In message <f0ca01f52b274d13ad84dbfe6aad2bd1@BN1PR04MB250.namprd04.prod.outlook .com>, Alexander Lopez writes:
On Mar 24, 2014, at 9:36 AM, Alexander Lopez <alex.lopez@opsys.com> wrote:
not to mention the cost in readdressing your entire network when you change an upstream provider.
Nat was a fix to a problem of lack of addresses, however, the use of private address space 10/8, 192.168/16 has allowed many to enjoy a simple network addressing scheme.
This is easily and better solved in IPv6 using provider independent addressing which is readily available. <rant> Yes but the number of people needing just a /64 will far outnumber the one requesting a /48.
My bet is the number needing more that a single /64 will exceed the number needing just a /64. Most phones really need two /64 for tethering and currently there are lots of kludges to work around only one being available.
I would say that the majority of users today and for the future will not require a /48, but will simply use the allocation given to them by their upstream.
Many today do not multi-home and how many SMB customers just use a single Public IP behind a NAT device?
How many would multi-home if it was a standard feature built into all CPE devices? Cable + DSL? Homenet is designing for all home CPE devices to support multi-homing. Plug in CPE from ISP 1 and CPE from ISP 2 and it will just work. How many don't get a realistic choice of multiple addresses?
It is easy for us on this list to use or request PIA, but what about the 10 person office?
It is late and I am just rambling, but even with DHCP(4and6) changing IP networks is not a trivial thing. Not hard, but it will require a lot more planning than what many do today of simply changing the WAN IP address and some records in the DNS (if needed)
<OldGuyComplainingAboutHowGoodThingsWereBackInTheDay> I am not saying anything that is new to members of this group, I guess I am just venting a bit of frustration. </OldGuyComplainingAboutHowGoodThingsWereBackInTheDay> </rant>
Ipv6 requires a complete reeducation of they way we look at routing and the core of the network.
I wouldn't say complete, but significant.
Owen
-- Mark Andrews, ISC 1 Seymour St., Dundas Valley, NSW 2117, Australia PHONE: +61 2 9871 4742 INTERNET: marka@isc.org