Re: #1132: Allowing IP addresses as path-identiites - Poll result

["Charles Lindsey" <chl@xxxxxxxxxxxxxxxx>]

In <432A517D.6D39@xxxxxxxxxxxxxxxxx> Frank Ellermann <nobody@xxxxxxxxxxxxxxxxx> writes:

>Charles Lindsey wrote:

>> Frank found a nice syntax for <hostname> in RFC 2396
>> its successor RFC 3986 has removed that, and refers you
>> instead to RFC 1034 plus RFC 1123.

>Maybe we need a 3696bis as a BCP, not only "informational".
>The relaxed 3696 idea without optional trailing dot is:

What we actually need is a 1034/1035bis :-( .

> toplabel = [ label ] ALPHA [ label ]    ; at least one ALPHA

OK, I've put that into my syntax proposal.


>The (apparent) consensus here to allow "_" in addition to
>"-" is already at odds with what "everybody" thinks to know.

Eh? There is no proposal anywhere to allow "_" in FQDNs. It is proposed to
allow it in <bareword>s, because it always has been so since out earliest
drafts, and there is apparently some usage (someone said so here recently
IIRC).


>> do we want to be able to distinguish <source-identity>s from
>> <path-identity>s by the presence of .SEEN/.MATCH/.MISMATCH,
>> or somesuch)?

>IMHO a <source> is only relevant for !source.MISMATCH! cases.

But there is existing practice to insert the source (usually as an
IP-address) by sites which apparently haven't checked whether it MATCHes
or not. Hence the proposal to introduce ".SEEN" (or "!SEEN!").

Whether you then introduce ".MATCH" (or "!MATCH!") is just a matter of
being consistent by offering the complete set. If it is allowed, USEPRO
will certainly discourage you from using it, in favour of "!!".


>Or even site!!path-id!claimed-id!... (is that really okay ?)

No, because that looks like the same site inserted both path-id and
claimed-id (just to cover all its options - like demon who might want both
"demon" and "news.demon.co.uk" to be present because some peers expected
one and some the other).

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