Thank you for all the replies. I am glad we can all understand the
issue. How about a compromise?
4.7 "ip4" and "ip6"
These mechanisms test if the <sending-host> falls into a given IP
network.
IP4 = "ip4" ":" ip4-network [ ip4-cidr-length ]
IP6 = "ip6" ":" ip6-network [ ip6-cidr-length ]
ip4-cidr-length = "/" 1*DIGIT
ip6-cidr-length = "/" 1*DIGIT
ip4-network = dotted-quad notation
ip6-network = conventional IPv6 notation
The <sending-host> is compared to the given network. If they match,
the mechanism matches.
If the cidr-length is omitted, the ip4-cidr-length is taken to be
"/32" and the ip6-cidr-length is taken to be "/128".
If the cidr-length is included, the resulting ip range MUST NOT fall
outside of the ip range owned by the publishing host.
If the cidr-length is included, the smallest cidr-length SHOULD be
used.
While the last two entries I am suggesting are not 'verifiable' using
MADRID, they would help administrators like me fight the good fight and
still be RFC compliant.
I don't want to get into an argument about the wording. Hopefully if
the wording is not 'appropriate' for the RFC, we can reword it while
still maintaining the root technical idea.
In fact, I am not even sure if it belongs in section 4.7 :)
Regards,
Damon Sauer
-----Original Message-----
From: owner-ietf-mxcomp(_at_)mail(_dot_)imc(_dot_)org
[mailto:owner-ietf-mxcomp(_at_)mail(_dot_)imc(_dot_)org]On Behalf Of Jon Kyme
Sent: Monday, May 31, 2004 9:32 AM
To: ietf-mxcomp(_at_)imc(_dot_)org
Subject: RE: Wide-Open MARID
Greg Connor:> I think the decision about what kind of MARID records are
"OK" or "Too
wide
open" should be left to the receiver.
Absolutely. '0/0' (for instance) must be a perfectly valid expression of
domain policy. One may choose to interpret that as 'unknown' or even
'super-bad' along with anything wider than 8bits (or 9, or 29). For that
matter, One might interpret any MARID statement as a strong spam signal
(as
now?). We haven't forgotten that anti-spam schemes are just one
potential
use of MARID data, right? So we should probably be wary of the
temptation
to shoehorn lots of application level stuff into a MARID spec.
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