Re: [nemo] About Test Specification in IPv6 Ready Logo

[RYUJI WAKIKAWA <[e-mail]>]

Hi Alex,

On 2006/11/27, at 21:31, Alexandru Petrescu wrote:

> Keiichi SHIMA wrote:
>> On 2006/11/25, at 13:29, Keiichi SHIMA wrote:
>>>>> So, even in the case 2, we can put a routing entry for the  
>>>>> mobile network prefix by not using any routing protocol.
>>>> Please teach the method of not using routing protocol. Is there
>>>>  draft or RFC ?
>>> Since a mobile node knows its mobile network prefix, it can  
>>> install a routing entry for it after it receives a binding ack  
>>> message.  The home agent of the mobile node will know the mobile  
>>> network prefix stored in a binding update message from the mobile
>>>  node, it can also install a routing entry when it receives the  
>>> binding update message.
>> Some more minor additional notes...
>> The above example is for the explicit mode.  And if we use implicit
>>  mode, then these two entities already know what to do when  
>> registration completes.  So either using a dynamic routing or not  
>> is just a configuration issue for route management and it has  
>> nothing to do with the network model.
>
> I think it is not right for HA to add a routing table entry upon
> reception of MNP in the HA.  IT should add it in the binding cache,
> not in routing table.
>
> The routing table is a data structure touched by other independent
> software (ifconfig add, route add, routing daemon read).

This is totally implementation issue.
For example, on some of implementation, ND information is managed in  
a routing table.

> If MIP6-nemo software adds a routing table entry usually it has no way
> to trigger the routing daemon that reads that routing table.  The
> routing daemon reads the routing table only once (when it starts up),
> creating other internal routing tables.  If mip6-demo adds an entry in
> the kernel routing table then that will not be seen by the routing
> daemon.  Which is bad.

Hmm,,, this is your routing daemon IMPLEMENTATION issue.
There is a program to catch a trigger of routing changes after it  
starts up.

ryuji

> That's why I think the routing table entries between MR and HA must be
> there prior to starting up the mip6-nemo software.  This is normal in
> a way: if the MR is at home, we want the HA to still route packets
> towards LFN, although no BU is sent.
> Alex
>
>> # if I'm not missing something.
>> --- Keiichi SHIMA IIJ Research Laboratory <[e-mail]> WIDE
>>  Project <[e-mail]>
>
>