On Wed, 26 Mar 2014, Luke S. Crawford wrote:
On 03/24/2014 06:18 PM, Owen DeLong wrote:
DHCPv6 is no less robust in my experience than DHCPv4.
ARP and ND have mostly equivalent issues.
This depends a lot on what you mean by 'robust'
Now, I have dealt with NAT, and I see IPv6 as a technology with the potential
to make my life less unpleasant. I really want IPv6 to succeed.
However, DHCPv6 isn't anywhere near as useful for me, as someone who normally
deals with IPs that don't change, as DHCPv4 is.
With DHCPv4, my customers all get an address based on their mac that doesn't
change if their box is re-installed. I configure this on the DHCP server,
and the customer can run whatever dhcp client they like on whatever OS they
like and they get the same IP every time.
With DHCPv6 there is a time-based identifier that is added to the mac that
makes it impossible, as far as I can tell, to give the customer a consistent
IP across OS wipes without doing significant client configuration.
This is stupidity of the DHCPv6 client/OS implementation. They should use
DUID type 3 (DUID-LL) by default, not DUID type 1 (DUID-LLT). This can be
circumvented by setting the default to type 3, but...
Regards,
Janos Mohacsi
