[support] HA and MR are unable to recognize NEMO packet

[Romain KUNTZ]

Hello,

On 2007/10/22, at 18:03, sazzadur rahman wrote:

> I was struggling implementing NEMO (http://www.nautilus6.org/doc/ 
> nepl-howto/). I am using kernel 2.6.21.3 on Fedora Core 6 for both  
> HA and MR. I could install the kernel along with the patches and  
> user land application as described by the above HOWTO. Before  
> handoff, I could reach every node from every other node (LFN, HA,  
> MR, Router etc.). But after handoff, I observed that HA doesn't  
> recognize Binding Update packet sent from MR and MR gets and ICMP  
> (cause 3: port unreachable) from HA.
>

Looking at the HA logs, it seems that your HA does not process  
correctly the received BU. It looks like a known bug, that is fixed  
in one of the patches included in the Howto. Did you correctly apply  
the patch mipv6-daemon-umip-0.3-20070613.patch before applying the  
NEPL patch?


> On the contrary, when I ping6 to HA from MR, HA replies it with  
> Binding Error to MR
>
This is because the MR is not registered to the HA but sends packets  
with Home Address option in it. This will be fixed once your MR  
correctly registered to the HA.


> and this time, MR doesn't recognize Binging Error NEMO packet and  
> replies ICMP to HA.
>

Do you have any log messges on the MR for this? Anyway, this may be  
due to the previous errors, so let's first try to fix the first problem.

Regards,
romain