[ NNSquad ] Re: ISP's resetting RealPlayer?

["Jeremy George" <jeremy@georgeco.us>]

> -----Original Message-----
> From: nnsquad-bounces+jeremy=georgeco.us@nnsquad.org [mailto:nnsquad-
> bounces+jeremy=georgeco.us@nnsquad.org] On Behalf Of Craig A. Finseth
> Sent: Tuesday, January 15, 2008 8:44 PM
> To: pde@eff.org
> Cc: nnsquad@nnsquad.org
> Subject: [ NNSquad ] Re: ISP's resetting RealPlayer?
> 
>    > Your interrupted streams may also stem from another cause. If you
>    > do not have a static IP address, you may find that long term
>    > connections are interrupted when your IP address is renewed or
>    > changed. In this case, it's not the result of a policy decision
>    > by the ISP at all, but just a normal and natural side effect --
>    > and you can avoid it by paying for a static IP address.
> 
>    FWIW, this is unlikely with any normal DHCP configuration.  DHCP has a
>    long window for lease renewal, so unless you go offline for an extended
>    period of time (typically a day or two), you won't change IP addresses.
> 
> The duration of a DHCP lease totally depends on how the server is
> configured.  If an ISP is short on IPs, I can (and have) see a lease
> as short as an hour.
> 
> I'm not saying that such short leases are recommended in general, but
> they are quite legal DHCP.
> 
> Craig

  Yes.  RFC1541 specified a minimum lease duration of one hour.  RFC2131
removed that constraint.  As I read it, there is no protocol specified
minimum currently.

  Even so, in the enterprise anyway, an hour's lease would certainly be
abnormal, even bizarre.  What is the normal best practice range for ISPs?

- Jeremy