On Mon, Sep 29, 2014 at 01:53:51PM +0200, Alexander Aring wrote: > On Mon, Sep 29, 2014 at 05:15:51PM +0530, Varka Bhadram wrote: > > On 09/29/2014 05:05 PM, Varka Bhadram wrote: > > >On 09/29/2014 04:39 PM, Simon Vincent wrote: > > >> > > >>On 29/09/14 11:58, Varka Bhadram wrote: > > >>>Simon, > > >>> > > >>>On 09/29/2014 03:50 PM, Simon Vincent wrote: > > >>>>Currently there does not seem to be any filtering in the mac layer > > >>>>anyway. In wpan.c mac802154_subif_frame we check the pan id and dest > > >>>>address but we don't discard any packets. Should we be discarding > > >>>>packets at this point? For example packets of type PACKET_OTHERHOST. > > >>>> > > >>>>If I discard all PACKET_OTHERHOST in mac802154_subif_frame it solves > > >>>>my problem. I just don't know if this will effect anything else. > > >>>> > > >>>I think we are not supposed to discard the packets like this. This will > > >>>create the problems if routing enabled on the node. > > >>> > > >>>This not problem with the IEEE-802.15.4 driver or MAC implementation. > > >>> > > >>>These issues related to IPv6/ICMPv6 (ECHO request and ECHO reply). > > >>>Here RFC2461/RFC4861 will > > >>>come into picture. see:http://www.tahi.org/logo/phase2-core/result/Self_Test_4-0-3/freebsd71.router/nd.p2/ > > >>> > > >>>Can you explain the setup..? What h/w you are using. How the network > > >>>connected..? > > >>> > > >>I am running three nodes all directly connected to each other via > > >>powerline networking running 802.15.4. > > >>Therefore all nodes can see all the traffic. The nodes are setup with > > >>ipv6 forwarding enabled. > > >>If I ping node A from node B node C sends ICMP redirects. > > >Please add: > > > > > >net.ipv6.conf.all.accept_redirects = 1 > > >net.ipv6.conf.all.send_redirects = 1 > > > > > >to your//etc/sysctl.conf/ file.. It will disable redirect.. > > > > > >Try this . I hope it will work. > > > > Sorry for the wrong info... > > > > Set up accept_redirects/send_redirects to boolean value '0' > > > > echo 0 > /proc/sys/net/ipv6/conf/all/accept_redirects > > > > don't know but I think this is only if we send or accept the route > ICMPv6 messages. You only configure some filtering if you get these > ICMPv6 messages or not, or if you send these ICMPv6 messages. > ah yes and this also make handling of these ICMPv6 messages or not. But Simon, did some dropping of skb's when these are PACKET_OTHERHOST, and then it works for him. So this should some other issues, because IPv6 should drop all sk_buff's which are PACKET_OTHERHOST. Which should be the same like dropping PACKET_OTHERHOST in mac802154. - Alex -- To unsubscribe from this list: send the line "unsubscribe linux-wpan" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
