>>>> "Many network security devices block all ICMP messages for perceived
>>>> security benefits, including the errors that are necessary for the proper
>>>> operation of PMTUD. This can result in connections that complete the
>>>> TCP three-way handshake correctly, but then hang when data is transferred.
>>>> This state is referred to as a black hole connection."
>>>
>>> Yes. What we are asked to do for Internet Standard is show that a protocol
>>> is widely deployed and is interoperable. That's undoubtedly true of RFC1981.
>>> The fact that it also has an important failure mode should certainly be
>>> documented, but I suspect that every Internet Standard has at least
>>> one important failure mode.
>>
>> the problem is that this particular failure mode is essentially "does
>> not work on the real internet." perhaps documenting that is useful.
>> but i guess this is ipv6.
>
> I fully agree that it should be documented, but the details are already
> documented elsewhere. In this document it can be quite short.
i have no problem with terse :)
"Unfortunately, this protocol does not actually work on the real
internet, see \cite{elsewhere}," seems fine to me.
randy