comcast dhcp leases

[me at mattgillen.net (Matthew Gillen)]

dsr at tao.merseine.nu wrote:
> On Sun, Oct 29, 2006 at 10:54:14AM -0500, Matthew Gillen wrote:
>> Has anyone else noticed that Comcast's lease times for dhcp addresses has
>> gone down significantly?  The lease time used to be on the order of days at
>> a time.  I was able to keep the same IP address for 2 years, even with
>> several extended downtimes for upgrades to my server box.
>>
>> Recently, the lease time is less than an hour.  Anyone have ideas on why
>> they would do that?
>>
>> Or is it just me?
> 
> It's probably just your neighborhood, and they're preparing to
> change the addressing scheme there -- split a node or something.
> 
> First they drop the lease time to an hour. That means that
> when they drop the lease time to five minutes, everyone is ready
> within an hour or so. Then they issue new addresses with a one
> hour lease, make the router changes, and see if everything is
> good. If so, the next set of leases is good for a week or so.
> 
> At least, that's how I would do it, and I think it's how they
> do.

Looks like you were right.  I had a power outage today, and when things came
back I had a different default router.

Good call. :-)
Matt

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