Re: [Int-area] I-D Action:draft-ietf-intarea-shared-addressing-issues-03.txt

[Maglione Roberta <[e-mail]>]

Hi Mat,
    I read the draft and I have a comment:
in section 5.2.1 where you talk about port negotiation / port mapping when  NAT is performed in the network, (like for example DS-lite case), in my opinion it would be useful to refer to Port Control Protocol work (draft-ietf-pcp-base-04 currently discussed in PCP WG), as a possible way to address this issue; you can see PCP as an evolution of UPnP/NAT-PMP for a geographic scenario.

Thanks,
Regards,
Roberta



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Subject: [Int-area] I-D Action:draft-ietf-intarea-shared-addressing-issues-03.txt

A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Internet Area Working Group Working Group of the IETF.


        Title           : Issues with IP Address Sharing
        Author(s)       : M. Ford, et al.
        Filename        : draft-ietf-intarea-shared-addressing-issues-03.txt
        Pages           : 29
        Date            : 2011-02-10

The completion of IPv4 address allocations from IANA and the RIRs is
causing service providers around the world to question how they will
continue providing IPv4 connectivity service to their subscribers
when there are no longer sufficient IPv4 addresses to allocate them
one per subscriber.  Several possible solutions to this problem are
now emerging based around the idea of shared IPv4 addressing.  These
solutions give rise to a number of issues and this memo identifies
those common to all such address sharing approaches.  Such issues
include application failures, additional service monitoring
complexity, new security vulnerabilities and so on.  Solution-
specific discussions are out of scope.

Over the long term, deploying IPv6 is the only way to ease pressure
on the public IPv4 address pool without the need for address sharing
mechanisms that give rise to the issues identified herein.

A URL for this Internet-Draft is:
http://www.ietf.org/internet-drafts/draft-ietf-intarea-shared-addressing-issues-03.txt

Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/

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