quietly....

John Payne john at sackheads.org
Wed Feb 2 14:24:42 CST 2011


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

> On Wed, Feb 2, 2011 at 8:55 AM, Iljitsch van Beijnum <iljitsch at muada.com> wrote:
>> On 2 feb 2011, at 17:14, Dave Israel wrote:
>> 
>>>> 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.
>> 
>>> So what if I want to assign different people to different resolvers by policy?
>> 
>> 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.
> 
> 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.
> 
> 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, 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. 

However, IPv6 on the enterprise network will continue to be seen as an after thought until and unless we get parity.



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