Re: MANET Address Autoconf Issues

Dear Macker,

--- Joe Macker <macker <at> itd.nrl.navy.mil> wrote:
> At 03:03 PM 3/1/2004, Jaehoon Jeong wrote:
> >Hi Maneters,
> >
> >I send my presentation material in order to discuss
> >"MANET IP Address Autoconfiguration Issues" today
> >afternoon as follows;
> > - PPT file:
> 
> I, for one, will not be there so here are a few
> comments.
> In summary, I do not agree with your requirements.
> They are too strict.
> 
> We should support multiple way of configuring MANETs
> just as a real network supports this in multiple
> ways.
> 

You are right in the aspect of address selection.
I agree with you that MANET can allow several
configuration methods;
  - DHCPv4 or DHCPv6
  - IPv6 Stateless Address Autoconf
  - Dynamic Configuration of Link-Local IPv4 Addresses
  - Manual Configuration
  - etc.

As you know, MANET address autoconf seems to consist
of the following four steps;

 Step 1: Address selection
         How to select one of IP addresses in the
         address space. 

 Step 2: Duplicate address detection
         How to detect a duplicate address

 Step 3: Address change negotiation
         Which node should perform a reallocation
         procedure

 Step 4: Maintenance of upper-layer sessions
         How to let an upper-layer session avoid
         a connection breakage 

Especially, it seems that you talk about address
selection problem of Step 1.
Whichever address selection mechanism a mobile node
uses, a unified DAD mechanism is required.

> The use of MUSTs MUST be carefully considered.
> 

Sure, I will carefully replace MUSTs with another
through the discussion with MANET members including
authors.

> There are a few common problem areas I think we can
> define
> and potentially work on. (e.g., flooding
> service,etc)
> 

Do you mean that we can use a general flooding service
for DAD operation?
If so, is it not so general a requirement?
Anyway, I agree with you that there are other problem
areas. 
We authors need your feedback and will reflect your
comments and suggestions to a revised requirements
draft.

Thanks.

Regards,
Paul

> -Joe
> >  
>
>http://www.adhoc.6ants.net/~paul/ietf/manet/manet-addr-autoconf-issues-jaehoon.ppt
> > - PDF file:
> >  
>
>http://www.adhoc.6ants.net/~paul/ietf/manet/manet-addr-autoconf-issues-jaehoon.pdf
> >
> >If participants read this material, you can prepare
> >the discussion well. Also, those who cannot take
> part
> >in this Seoul meeting can comment on my drafts by
> >email.
> >
> >Thanks.
> >
> >Regards,
> >Jaehoon Paul Jeong
> >
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> 

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