DNS for RFC3180 GLOP reverse zone ?

Pekka Savola pekkas at netcore.fi
Fri May 7 00:29:08 CDT 2010


On Thu, 6 May 2010, James Hess wrote:
> Now that AS numbers have been extended to 4 bytes in length, and RIRs
> are even about to stop differentiating between them  when allocating
> AS numbers, or allowing anyone to request and be sure of getting a new
> 16-bit ASN.

Then you may be interested to see this Last Call:
http://www.ietf.org/mail-archive/web/mboned/current/msg01021.html
(draft-ietf-mboned-ipv4-uni-based-mcast)

> It seems that it will be impossible for the scheme to be followed in IPv4.
> A  more sensible  BCP  at this point would be to designate  the entire
> 223/8  to IRRs,  like was suggested by the BCP for  64512 -- 65535,
> since most ASNs are not using GLOP addressing.

Uhh. Take away the numbers from those who have already started using 
them?  Are you serious?

There were multiple attempts to the private etc. ASN parts of 233/8 to 
RIRs but these have failed (lack of interest?).  The current situation 
(RFC5771) is that this has been designated as "AD-HOC Block III" and 
is assignable from IANA.

The curious minds may also want to take a look at:
http://tools.ietf.org/html/draft-ietf-mboned-addrarch-06

(Comments welcome, this has been waiting the completion of 
abovementioned draft.)

-- 
Pekka Savola                 "You each name yourselves king, yet the
Netcore Oy                    kingdom bleeds."
Systems. Networks. Security. -- George R.R. Martin: A Clash of Kings




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