On 26/06/2012 20:56, Johannes Berg wrote: > On Tue, 2012-06-26 at 20:55 +0200, Antonio Quartulli wrote: > >> @johannes: de-duplication? IBSS/RSN assumes that each node runs an authenticator >> and a supplicant. Does this mean that we need exactly two 4-way handshakes? Why >> should we have a "winner"? > I may misremember, I thought we didn't need two handshakes. But maybe we > do, and just throw away one of the PTKs? You need two handshake because you need two GTK. And if multicast doesn't work, then ARP/ND fails, and no unicast traffic will take place. The PTK from the authenticator with the highest MAC address wins, but the other handshake is still needed so the highest MAC address STA can get the lowest MAC's GTK. -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
