Re: Conclusions? Re: Fixed Boundary (/29) Assignments

[Andre Oppermann <]

Hans Petter Holen wrote:
> 
> > How should we proceed now, as a WG?
> 
> Someone should try to formulate a consensus from the previous discussion.
> 
> Post that to the list, and present it to the wg in Bologna.
> 
> Any voulenteers ?

Maybe the address space usage should be categorized by sort of access,
see below.

This can then be documented in a policy recommendation like the policy
on single-IP webhosting and static-dialup IP's today.

As I have see so far there are different ways how the carriers/ISP's
are handling technologies like xDSL/CableModem:

 Most often we can differentiate between some sort of virtual dial-up
 and shared media, examples:

  - Many xDSL require PPPoE or PPPoA on the client side to establish
    a connection to the Internet.

    -> This is simply a virtualized dial-up, same rules apply, eg. you
       get a real IP out of an pool when you dial in. If you allow more
       concurrent connection from a customer is your problem.

       The need for a static IP has to be justified just as it is
       today with analog/ISDN dial-up (RIPE-141).

       Here the number of concurrent users is significant. This can
       be usually at most one per customer (always-on).


  - Many CableModem operator run their network segments as simple
    LAN's and assign an IP address dynamically by DHCP (or some
    other mechanism).

    -> This can also be treated as virtualized dial-up, same rules
       etc. The number of concurrent computers (devices) online
       depends on the operator. As far as I know many allow only
       one.

       The need for a static IP has to be justified just as it is
       today with analog/ISDN dial-up (RIPE-141).

       Here again the number of concurrent users is significant. This
       can be usually at most one per customer (always-on).


  - Sometimes xDSL lines are run like a full blown leased line with
    line IP's and a subnet on the customers side.

    -> This should be discouraged like ip-based webhosting unless
       justified with a RIPE-141 form as this wastes not only a /29
       (in the case of a general assignment) but also the line IP's,
       so the efficiency goes even further down.

       Any use of leased line type access should be discouraged for
       the average residential / small business mom-and-pop shop
       unless justified by an RIPE-141 form.

       As long as you get at least one real IP you either have your
       PC directly connected or you have some sort of 'smart' router
       equipment (mention Cisco, ZyXEL, BinTec, etc.) which can do
       NAT/PAT or masquerading just fine, even for services like
       Napster and such.


  - Are there any sorts of "new" broadband accesses I forgot?


Yes, based on the response to this post I would volunteer to make
this a full RIPE document and present it in Bologna.

-- 
Andre Oppermann

AO6-RIPE