nanog mailing list archives

Re: quietly....


From: Mark Andrews <marka () isc org>
Date: Thu, 03 Feb 2011 11:39:00 +1100


In message <09C9D1B8-F003-4932-ABC1-7299F81F1C29 () sackheads org>, John Payne writes:

On Feb 2, 2011, at 3:15 PM, George Herbert wrote:

On Wed, Feb 2, 2011 at 8:55 AM, Iljitsch van Beijnum =
<iljitsch () muada com> wrote:
On 2 feb 2011, at 17:14, Dave Israel wrote:
=20
I understand people use DHCP for lots of stuff today. But that's =
mainly because DHCP is there, not because it's the best possible way to =
get that particular job done.
=20
So what if I want to assign different people to different resolvers =
by policy?
=20
For the record: I'm not saying that DHCPv6 is never useful. DHCPv6 is =
intended as a stateful configuration provisioning tool, i.e., to give =
different hosts different configurations. If that's what you need then =
DHCP fits the bill. However, in most small scale environments this is =
not what's needed so DHCP doesn't fit the bill.
=20
There are all sized enivronments.  Political battles having partly
crippled DHCPv6 in ways that end up significantly limiting IPv6 uptake
into large enterprise organizations ... it's hard to describe how
frustrating this is without resorting to thrown fragile objects
against hard walls.  As an active consultant to medium and large
enterprises, this is driving me nuts.
=20
This single item is in my estimation contributing at least 6, perhaps
12 months to the worldwide average delay in IPv6 uptake.  I know
several organizations that would have been there six months ago had
DHCPv6 not had this flaw.  They're currently 6-12 months from getting
there.

Well, to be fair... In my "decent sized" enterprise, DHCPv6 and the lack =
of default route is irritating but not the blocker.
The second largest OS we have doesn't support DHCPv6 at all, so its not =
like fixing the default route option is a magic bullet.

So complain to the OS vendor.  DHCPv6 should be there.  DHCPv6 is
many years old now.  It's been part of the configuration model for
a node for over a decade.

So, we're going to have DHCP for IPv4 and SLAAC for IPv6 for now.  DNS, =
NTP, etc will be done over IPv4 - no way around that.

We have vendor struggles.  The current pain is the lack of good support =
for VRRPv3.  RA guard is another.=20

However, IPv6 on the enterprise network will continue to be seen as an =
after thought until and unless we get parity.=
-- 
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: marka () isc org


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