[riot-devel] BorderRouter: Global IPV6 address lost in ncache after UDP message sent

Oleg Hahm oliver.hahm at inria.fr
Tue Aug 30 16:17:33 CEST 2016


Hi,

is it only me who cannot find it or is there something missing here?

Cheers,
Oleg

On Tue, Aug 30, 2016 at 04:10:19PM +0200, Martine Lenders wrote:
> Hi Baptiste,
> 
> 
> 2016-08-30 16:01 GMT+02:00 Baptiste Clenet <bapclenet at gmail.com>:
> > Thanks Martine,
> > The issue you mentioned seems to be different.
> >
> > Did you see the neighbor discovery implementation of OpenThread? How
> > your new implementation will be able to dicuss with OpenThread
> > implementation?
> >
> > Cheers,
> >
> > 2016-08-29 19:56 GMT+02:00 Martine Lenders <mail at martine-lenders.eu>:
> >> Hi,
> >> can you check if this is https://github.com/RIOT-OS/RIOT/issues/5467?
> >>
> >>> Why or how can a node be removed from ncache? Why the node does not
> >> automatically reconnect with BR?
> >>
> >> As the implementer of the neighbor discovery I can say this: because
> >> the neighbor discovery is sh** ;-). It was written in a haste and has
> >> a lot of design flaws. I'm working on a replacement (see
> >> https://github.com/RIOT-OS/RIOT/issues/5704, happy to hear your
> >> thoughts ;-)), but sadly I did not find some time to put heavy
> >> implementation efforts into this yet (hopefully in autumn though, so
> >> we have something for the October release, fingers crossed).
> >>
> >> Thanks for reporting and kind regards,
> >> Martines
> >>
> >> 2016-08-29 17:54 GMT+02:00 Baptiste Clenet <bapclenet at gmail.com>:
> >>> Hi,
> >>> I'm using two SAMR21, one with BR (on A) and the other (on B) with
> >>> gnrc_networking example.
> >>> I'm on April release.
> >>> Switch on A (border router) then switch on B, I'm able to send UDP
> >>> message from Linux to 2001:db8 address of B.
> >>> If I try to send lot of data (every 100ms), it works for a while and
> >>> then B does not receive message anymore. After I see it failed, I
> >>> stopped the loop sending UDP message, I checked on BR and 2001:db8
> >>> address of B was not here anymore. I can ping B with fe80:: address on
> >>> iface 6 but can't with 2001:db8.
> >>>
> >>> Why or how can a node be removed from ncache? Why the node does not
> >>> automatically reconnect with BR?
> >>>
> >>> Cheers
> >>>
> >>> --
> >>> Baptiste
> >>> _______________________________________________
> >>> devel mailing list
> >>> devel at riot-os.org
> >>> https://lists.riot-os.org/mailman/listinfo/devel
> >> _______________________________________________
> >> devel mailing list
> >> devel at riot-os.org
> >> https://lists.riot-os.org/mailman/listinfo/devel
> >
> >
> >
> > --
> > Baptiste
> > _______________________________________________
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-- 
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