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[DCHPv6] was Re: v6 subnet size for DSL & leased line customers
Even in a large enterprise, the ratio of "routers" to DHCP servers makes control of many end system parameters via DHCP a management win compared to configuration of "routers" with this "non-network core" data. (In case I was to abstruse, It is cheaper to maintain end system parameters in a smaller number of DHCP servers than in a larger number of "routers".)
This is completely separate from the fact that many experienced router engineers are smart enough configure routers with NTP server addresses in preference to DNS names, and likewise for many other parameters.
The end system population has requirements which respond much more dynamically to business requirements than do router configurations, which respond mostly to wiring configurations which are, by comparison, static. The statement that DHCP is not needed for IPv6 packet routing may well be exactly accurate. The absence of good DHCP support in IPv6 has costly consequences for enterprise management, of which IP routing is a small part.
You have seen this before from me: Consider the Customer/Business Management viewpoint, not just that of routing packets around between boxes. Pull your head out of your patch panel and look at all the business requirements. If you can show me a more cost effective way to distribute all the parameters mentioned here to all end systems, I'll support it. In the meantime, don't use religious arguments to prevent me from using whatever is appropriate to manage my business. I'll even use NAT boxes, if there is no equivalently affordable stateful firewall box!
Begin forwarded message:
From: Leo Bicknell <[email protected]> Date: December 27, 2007 7:33:08 PM EST To: North American Network Operators Group <[email protected]> Subject: Re: v6 subnet size for DSL & leased line customers