> On Sun, Sep 16, 2007 at 12:17:21PM +1000, Mark Andrews wrote:
> > 
> > > On Sun, Sep 16, 2007 at 12:08:30AM +1000, Mark Andrews wrote:
> > > > 
> > > > >       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.
> > > 
> > >   stupid or not, it exists and is not ammenable to automation.
> > 
> >     Why isn't it?  It's just one more message for the management
> >     station to push out.
> 
>       notifcation sure...  getting the other side to re-issue the license
>       with the new IP's (which the MS has to figure out what they are on 
>       its own, wiht the kewl AI-based smarts that it has) - and then
>       getting the new code installed/configured ... all under the automated
>       hands of "master control".... is a different set of considerations.

        Actually if they want to tie the licence to a address, a ULA
        would provide exactly the same level of assurance they get
        today and make it independent of PA renumber events.

> > > > >       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.
> > > 
> > >   automation can augment renumbering events, but until we
> > >   have a fundamental change in architecture, renumbering will require
> > >   human intervention and will always be disruptive.
> > 
> >     It doesn't take a change in architecture.  We have the
> >     technology today to remove the need to tie anything to specific
> >     IP addresses.  It just requires the willingness to use it.
> 
>       simple assertion does not make it so.  perhaps we should make a checkli
> st
>       and see which things meet your criteria.  (my assertion that location/I
> D
>       overload is built in to both IPv4 and IPv6 seems to be born out by the
>       specs, documentation, and commentary over the past 25 years ... and tha
> t
>       until one can cleanly seperate the two, that renumbering will be diffic
> ult
>       should also be tested)  I have provided TWO cases where renumbering is
>       is difficult to automate - i'm sure i can find others.  I beleive your
>       claim (oblique as it may be) is that the DNS name is the long-term pers
> istant
>       identifier...  I tried to make that claim a decade ago and was persuade
> d
>       (eventually) otherwise.  Time to dig through the archives to see if tha
> t
>       logic still holds true.
> 
> 
> > 
> >     Mark
> >     
> >  
> > > --bill
> > > Opinions expressed may not even be mine by the time you read them, and
> > > certainly don't reflect those of any other entity (legal or otherwise).
> > -- 
> > Mark Andrews, ISC
> > 1 Seymour St., Dundas Valley, NSW 2117, Australia
> > PHONE: +61 2 9871 4742                 INTERNET: [EMAIL PROTECTED]
> 
> -- 
> --bill
> 
> Opinions expressed may not even be mine by the time you read them, and
> certainly don't reflect those of any other entity (legal or otherwise).
> 
> 
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-- 
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: [EMAIL PROTECTED]

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