mDNS discussion?

Freek Dijkstra <[email protected]> Mon, 19 Jul 2004 18:04:56 +0200
Newsgroups gmane.ietf.zeroconf
Message-ID <BD21BDC8.C008%[email protected]>
Hi,

I got curious into the operating of ZeroConf, so I viewed the zeroconf.org
and multicastdns.org sites, read an article or two, noted the controversy
with LLMNR, and read draft-cheshire-dnsext-multicastdns-04.

This list seems pretty quiet (or the archive is broken...). That's too bad.
I'm just an innocent spectator, not really involved, who just want a "zero
configuration" network. I don't care if the solution is called ZeroConf,
mDNS, RendezVous, DNS-SD, LLMNR or whatever.

I understand that zeroconf involves 3 issues topics: automatic IP
allocation, name resolution and service discovery. (I don't understand the
last one, Automatic allocation of Multicast Addresses, yet).

The first, Link-local interface configuration seems more or less a done deal
with the 169.254/16 range and the draft-ietf-zeroconf-ipv4-linklocal-17.

The third, service discovery, seems focussed around DNS-SD, UPnP and SLP.
I'm probably ignore this (my time is unfortunately limited). My first
impression at least is that UPnP has unnecessary overhead, but I really
can't judge on DNS-SD and SLP.

The second, name resolution seems to focus on either LLMNR or mDNS. What is
the current status of mDNS? Should I conclude from the fact that
draft-cheshire-dnsext-multicastdns-04 is a individual submission (and can't
thus, according to IETF guidelines become a standards track RFC, but only
experimental or informational track), is not an IETF-endorsed activity, but
(probably just as important) a community-driven activity?

Two questions: is the above correct? In particular, are mDNS and LLMNR
compatible, and if not, does mDNS have functions LLMNR not have? Pointers
are welcome (I will read them both, but a short note or pointer is
appreciated).

Second, having just (partially) read draft-cheshire-dnsext-multicastdns-04,
is it useful to give feedback? I found an obvious type (FF0X::FB in section
25 should read FF02::FB), but I'm willing to give more feedback, if
appreciated. If so, were to sent it to? To this list, the authors
individually, or even [email protected]?

Kind regards,
Freek Dijkstra

PS: for the curious and interested: I work for the University of Amsterdam,
and have been to IETF 52&53 when I was a student, but have no professional
interest anymore. Just personal curiousity.