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Re: I-D ACTION:draft-wilson-class-e-00.txt

2007-08-08 00:42:36
On Wednesday 08 August 2007 10:14:03 ext Brian E Carpenter wrote:
On 2007-08-07 16:15, Internet-Drafts(_at_)ietf(_dot_)org wrote:
A New Internet-Draft is available from the on-line Internet-Drafts
directories.


    Title           : Redesignation of 240/4 from 'Future Use" to "Limited 
Use for
Large Private Internets' Author(s)  : P. Wilson, et al.
    Filename        : draft-wilson-class-e-00.txt
    Pages           : 4
    Date            : 2007-8-7

   This document directs the IANA to designate the block of IPv4
   addresses from 240.0.0.0 to 255.255.255.255 (240.0.0.0/4) as unicast
   address space for limited use in large private Internets.

It seems to me that we first need a discussion about why this space can't
be released as public address space. Is it known to be already deployed
as de facto private space?

Some widespread IPv4 stacks refuse to handle these addresses, so nobody would 
ever want to use them on the public IPv4 Internet.

---

C:\>ver

Microsoft Windows XP [Version 5.1.2600]

C:\>ping -n 1 247.1.2.3

Pinging 247.1.2.3 with 32 bytes of data:

Destination specified is invalid.

Ping statistics for 247.1.2.3:
    Packets: Sent = 1, Received = 0, Lost = 1 (100% loss),

---

% uname -ro
2.6.22-8-generic GNU/Linux
% ping 247.1.2.3
connect: Invalid argument


-- 
Rémi Denis-Courmont

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