Re: [tcpm] ICMPv6 Error Handling at TCP draft-fujisaki-tcpm-icmpv6-reaction-00.txt

Fernando Gont wrote:
> At 06:31 a.m. 21/03/2007, Arifumi Matsumoto wrote:
> 
>> Anyway, it doesn't matter which specific ICMPv6 code falls into hard
>> or soft here.
> 
> Exactly. That's why it doesn't make sense to do the mapping from ICMPv6 
> to ICMPv4. The point is that there's no clear definition of what is a 
> hard error or a soft error. There's no such thing as soft or hard by 
> itself. It depends *when* you receive the error message. Defining ICMP 
> admin prohibited as soft or hard is IMHO pointless.

No. I mean it doesn't matter in this example admin prohibit is hard
or soft as far as there is hard error.

>> This is my opinion about RFC1122-revision and soft-error RFC
>> relationship. As soft-error RFC will be informational in the immediate
>> future, IMO all the vendors that implements RFC1122 may not even
>> notice or take a look at it.
> 
> We have had this discussion of Informational vs. Std track for one or 
> two *years*, more than one year ago. And the WG agreed on Informational.
> 
> As for vendors not looking at Informational docs.... I don't buy that at 
> all. Let's be clear: Any vendor with a clue will (or what's the purpose 
> of Informational docs, after all?). As a matter of fact, many vendors 
> already look at internet drafts.
> 
> The ICMP attacks draft is aiming at Informational, too. Yet virtually 
> all vendors have implemented most of it. Nobody ever bothered whether it 
> was Std track or Informational.

IMO, ICMP attack draft addresses a security problem, so it may be easier
to make people move.

> If your specific problem arises from use of IPv6, then you can send the 
> vendor (Microsoft?) the soft errors draft, and even direct them to the 
> v6fix site. If that's not enough, I guess the only thing left is to have 
> their clients tell them that it really sucks to have to wait dozens of 
> seconds to browse a web page.

It may work for my specific problem. For the benefit of every
people using the Internet, which way should we take ?

I'd like to know everybody's opnion in this wg. I'm glad if you
could drop me a line on-list or off-list.

Kindest regards.

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