Re: POLL: Consensus for moving forward with Teredo?

[Marc Blanchet <Marc.Blanchet@hexago.com>]

b) 
because: 
- there are other ways on the table to do nat-traversal.
- teredo introduces many security issues, such as very open relays that are
subject to be used for large scale DDOS
- teredo is complex to implement
- teredo introduces states and buffering in relays when the first packets
are sent, which have important issues in implementing.
- teredo does not work for symmetric NATs and the "fallback" for a user in
this situation is "no service".

Marc.

-- Friday, April 30, 2004 20:32:26 +0300 Pekka Savola <pekkas@netcore.fi>
wrote/a ecrit:

> Hi,
> 
> (co-chair hat on)
> 
> As identified in the scenarios analysis at IETF59 and in
> draft-savola-v6ops-tunneling-01.txt, there appears to a need which
> cannot be filled by another mechanism for Teredo at least in one major
> Unmanaged scenario.
> 
> Is there rough consensus to move forward with Teredo? (i.e., to adopt
> it as WG document in this WG or elsewhere, for Proposed Standard.)
> 
> The main issue raised has been to call for a more extensive analysis
> for the deployment implications of native, 6to4, and Teredo.  There is
> already discussion of this in the Unmanaged Analysis document.  There
> seemed to be very little energy or interest in the WG to drive this
> much further.
> 
> The options regarrding Teredo at this stage seem to be:
> 
>  a) Go forward with Teredo, hone the deployment implications in the 
>     unmanaged analysis in parallel (if and as appropriate),
> 
>  b) Conclude that there is no sufficiently strong need for Teredo, and 
>     not support its advancement (for PS) at this stage, or
> 
>  c) Decide that we need to analyze the scenarios or deployment more 
>     before being able to make a decision.  
> 
>     If so, please state where you believe more analysis is needed.. 
>     and volunteer if possible :)
> 
> If you have an opinion, please state it within a week, i.e., by next
> Friday, 7th May.
> 
> Thanks!
> 
> (co-chair hat off)
> 



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Marc Blanchet
Hexago
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