Re: [Autoconf] new charter

HyungJin Lim <dream.hjlim@gmail.com> Fri, 27 February 2009 14:45 UTC

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Date: Fri, 27 Feb 2009 23:45:43 +0900
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From: HyungJin Lim <dream.hjlim@gmail.com>
To: Alexandru Petrescu <alexandru.petrescu@gmail.com>
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Subject: Re: [Autoconf] new charter
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2009/2/27 Alexandru Petrescu <alexandru.petrescu@gmail.com>

> HyungJin Lim a écrit :
>
>> Hi Alex,
>>
>> 2009/2/27 Alexandru Petrescu <alexandru.petrescu@gmail.com <mailto:
>> alexandru.petrescu@gmail.com>>
>>
>>    Hi Hyung-Jin,
>>
>>    HyungJin Lim a écrit :
>>    [...]
>>
>>        Host1 may be a Router I think. This router may be mobile
>> router.i.e,
>>        NEMO. In disaster environment, this scenario is possible. Then,
>>        gateway will use satelite channel. Considering your case, Host1
>> will
>>        get his address from the upper router (case 1) or the gateway (case
>>        2).
>>
>>
>>    Something along these lines?:
>>
>>     ------  wifi "adhoc1"  ------  wifi "adhoc2"  -------- Satelite /
>>    |NEMOMR|---------------|Router|---------------|Gatewway|--------Int'net
>>     ------ LL1         LL2 ------ LL3        LL4  --------          \
>>           G1                                 G4
>>
>>          LL1...4: IPv6 link-local addresses.
>>                   Self-formed according to rfc2464.
>>          G1: formed by NEMOMR either from RA sent by Router, or by
>>          DHCPv6 considering Router is a DHCPRelay and Gateway is
>>          a DHCPServer.
>>          G4: ?
>>     G4 is Router? or G4 is Gateway ?
>>
>
> G4 denotes the Global address of the Gateway, on the wifi "adhoc2" subnet.
>
> I guess G4 is located on the link to Gateway, in side of Router.
>> First of all, Gateway now has topologically correct address(TCA) to
>> Internet.
>>
>
> Yes, Gateway has a topologically-correct address, TCA if you wish; on its
> Satelite  interface.
>
> Also, Router should have TCA by any address configuration mechanisms.
>>
>
> Why should Router have a TCA?
>

  Is the Router fixed one ? I think "no". Do you assume this router only has
a function for packet routing ? I don't think so. This router also should be
managed from remote location in any case.
In realistic MANET environment, exactly, mesh network, this router can have
some roles as host I think.

I think we consider MANET-like situation.


>
>
> For example, RA sent by Gateway, or any other address conf. mechanisms.
>> Is it right ?
>>
>
> I'm not sure why the intermediary Router should have any other address than
> its link-local addresses.
>

Please refers to the above my opinion.

Hyung-Jin Lim


>
> Alex
>
>
>