > that, but I think we use the primary MAC for ARP/NDP, no? > (In other words, we always use primary MAC for ARP reply / NA, no?)
I think it maybe a policy decision; In the IPV4 case, where the system owns the IP addresses for the classical scenario where there is a single MAC address per ethx then we always respond with MAC address of ethx wherever the arp request was received from. I think it is different in the case of IPV6 where the eth device owns the IP address, no? i.e is that where you are drawing the concept of primary MAC? The case of multiple MACs per interface requires further policy resolution IMO. It would be nice to be able to tell the kernel which MAC to use when responding for which ip address it owns. This can be then easily mapped to the routing table src address selection. Patrick? cheers, jamal -- 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
