Re: [OPSAWG] Second Draft update and more input requested for draft-azinger-additional-private-ipv4-space-issues

["Davies, Greg J" <[e-mail]>]

Hi Marla and Leo,
 
The following are some comments on the second draft for your consideration:

* Section 3 first paragraph - At the moment this paragraph sounds too definitive in saying that peer to peer communication won't work through NAT and therefore require a globally unique address.  In practice most of the popular peer to peer applications (e.g. P2P file sharing clients, VoIP clients, etc.) will work through NAT because they use NAT traversal techniques.  I believe a brief reference to 'NAT Traversal' should be incorporated into this paragraph.

* Section 3 second paragraph - This paragraph says there is a tendency for low-cost CPE to use 192.168.0.0/16 as the default allowing providers to make full use of 10.0.0.0/8.  In Australia at least it appears that low-cost CPE is just as likely, if not more likely, to use 10.0.0.0/24 or 10.0.1.0/24 (or in extreme cases it could even be 10.0.0.0/8)as the default LAN address range. This makes it more difficult for the provider to choose a non-conflicting range.

* Section 5.1 first paragraph - Where you say "this benefit incurs a cost by reducing the pool of gobal unicast addresses" perhaps this could be qualified a bit more.  For example, reducing the pool by a /8 would bring forward the global run-out by about one month.  Whether the run-out is one month or the next is not such a big cost if the benefit is a working solution that mutiple providers can use for the entire transition period. The cost may therefore be acceptable.
  
Regards,
Greg  
 

Greg Davies 

Emerging Network Technology and Architecture 
Chief Technology Office 
Telstra Corporation Limited 

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________________________________

From: [e-mail] [mailto:[e-mail]] On Behalf Of Azinger, Marla
Sent: Wednesday, 3 February 2010 5:48 AM
To: [e-mail]
Subject: [OPSAWG] Second Draft update and more input requested for draft-azinger-additional-private-ipv4-space-issues


Hi,

We have updated draft-azinger-additional-private-ipv4-space-issues-02 following the very helpful comments we received both on and off-list. In order to get more feedback we are going to solicit feedback from INTAREA and V6OPS in addition to OPSAWG where we have submitted the document. 

The changes made on this updated version are summarized below:

1. The abstract has extra text explaining the purpose of the document 

2. The section numbering has been changed in-line with Alfred's suggestion 

3. The number of unallocated /8s has been updated 

4. A reference to the NRO's RIR Policy Comparison Matrix section on transfers has been added in 4.3 

5. A reference to draft-davies-reusable-ipv4-address-block has been added in 4.1 and 5.15.

6. Transfer policy work has been attributed to the RIR communities in 4.3, as per Ricardo's note 

7. A typo ("of of" to "use of") has been corrected in the 2nd paragraph of 5.1 

8. A reference to the IPv4 report page has been added as per Alfred's suggestion 

9. We have added extra text on selecting a prefix length for new private space in 5.1 

10. We have added extra text on people using parts of the "used" /8s for private space in 5.1 

11. We have noted that 1.0.0.0/8 was allocated in January 2010 

12. The non RFC and I-D references are now ordered alphabetically

The draft can be found at:

http://tools.ietf.org/html/draft-azinger-additional-private-ipv4-space-issues-02 <http://tools.ietf.org/html/draft-azinger-additional-private-ipv4-space-issues-02> 

and there's a diff highlighting the changes:

http://tools.ietf.org/rfcdiff?url2=draft-azinger-additional-private-ipv4-space-issues-02.txt <http://tools.ietf.org/rfcdiff?url2=draft-azinger-additional-private-ipv4-space-issues-02.txt> 

Kind regards,

Marla Azinger & Leo Vegoda