On 4/17/14 8:51 PM, "Matthew Kaufman" <matthew@matthew.at> wrote:
While you're at it, the document can explain to admins who have been burned, often more than once, by the pain of re-numbering internal services at static addresses how IPv6 without NAT will magically solve this problem.
http://datatracker.ietf.org/doc/rfc6879/ This document analyzes events that cause renumbering and describes the current renumbering methods. These are described in three categories: those applicable during network design, those applicable during preparation for renumbering, and those applicable during the renumbering operation. Lee
Matthew Kaufman
(Sent from my iPhone)
On Apr 17, 2014, at 4:20 PM, Brandon Ross <bross@pobox.com> wrote:
On Thu, 17 Apr 2014, Sander Steffann wrote:
Also, I note your draft is entitled "Requirements for IPv6 Enterprise Firewalls." Frankly, no "enterprise" firewall will be taken seriously without address-overloaded NAT. I realize that's a controversial statement in the IPv6 world but until you get past it you're basically wasting your time on a document which won't be useful to industry.
I disagree. While there certainly will be organisations that want such a 'feature' it is certainly not a requirement for every (I hope most, but I might be optimistic) enterprises.
And I not only agree with Sander, but would also argue for a definitive statement in a document like this SPECIFICALLY to help educate the enterprise networking community on how to implement a secure border for IPv6 without the need for NAT. Having a document to point at that has been blessed by the IETF/community is key to helping recover the end-to-end principle. Such a document may or may not be totally in scope for a "firewall" document, but should talk about concepts like default-deny inbound traffic, stateful inspection and the use of address space that is not announced to the Internet and/or is completely blocked at borders for all traffic.
Heck, we could even make it less specific to IPv6 and create a document that describes these concepts and show how NAT is not necessary nor wise for IPv4, either. (Yes, yes, other than address conservation.)
-- Brandon Ross Yahoo & AIM: BrandonNRoss +1-404-635-6667 ICQ: 2269442 Skype: brandonross Schedule a meeting: http://www.doodle.com/bross