Mailinglist Archive: opensuse (1599 mails)

[James Knott <james.knott@xxxxxxxxxx>]

Adam Tauno Williams wrote:
> On Fri, 2009-10-23 at 11:28 +0200, Per Jessen wrote:
>   
> > G T Smith wrote:
> >     
> > > The wiki article below seems to suggest that implementing a form of
> > > NAT for IPv6 is under discussion by the IETF...
> > > http://en.wikipedia.org/wiki/IPv6
> > > Also suggests the implementation is not exactly consistent (or as
> > > simple as intended)...
> > >       
> > NAT seems completely superfluous when the networks are dished out
> > as /64.  I did notice that there is a reserved range of
> > private/local/site-unique addresses (prefix fd), but I'm not quite sure
> > what that is intended for. 
> >     
>
> It is used for:
> (a) Networks that are not connected to the Internet.
> (b) Setting up an IPv6 on a network where there is no ISP [yet] to
> allocate you a 'real' IPv6 subnet.  As they still have not addressed the
> fact that it is hard and expensive for an organization to just get an
> allocation of its own.   Having to depend on an ISP for addressing is
> really annoying.
>
>   
IPv6 already provides that.  At the lowest level, it provides an address
range that's dependent only on the MAC address.  There are also local
address ranges that allow routing within an organization etc.  NAT
provides nothing in this regard and the address space it provides is
also not needed.

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