RE: IPv6 Confusion

["TJ" <trejrco () gmail com>]

> How does IPv6 addressing work?

Short version:
2000::/3                        The currently active global unicast pool
RIRx::/12                       IANA (by default) assigns /12s to RIRs
RIRx:ISPx::/32          RIRs (by default) assign /32s to ISPs
RIRx:ISPx:ORGx::/48             ISPs (by default) assign /48s to enterprises
(/56s to homes)
RIRx:ISPx:ORGx:VLAN::/64        Enterprises 'subnet' their allocation into
/64s    (debate over [/126 | /127] to P2P links)


> I know it's been hashed and rehashed but several orgs I am associated with
are
> about to ask for their allocations from ARIN and we are all realizing we
don't
> really know how the network / subnet structure trickles down from the edge
to
> the host.  We really don't have a firm grasp of all of this as there seems
to
> be multiple options regarding how many addresses should be assigned to a
host,
> if the MAC address should be included in the address or if that is just for
> auto-configuration purposes or what the heck the deal is.  There are a lot
of
> clear statements out there and a lot that are clear as mud.  Unfortunately,
> even when trying to analyze which RFC superseded another.  Can I just
subnet it

Use the IETF/RFC web interface, clearly shows what RFCs where deprecated by,
or deprecate/update, a given doc:
        e.g. - http://tools.ietf.org/html/rfc2461
                ... has an obsoleted by, updated by, and obsoletes ...


> all like IPv4 but with room to grow or is each host really going to need
its
> own /84 or something?  I can't see why hosts would need any more addresses
than
> today but maybe I'm missing something because a lot of addressing models
sure
> allow for a huge number of unique addresses per host.
>
>
> My buddy and I are about to go to Barnes and Noble, not having and luck
with
> standard internet media but then we realized...  how will we know if any of
> that is really what we are looking for either?

Depends what you are looking for, and possibly your HW vendor of choice.


<<SNIP>>