[Re: http://tools.ietf.org/search/draft-hain-ipv6-ulac-01]

Owen DeLong owen at delong.com
Sun Apr 25 14:56:41 CDT 2010



On Apr 25, 2010, at 9:11 AM, sthaug at nethelp.no wrote:

>> What ISP would put a 'lifetime' on your ipv6 prefix?  That seems insane
>> to me... they should give you a /48 and be done with it.  Even the free
>> tunnel brokers do that.
>> 
>> But then I never understood dynamic ipv4 either....
> 
> Dynamic IPv4 isn't too difficult to understand. There are two main
> arguments:
> 
> - Dynamic addresses is a way to differentiate residential customers
> (who pay less) from business customers (who pay more).
> 
Which is both specious and obnoxious.

Given a choice between a provider which does this and one who does not, I will always choose the one that does not. Unfortunately, there is no PON vendor in my area, so I live with com cast business (on a dynamic IP because I refuse to pay their absurd mark-up on IP addresses). Given a PON vendor in my neighborhood, I'd drop Comcast in a heartbeat.

> - Dynamic addresses makes it much easier to handle customers in "bulk".
> You can have *one* standardized form of DNS info (forward/reverse), no
> customer defined DNS at all. You can easily move customers to a new
> aggregation box when the current box is reaching max capacity - just
> remember to lower your DHCP lease time beforehand. You may not need to
> alert customers individually as long as work is done within your well
> defined service windows. etc etc.
> 
This is true. However, I'd be willing to pay some amount to cover this difference. Interestingly, Comcast is the only provider where I've been unable to get a static address on a residential plan at any price. They're also the only provider that has tried to charge more for a static on business service.

> Steinar Haug, Nethelp consulting, sthaug at nethelp.no

Owen





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