Re: [riot-devel] 6lowpan is not answering address ff02::2

[Martine Lenders]

Hi,

can you try with the new neighbor discovery? [1]

Cheers,
Martine

[1] https://github.com/RIOT-OS/RIOT/pull/7479

2017-09-04 20:09 GMT+02:00 Baptiste Clenet :

> Hi,
>
> I've flashed gnrc_networking on two samr21-xpro. I've noticed that
> they do not answer to router solicitation because "packet destination
> is not this host" when source address is ff02::2 (gnrc_ipv6.c)[1].
> On native, there is no problem.
> By going deeper, I saw that the address ff02::2 is not added to the
> interface because samr21-xpro uses sixlowpan (compare to native), the
> function in question is [2]
>
> So basically, when the first samr21-xpro send a router solicitation,
> nobody answers. Shouldn't the second samr21-xpro answer? What do you
> think?
>
>
> [1] https://github.com/RIOT-OS/RIOT/blob/master/sys/net/gnrc/
> network_layer/ipv6/gnrc_ipv6.c#L905
> [2] https://github.com/RIOT-OS/RIOT/blob/master/sys/net/gnrc/
> network_layer/ipv6/netif/gnrc_ipv6_netif.c#L268
> --
> Baptiste
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[riot-devel] 6lowpan is not answering address ff02::2

[Baptiste Clenet]

Hi,

I've flashed gnrc_networking on two samr21-xpro. I've noticed that
they do not answer to router solicitation because "packet destination
is not this host" when source address is ff02::2 (gnrc_ipv6.c)[1].
On native, there is no problem.
By going deeper, I saw that the address ff02::2 is not added to the
interface because samr21-xpro uses sixlowpan (compare to native), the
function in question is [2]

So basically, when the first samr21-xpro send a router solicitation,
nobody answers. Shouldn't the second samr21-xpro answer? What do you
think?


[1] 
https://github.com/RIOT-OS/RIOT/blob/master/sys/net/gnrc/network_layer/ipv6/gnrc_ipv6.c#L905
[2] 
https://github.com/RIOT-OS/RIOT/blob/master/sys/net/gnrc/network_layer/ipv6/netif/gnrc_ipv6_netif.c#L268
-- 
Baptiste
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