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[AfriNIC-rpd] Do we push for more V4 or advocate dual stack ??

David Conrad drc at
Mon Sep 3 17:22:37 UTC 2007


On Aug 30, 2007, at 11:11 PM, Colin Alston wrote:
>>> For running dual-stack, you don't need public IPv4 addresses.
>> I thought that at a bare minimum, you needed public IPv4 addresses  
>> for the NAT gateways and any public facing IPv4 services.
> In a world where people need IPv6 facing services, it doesn't  
> matter whether you are using private or public IPv4 for connecting  
> core infrastructure.

Well, yes.  However, if we're in a world where people need IPv6  
facing services, then we're done.  The problem is that people who can  
only obtain IPv6 addresses from their registry will most likely still  
need to gain access to or provide IPv4 services for the foreseeable  
future. One possible solution is for the ISP to provide a single  
public IPv4 address to customers for a NAT gateway as well as offer  
IPv4 hosting services, aggregating multiple customers' services on a  
single IPv4 address.  Another option would be for ISPs to simply  
require their customers to come with whatever IPv4 addresses they  
need. Note that the former is a better choice from the perspective of  
the routing system.


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