Even if not globally routed, you may want to avoid a possible clash with another organization, for example in case of a merge. ULA-central is NOT intended to be uses as IPv6 PI. IPv6 PI is available already in ARIN, APNIC and AfriNIC. Ongoing policy proposals in both RIPE NCC and LACNIC. Regards, Jordi (I'm the the one that submitted the ULA-central policy proposal to all the regions, ARIN coming next)
De: "william(at)elan.net" <william@elan.net> Responder a: <ppml-bounces@arin.net> Fecha: Fri, 11 May 2007 00:03:08 -0700 (PDT) Para: Tony Hain <alh-ietf@tndh.net> CC: <vixie@vix.com>, <ppml@arin.net>, "address-policy-wg@ripe.net" <address-policy-wg@ripe.net> Asunto: Re: [ppml] article about IPv6 vs firewalls vs NAT in arstechnica (seen on slashdot)
I don't understand your point about why ULA need to be registered if its not going to be globally routed. Also PI is not the same as ULA - PI do come from RIRs and in IPv6 there was no way to get PI (except in a few special cases) until recent ARIN's micro-allocation policy.
On Fri, 11 May 2007, Tony Hain wrote:
I agree that this will help inform the debate, and while Iljitsch did a good job of outlining the issue, he left out a significant point::: People explicitly chose to be in the state of "as there is currently no obvious way to make services only available locally" by insisting that the local-scope addressing range have a global-scope as far as application developers were concerned. Now the application developers are complaining about the consequences of their choice, because the alternative to 'no routing path for an attack' is to insert a device that has to make policy decisions with limited information.
The current ULA-central discussions will be directly involved in this issue. It is critical that all of the RIR's have policies establishing a mechanism for registering ULA-central prefixes & PI. For those who don't recall, the reason ULA-central was tabled was that it was seen as a potential end-run to acquire PI space in the absence of appropriate policy to do so out of a range recognized for global routing.
The need for keeping some things local while others are global is real, and the lack of appropriate mechanisms to accomplish that through the routing system that is designed to deal with path selection leads to entire industries for fragile work-arounds along with their increased complexity.
Tony
-----Original Message----- From: ppml-bounces@arin.net [mailto:ppml-bounces@arin.net] On Behalf Of vixie@vix.com Sent: Thursday, May 10, 2007 9:59 PM To: ppml@arin.net Subject: [ppml] article about IPv6 vs firewalls vs NAT in arstechnica (seen on slashdot)
i think that this article will help inform the debate around the ipv6 transition:
http://arstechnica.com/articles/paedia/ipv6-firewall-mixed-blessing.ars _______________________________________________ This message sent to you through the ARIN Public Policy Mailing List (PPML@arin.net). Manage your mailing list subscription at: http://lists.arin.net/mailman/listinfo/ppml
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