Re: [Int-area] Call for comment on draft-rahman-rtg-router-alert-considerations-02.txt

[Jukka MJ Manner <jmanner at cs.Helsinki.FI>]

Hi,

I'll repeat here my comment that I gave on the mic.

1. I believe the point of the draft is to say that you should not use RAO 
end-to-end across the Internet. If you have a closely controlled 
environment, RAO is okey, provided that you know what you are doing (and 
this part is what the document is trying to tell, describe the more or 
less well-knwon problems with RAO). Yet, to me the message is a bit fuzzy 
and unclear.

2. IPv6 hop-by-hop options have the same problems, I guess.


Cheers,
Jukka

On Thu, 23 Jul 2009, Francois Le Faucheur IMAP wrote:

> Hello,
>
> The Routing, Transport and Internet area directors have agreed to move the
> work on Router Alert option (that started in Routing Area) into the Internet
> Area. 
> Therefore, we would appreciate feedback from this list on the new version
> of draft-rahman-rtg-router-alert-considerations.
>
> Thank you
>
> Francois
>
> Begin forwarded message:
>
>       From: Internet-Drafts at ietf.org
> Date: 3 July 2009 19:15:02 CEDT
> To: i-d-announce at ietf.org
> Subject: I-D
> Action:draft-rahman-rtg-router-alert-considerations-02.txt 
> Reply-To: internet-drafts at ietf.org
>
> A New Internet-Draft is available from the on-line Internet-Drafts
> directories.
>
> Title           : IP Router Alert Considerations and Usage
> Author(s)       : F. Le Faucheur
> Filename        : draft-rahman-rtg-router-alert-considerations-02.txt
> Pages           : 18
> Date            : 2009-07-03
>
> The IP Router Alert Option is an IP option that alerts transit
> routers to more closely examine the contents of an IP packet.  RSVP,
> PGM, IGMP/MLD and MRD are some of the protocols which make use of the
> IP Router Alert option.  This document discusses security aspects,
> common practices and usage guidelines around the use of the current
> IP Router Alert option.  Specifically, it provides recommendations on
> the use of Router Alert by new protocols, discusses controlled
> environments where existing protocols depending on Router Alert can
> be used effectively and discusses protection approaches for Service
> Providers.  Finally it provides brief guidelines for Router Alert
> implementation on routers.
>
> A URL for this Internet-Draft is:
> http://www.ietf.org/internet-drafts/draft-rahman-rtg-router-alert-considera
> tions-02.txt
>
> Internet-Drafts are also available by anonymous FTP at:
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>
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