From: Alexander Aring <alex.aring@gmail.com>
To: Simon Vincent <simon.vincent@xsilon.com>
Cc: linux-wpan@vger.kernel.org
Subject: Re: multicast problems
Date: Mon, 20 Oct 2014 19:24:38 +0200 [thread overview]
Message-ID: <20141020172435.GA31180@omega> (raw)
In-Reply-To: <5444F889.5010600@xsilon.com>
Hi Simon,
On Mon, Oct 20, 2014 at 12:56:57PM +0100, Simon Vincent wrote:
> Has anyone had any luck using Site-Local or Realm-Local multicast over
> 14.5/6lowpan?
>
> I find if I subscribe to a multicast group using a site-local or realm-local
> scope I can't ping the multicast group. If I try the same on a ethernet
> interface I can ping the multicast group no problems.
mhh, did you also tried it without the overwritten pkt_type value
PACKET_HOST? Just drop it in 802.15.4 6LoWPAN for testing case.
Maybe, you hit the problem at [0].
This occurs when "Type 131 - Multicast Listener Report" arrived. [1]
Don't know much about Multicast Listener Report at the moment and if this
is really necessary for your use case.
Just give it a try. It's something with multicast and I know there is
some issue right now.
- Alex
[0] http://lxr.free-electrons.com/source/net/ipv6/mcast.c#L1426
[1] http://www.iana.org/assignments/icmpv6-parameters/icmpv6-parameters.xhtml#icmpv6-parameters-codes-9
prev parent reply other threads:[~2014-10-20 17:24 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-20 11:56 multicast problems Simon Vincent
2014-10-20 17:24 ` Alexander Aring [this message]
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