nanog mailing list archives

Re: Dynamic IP log retention = 0?


From: Valdis.Kletnieks () vt edu
Date: Fri, 13 Mar 2009 17:15:50 -0400

On Fri, 13 Mar 2009 13:57:56 CDT, Bobby Mac said:

That said,  unless Covad is constantly exhausting it's pool or they mandate
that after the lease expires to give a different IP a reverse lookup would
give you the hostname of the offender which should remain accurate for some
amount of time.  No action on Covads part constitutes legal action on yoru
part...

OK. So you get hit by 129.257.34.98. You look up the PTR and get back
98.34.257.129.cable-pool-slash-12.covad.net.

What did you gain here? You knew it was in a Covad /12 before, and that's
all you know after, and Covad *still* isn't stopping their customer's bad
behavior.  After all, you didn't *really* care that the IP was assigned to
a computer belonging to Herman Munster, 1313 Mockingbird Lane.  What you
actually *wanted* was for somebody (preferably Covad) to hand Herman a clue.

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