[arin-discuss] Trying to Understand IPV6

Randy Carpenter rcarpen at network1.net
Tue Sep 14 12:19:57 EDT 2010


What are everyones' thoughts regarding dynamic versus static assignments for residential users?

Our current plan is to use DHCPv6 with prefix delegation to auto-assign the WAN and LAN prefixes. In this scenario, we could easily change assignments without anyone having to touch any equipment.

The big question is will that wreak havoc with customers' internal network if the addresses ever change?

Static assignments for 10,000's of customers does not sound very appealing.

Any other considerations?

thanks,
-Randy

----- Original Message -----
> We've already received our first /32 allocation, I was thinking that
> this would be the last allocation we would ever need. Since we're a
> cable TV provider we are somewhat at the mercy of DOCSIS and CableLabs
> as to how v6 addresses will be distributed as well as the companies
> that
> create the provisioning software. I guess I need to start that
> discussion first with the provisioning software developers. Last I
> heard they were still about 6 months out (their estimate) from having
> anything to play with. Compared to our cable plant, the metro ethernet
> customers sound easy... A /64 on the WAN and a /48 on the LAN unless
> I'm
> missing something.
> 
> -----Original Message-----
> From: Owen DeLong [mailto:owen at delong.com]
> Sent: Tuesday, September 14, 2010 11:25 AM
> To: Tom Bourgeois
> Cc: arin-discuss at arin.net
> Subject: Re: [arin-discuss] Trying to Understand IPV6
> 
> Tom,
> 
> If you know you have 115k customers, you should request more than a
> /32
> to begin with. Probably something approaching a 30 or a /29 under
> current policy. I am soon going to be drafting a policy proposal that
> supports the notion of rounding up to nibble boundaries in order to
> provide better guidance to ISPs on right-sizing their requests and
> also
> to provide better human factors engineering in the address space
> overall.
> 
> Owen
> 
> On Sep 14, 2010, at 7:23 AM, Tom Bourgeois wrote:
> 
> >
> >
> > ________________________________
> >
> > From: arin-discuss-bounces at arin.net
> > [mailto:arin-discuss-bounces at arin.net] On Behalf Of Ron Cleven
> > Sent: Tuesday, September 14, 2010 9:49 AM
> > To: arin-discuss at arin.net
> > Subject: Re: [arin-discuss] Trying to Understand IPV6
> >
> >
> > I was with you right with you (assign /48 to every customer, no
> > exceptions) up until you came up with the big-isp exception (assign
> > /56 to private residences).
> >
> > Why would Comcast (using your example) customers get "only" a /56?
> >
> > Is there something wrong with the math (are big-isp's going to run
> > out
> 
> > of /48's)?
> >
> > If it is ok for Comcast customers to get /56's, why isn't it ok for
> > all other private residences to get /56's (what are the /56
> > customers
> > giving up)?
> >
> > As usual, I am horribly confused.
> >
> > Ditto. We currently have around 115k residential data subs in
> > addition to a few thousand business customers. Compared to the
> > Comcasts, AT&Ts, and Time Warner's of the world we're definitely on
> > the small side but if I give everyone a /48 then I guess I need to
> > go
> > back and get a couple more /32s soon. I guess I don't see the huge
> > problem with aggregation on our local plant.
> >
> > michael.dillon at bt.com wrote:



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