RE: do ISPs keep track of end-user IP changes within thier network?

Option 82 info and logging. Frank -----Original Message----- From: Carlos Kamtha [mailto:kamtha@ak-labs.net] Sent: Wednesday, December 11, 2013 10:00 PM To: nanog@nanog.org Subject: do ISPs keep track of end-user IP changes within thier network? Hi, 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 for all.. (yes it was long ago..) Any feedback would be greatly appreciated.. Carlos.