[167507] in North American Network Operators' Group
RE: do ISPs keep track of end-user IP changes within thier network?
daemon@ATHENA.MIT.EDU (Staudinger, Malcolm)
Fri Dec 13 17:55:32 2013
From: "Staudinger, Malcolm" <mstaudinger@corp.earthlink.com>
To: Mikael Abrahamsson <swmike@swm.pp.se>
Date: Fri, 13 Dec 2013 22:55:10 +0000
In-Reply-To: <CAM8Fm=7t0Ot+dfMg=ktMSd6vycVc4WUMpD1-i2JsTnBiYEGnzA@mail.gmail.com>
Cc: "nanog@nanog.org" <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
I'd say in addition to just "how long", it's "how badly do you need them ".=
Searchable database could go back a few months while tapes usually exist f=
or a lot longer than that. But you're not going to get the provider to dig =
through those unless they're under some legal obligation to do so.=20
Malcolm
-----Original Message-----
From: Ray Wong [mailto:rayw@rayw.net]=20
Sent: Thursday, December 12, 2013 12:50 AM
To: Mikael Abrahamsson
Cc: nanog@nanog.org
Subject: Re: do ISPs keep track of end-user IP changes within thier network=
?
been a while, but seems like lately it's more a question of how long. ISPs =
can be in position where they need to, but as things have consolidated, see=
ms like they'd really like to forget it as soon as they can. If you've got =
a specific case in mind, likely best to find a direct contact and get a res=
ponse about policy, even if it has to be off-record. The big ones (like one=
I likely shouldn't mention by name unless they do as I don't work for
them) definitely do, at least long enough to handle DMCA requests and other=
legal obligations.
-R>
On Wed, Dec 11, 2013 at 9:36 PM, Mikael Abrahamsson <swmike@swm.pp.se>wrote=
:
> On Wed, 11 Dec 2013, Carlos Kamtha wrote:
>
> just a general curiousity question. it's been a long time since ive
>> worked at an ISP.
>>
>> back then it was non-expiring DHCP leases and in some cases static IP=20
>> for all.. (yes it was long ago..)
>>
>> Any feedback would be greatly appreciated..
>>
>
> Yes, it's very common to keep track of what user account/line had what=20
> IP at what time.
>
> --
> Mikael Abrahamsson email: swmike@swm.pp.se
>
>
