Am 24.01.2011 15:35, schrieb Mario 'BitKoenig' Holbe: > On Mon, Jan 24, 2011 at 02:46:57PM +0100, Patrick McHardy wrote: >> On 23.01.2011 13:21, Mario 'BitKoenig' Holbe wrote: >>> Without marking everything runs as it should be. >>> Marking eth0 packets results in all advertisements transmitted via eth1. >>> The behaviour goes back to normal as soon as the marking disappears. >>> I also tried marking with 0xff00 instead of 1 - same results. >> That probably means that we're not using the correct keys >> when rerouting in ip6_route_me_harder(). Just for testing, >> please try to disable the ip6_route_me_harder() call in >> net/ipv6/netfilter/ip6table_mangle.c::ip6t_mangle_out(). > > Yes, disabling the ip6_route_me_harder() call in ip6t_mangle_out() > results in the advertisements being transmitted on the correct > interfaces Thanks. The problem appears to be that ip6_route_me_harder() only uses the socket's oif for the route lookup when the socket is bound to an interface, but radvd uses IPV6_PKTINFO to specify the outgoing interface. I guess netfilter shouldn't be overriding IPV6_PKTINFO, but we unfortunately have neither an indication of this nor the original route lookup keys available at the time the packet is rerouted. -- To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
