Re: ICMPv6 Redirects

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hi Varka,

On Mon, Sep 29, 2014 at 07:45:50PM +0530, Varka Bhadram wrote:
> 
> On Monday 29 September 2014 07:42 PM, Alexander Aring wrote:
> >On Mon, Sep 29, 2014 at 07:35:05PM +0530, Varka Bhadram wrote:
> >>On Monday 29 September 2014 07:28 PM, Alexander Aring wrote:
> >>>On Mon, Sep 29, 2014 at 02:51:51PM +0100, Simon Vincent wrote:
> >>>>Sorry for the confusion. My problem is I am receiving all packets.
> >>>>PACKET_OTHERHOST does not seem to be dropped. A suggestion from Varka was to
> >>>>disable redirects however it now seems that this is not possible on a ipv6
> >>>>interface.
> >>>>
> >>>>I can fix the problem by dropping PACKET_OTHERHOST in mac802154_subif_frame.
> >>>The first what IPv6 does is [0].
> >>>
> >>>See my previous mail. Also that we should handle on 6LoWPAN packet
> >>>handler function for receiving "lowpan_rcv" we should do the same,
> >>>otherwise we parsing PACKET_OTHERHOST sk_buff's and drop these directly
> >>>in IPv6 layer, which makes no sense.
> >>>
> >>>But what I see is that the current behaviour should also work.
> >>>Instrument the IPv6 delivery function and be sure that the information
> >>>about PACKET_OTHERHOST was not dropped.
> >>>
> >>>- Alex
> >>>
> >>>[0] http://lxr.free-electrons.com/source/net/ipv6/ip6_input.c#L72
> >>Generally Echo reply will happen at the IP Layer. But the dropping of packet is
> >>happening at IPv6 layer by as you mentioned above.
> >>
> >IP Layer == (IPv6 || IPv4)
> >
> >I don't understand what you mean. There is some code sharing between
> >IPv4 and IPv6 like neighbor discovery and ARP handling. Also for route
> >things...
> >
> I am taking about IPv6 stuff.. We need to debug from where the redirect is happening..?
> 

sorry, but the issue is that PACKET_OTHERHOST is not dropped by IPv6/6LoWPAN Layer.
We don't talking about ICMPv6 redirect messages now.

- 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




[Index of Archives]     [Linux NFS]     [Linux NILFS]     [Linux USB Devel]     [Linux Audio Users]     [Photo]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux