Subj : RIPE to run out of IPv4 this week?
To   : Michiel van der Vlist
From : Andre Grueneberg
Date : Tue Aug 14 2012 22:35:00

Hi Michiel

Michiel van der Vlist schrieb:

[IPX/SPX ... still existing]
 MvdV> What about others? Banyan VINES is stll in W98, but it is gone 
 MvdV> from XP. What about X.25? Appletalk? IBM token ring? ARCnet?

I cannot comment on all of them. For sure I can tell you that X.25 (over Frame Relay) is still in operational use ... e.g. in some mobile operator networks (I know of at least 2, but I suspect at least one more) in Germany it's used for management of some network elements. Same goes with OSI networking, TDM, ATM ...

I am quite certain, that token ring is still around as well. ;)

 AG>> It's like at my work ... for some reasons we still have some
 AG>> Mainframes running MVS around. You do not usually realize these
 AG>> dinosaurs are around, but they definitely are.
 MvdV> What are they used for? Are they actually doing something useful
 MvdV> or did nobody bother to switch them off?

Oh yes, they are hosting a software change management system.

[everyone having IPv6]
 MvdV> I write it in quotes to indicate that it should not be taken too
 MvdV> literally as in "no exceptions".
 MvdV> More like "everyone" has a cell phone. (My 03 year old mother
 MvdV> doesn't) 

You mean like in fixed line telephones/telephone services are going to die because everyone has got a cell phone? :->

Yes, I agree ... that will be similar to IPv4 and IPv6. ;)

 AG>> When everyone has disposed off his 10 years old IPv4-only printer?
 MvdV> It will take as long as it took the printers with Centronic
 MvdV> interfaces to fade out.

I still have mine. It's working great ... thanks for asking. ;)

 MvdV> My T65 (http://nl.wikipedia.org/wiki/T65) is still in working
 MvdV> order. But I can't use it to make outgoing calls any more. Pulse
 MvdV> dialling is no longer supported by what ever I can hook it ip to.

What? You might want to use a cheap ISDN a/b adapter (which usually still support pulse dialing), attach it to your Fritzbox S0 interface and have fun. At least my ISDN hardware still supports pulse dialing on its analogous ports.

 AG>> There's still people out there developing IPv4 only.
 MvdV> in COBOL? ;-)

No, in Java, .NET ... name one ...

 AG>> These will be mostly internal applications/services, but there's
 AG>> little value in replacing it ... software is cheap.
 MvdV> Hmmm...

.... I forgot: as long as you don't have to change it. :)

 AG>> My point being: This day is far-far away. And for most people Internet
 AG>> means business. Losing 1% of customers can make a huge difference ...
 AG>> at least that was the excuse for slow IPv6 adoption.
 MvdV> I think that was indeed just an excuse. Losing 1% of the
 MvdV> customers may or may not be a big deal. It all depends what type
 MvdV> of customers. The tail end of the curve is seldom profitable.

.... Gmail is not working (for one person) ... may be quite an expensive incident.

CU Andre               E-Mail: andre@grueneberg.de 
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 * Origin: Testing timed/Linux (2:2411/525)

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