In message <CB028331.30361%c.donley@xxxxxxxxxxxxx>, Chris Donley writes: > > On 12/5/11 2:13 PM, "John C Klensin" <john-ietf@xxxxxxx> wrote: > > > > > > >--On Monday, December 05, 2011 11:54 -0800 David Conrad > ><drc@xxxxxxxxxxxxxxx> wrote: > > > >> Bob, > >> > >> On Dec 5, 2011, at 11:36 AM, Bob Hinden wrote: > >>> So a CGN deployment is a new deployment and the ISPs choosing > >>> to do this could make sure that their customers CPE can > >>> support class E addresses, upgrade the CPE firmware, > >> > >> I think the ISPs are saying that there is a non-trivial base > >> of deployed non-upgradable CPE out there now. > >> > >>> or send them new CPE. > >> > >> This assumes either (a) the ISP is responsible for the CPE > >> and/or (b) the ISP is willing to pay for this. I'm guessing > >> these assumptions aren't valid. > > > >Right. But, unless there is CPE gear out there that is so > >locked into a particular 1918 (or other) address range that it > >can't use anything else internally (I haven't heard of such > >equipment, but maybe it is out there), this is a much stronger > >argument for a "dear customer, either renumber or upgrade your > >hardware" position than for an allocation that will force that > >"renumber or upgrade" position as soon as, e.g., ISPs merge or > >discover a need for an extra layer or CGN. > > > > john > > > On DOCSIS networks, there are typically two deployment scenarios: > A) subscriber plugs PC directly into the CM > B) subscriber provides a router, which connects to the CM > > In both cases, the subscriber is responsible for the equipment. Many > subscribers don't know what an IP address is, and don't care. I'm trying > to imagine my parents receiving such a letter "renumber your IP address > and/or buy a new PC or router". Such a letter would probably cause anger > and confusion and an increased readiness to switch to the ISP across town > that's using squat space and doesn't require customers to call Geek Squad > or buy something else. > > Chris It's really only those that have a router connected that need to check. The ordinary PC that is not being used as a router is not a issue with RFC 1918 addresses. "If you have a router connected to the cable modem or are using a PC in Internet Connection Sharing (ICS) mode please reconfigure it to not use the address range "...." for the home network. Most routers and PC in ICS mode already do not use this address range." That said a lot of customers won't know how to check and/or change the address range. Additionally this also affects everybody that is currently using this block of RFC 1918 address as the IETF is taking it away from them. Not just the customers behind CGNs. Mark -- Mark Andrews, ISC 1 Seymour St., Dundas Valley, NSW 2117, Australia PHONE: +61 2 9871 4742 INTERNET: marka@xxxxxxx _______________________________________________ Ietf mailing list Ietf@xxxxxxxx https://www.ietf.org/mailman/listinfo/ietf