On Wednesday 2011-02-02 14:30, Guido Winkelmann wrote: >>> >>>There shouldn't be, just as long as you only filter on the source >>>address of outgoing packets, and not on the destination of incoming >>>ones. The NDP request packets go to weird multicast addresses >> >>That "weird multicast address" is just broadcast so to speak, there is >>nothing weird about it. > >Well, from what I could gather in wireshark, it's a bunch of different dst >addresses that are used for that, and which one is used appears to depend on the >address being queried... Solicited-node MC. Nothing special really, works like a limited broadcast. >Of course, if you don't have any IPv6 routers on the local net, or if they don't >send router advertisements, then the second autoconfigured address will not >exist, but then, if there is no IPv6 router, then saying the host is "using >IPv6" is a bit far fetched Autoconfiguration is not a mandatory requirement for using IPv6. -- To unsubscribe from this list: send the line "unsubscribe netfilter" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html