> interestingly, some software vendors ship w/ license > keys tied to IP addresses... particularly for enterprise > level stuff. not so easy to update in my experience. I've always thought that practice to be STUPID. It was stupid 15 years ago and it is still stupid today. Yes I've had to renumber sites with keys tied to IP addresses. > then there is the thorny DNS problem of updating the > root hints file. If DNS is so automated, why is this > still a big problem? (noting that the legacy address > for "B" is still getting 300qps, nearly three YEARS > after it was turned down) Once we get the root, net and root-server.net signed, writing out new hints is can be done with a high degree of assurance that the contents reflect reality. Sure there will still be old boxes that continue to try to talk to B but the new boxes won't and eventually all the old boxes will go, due to component failure if nothing else. > David is correct, scale does have its own set of renumbering > problems. While i believe you, i think your confidence > is based on some naieve assumptions. I'm not saying scale doesn't have problems. Automation however is the solution to those problems. That's why management stations were invented. Mark > --bill -- Mark Andrews, ISC 1 Seymour St., Dundas Valley, NSW 2117, Australia PHONE: +61 2 9871 4742 INTERNET: Mark_Andrews@xxxxxxx _______________________________________________ Ietf@xxxxxxxx https://www1.ietf.org/mailman/listinfo/ietf