nanog mailing list archives

Re: IPv6 "bloat"


From: Crist Clark <cjc+nanog () pumpky net>
Date: Sun, 20 Mar 2022 18:59:11 -0700

This is going to be one of the big things the US Federal govt requirements
for agencies to meet the IPv6-only benchmarks will need. Solutions and
products are going to have to mature quickly for agencies to hit 80%
IPv6-only by end of FY25.

On Sun, Mar 20, 2022 at 4:38 PM Owen DeLong via NANOG <nanog () nanog org>
wrote:



On Mar 20, 2022, at 07:17, Lady Benjamin Cannon of Glencoe <lb () 6by7 net>
wrote:

It seems sketchy to me to even retain client MAC information, no? Genuine
question.

Didn’t we go to a distinct unique identifier system for this very reason?

Am I in the 1990s here or?

We’re just handing out addresses to UEs and things seem to work fine.  For
me personally, I find the notation of v6 to be very unasthetic, so I tend
to just conceal it from myself now.


Correct me if I’m wrong, but it sounds like you’re viewing this from a
service provider perspective, in which case everything you’ve said is
basically correct.

However, the enterprise world is very different. Right, wrong, or
otherwise, many enterprises feel a strong compulsion to have very strict
control over addressing and relatively direct accountability of “x address
= y employee” (regardless of whether that’s actually true or not).

In those environments, yes, IPv6 does present a learning curve and some
additional challenges. They are not insurmountable and if you were starting
from scratch needing to build your enterprise on IPv6, it would actually be
less difficult than IPv4. IPv4, however, has the advantage of well trodden
paths for enterprise solutions in this space. IPv6 will get there as more
enterprises start to deploy IPv6, but right now both sides of that process
suffer from the classic chicken/egg problem. The problem is slow to get
solved because there are no chickens asking for a solution. Chickens aren’t
asking for it because there are no eggs to create chickens that need IPv6.

Owen


-LB

Ms. Lady Benjamin PD Cannon of Glencoe, ASCE
6x7 Networks & 6x7 Telecom, LLC
CEO
ben () 6by7 net
"The only fully end-to-end encrypted global telecommunications company
in the world.”
ANNOUNCING: 6x7 GLOBAL MARITIME
<https://alexmhoulton.wixsite.com/6x7networks>

FCC License KJ6FJJ




On Mar 19, 2022, at 3:56 PM, Matt Hoppes <
mattlists () rivervalleyinternet net> wrote:



On 3/19/22 6:50 PM, Michael Thomas wrote:

On 3/19/22 3:47 PM, Matt Hoppes wrote:

It has "features" which are at a minimum problematic and at a maximum show
stoppers for network operators.

IPv6 seems like it was designed to be a private network communication
stack, and how an ISP would use and distribute it was a second though.

What might those be? And it doesn't seem to be a show stopper for a lot of
very large carriers.


Primarily the ability to end-to-end authenticate end devices.   The
primary and largest glaring issue is that DHCPv6 from the client does not
include the MAC address, it includes the (I believe) UUID.

We have to sniff the packets to figure out the MAC so that we can
authenticate the client and/or assign an IP address to the client properly.

It depends how you're managing the network.  If you're running PPPoE you
can encapsulate in that.   But PPPoE is very 1990 and has its own set of
problems.  For those running encapsulated traffic, authentication to the
modem MAC via DHCP that becomes broken.  And thus far, I have not seen a
solution offered to it.


Secondly - and less importantly to deployment, IPv6 also provides a layer
of problematic tracking for advertisers.  Where as before many devices were
behind a PAT, now every device has a unique ID -- probably for the life of
the device. Marketers can now pinpoint down not just to an IP address that
identifies a single NAT interface, but each individual device.  This is
problematic from a data collection standpoint.





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