Re: When IPv4 will exhaust?

A good read ,related to the query posted ..(please mind the word wrap)

http://www.cisco.com/en/US/prod/collateral/iosswrel/ps6537/ps6553/brochure_c02-560497_ns1017_Networking_Solutions_Brochure.html

Ravi

On Sat, Oct 24, 2009 at 6:26 PM, Nadeem Rafi <nrafia_at_gmail.com> wrote:

> These big and fat a** should be strip of this privilege of having full A
> class IPs,
> http://en.wikipedia.org/wiki/List_of_assigned_/8_IP_address_blocks
>
> <http://en.wikipedia.org/wiki/List_of_assigned_/8_IP_address_blocks>we can
> see clearly that alone US state of department is using a huge percentage of
> class A ip address. .. . i think even their chairs and tables are IPed...
> may be they use ip numbers for inventory instead of inventory tags... what
> wast of internet addresses.
>
>
>
> On Sat, Oct 24, 2009 at 9:16 PM, Johnny B CCIE <jbccie_at_gmail.com> wrote:
>
> > Nadeem,
> >
> > This is a very well discussed topic by the regional RRs and they have
> > some free slides available on one of the slides I was pointed to and I
> > shared from nanog and sanog. They look like they are educating and
> > preparing their ISPs for this transition. The truth is the companies
> > who are holding on to entire class A's are at fault. Some justify them
> > by giving a public ip to every desktop and even printers. Wasteful and
> > selfish.
> >
> > On Sat, Oct 24, 2009 at 1:09 PM, Nadeem Rafi <nrafia_at_gmail.com> wrote:
> > > So here comes next question, its not when, but what will happen when
> > present
> > > blocks will be allocated which are just few at the time being? Will RR
> go
> > > after big a** who hold full class A networks and force them to release
> > to
> > > RR back or regional RR will force ISPs to go after natting?
> > > As for as i know, ISPs in China, India and some other countries are
> > already
> > > doing 3 or mover levels of Natting to accommodate shortage of IPs.
> > >
> > > Any input will be appreciated..
> > >
> > > Best Regards,
> > >
> > > Nadeem Rafi
> > >
> > > On Sat, Oct 24, 2009 at 7:59 PM, Wilhelm Boeddinghaus <
> > > wilhelm_at_boeddinghaus.de> wrote:
> > >
> > >> Hi,
> > >>
> > >> there is no killer application, IPv4 is running out and you will loose
> > >> contact to your customers. As soon as some people have IPv6 only, and
> > you
> > >> still stick to IPv4, no communication is possible.
> > >>
> > >> We networkers have to look after the client side of the network (RA
> adnd
> > >> DHCP) and the security side. Firewall rules have to be rewritten, etc.
> > And
> > >> taking NAT out of the network is a big change, do not take that easy.
> > >>
> > >> But for certifications like the CCIE it is still not important.
> > >>
> > >>
> > >> Greetings,
> > >>
> > >> Wilhelm
> > >> CCIE #25603 (R&S)
> > >>
> > >> Nadeem Rafi schrieb:
> > >>
> > >>> Thanks a lot ... I appreciate your answer and regarding applications
> > your
> > >>> views are correct. Most of the applications at some point use "hard
> > coded"
> > >>> ip addresses or simply not aware of IPv6 completely. What i can
> > understand,
> > >>> may be "networkers" part will be much simplified than OS/Applicaiton
> > Vendor
> > >>> side. OS admins and application vendors may be are in different boat
> > than
> > >>> "networkers". For such migration It need a lot of effort coupled
> with
> > huge
> > >>> investments on their part.
> > >>> Although IPv6 will exhaust sooner or later, its just a short time but
> > can
> > >>> we find out when non-networkers side will be ready to adopt IPv6
> > without
> > >>> seeing any monetary benefits? Is there any thing which IPv4 cannot do
> > and a
> > >>> IPV6 native "killer" application will do? Until a "killer"
> application
> > is in
> > >>> market, there is no compelling reason for OS/Application vendors to
> go
> > with
> > >>> IPv6.
> > >>>
> > >>> Just my 2 cents..........
> > >>>
> > >>> Best Regards,
> > >>>
> > >>> Nadeem Rafi
> > >>>
> > >>>
> > >>> On Sat, Oct 24, 2009 at 8:22 AM, Wilhelm Boeddinghaus <
> > >>> wilhelm_at_boeddinghaus.de <mailto:wilhelm_at_boeddinghaus.de>> wrote:
> > >>>
> > >>> Hi Nadeem,
> > >>>
> > >>> IPv4 will exhaust, there is no question about this. It does not
> > >>> really matter if it happens 2011 or 2012, it is soon.
> > >>>
> > >>> >From my experience the problem is not turning on IPv6 on an
> > >>> interface. Even getting OSPF running is not compliated. But there
> > >>> are a few missing parts. On some plattforms OSPF authentication is
> > >>> not implemented. There is no IPV6 loadbalancing.
> > >>>
> > >>> DHCP (address, DNS, etc.) and router advertisements (prefix,
> > >>> default gateway) have both to be used to get all needed
> > >>> information to a client in your network. So you get two protocols
> > >>> for the price of one. The client can change its IPv6 address
> > >>> (privacy extensions). Does this affect your firewall and access
> > >>> lists? Or the client get 2 IPV6 global unicast addresses, one from
> > >>> DHCP, one from RA.
> > >>>
> > >>> IPv6 works without NAT, so you have public IPv6 addresses on your
> > >>> clients in the network. Does this chance anything on the firewall?
> > >>>
> > >>> All applications need to be checked. For example you web server
> > >>> statistics. What do your scripts do with mixed log files? Is there
> > >>> GEO ip for IPv6? Have you IPv4 addresse hard coded somewhere in
> > >>> your code? Did you use Pv4 addresses as database index?
> > >>>
> > >>> The company I work for moves to IPv6, slowly, but we see the many
> > >>> bigger and smaller tasks that come with IPv6.
> > >>>
> > >>> I think Cisco should make IPV6 an important part of the CCIE lab.
> > >>> It is the protocol we all have to use in the comming years.
> > >>>
> > >>> Greetings,
> > >>>
> > >>> Wilhelm
> > >>> CCIE #25603 (R&S)
> > >>>
> > >>> i have come across one interesting counter about IPv4, link
> > >>> http://inetcore.com/project/ipv4ec/index_en.html
> > >>>
> > >>> What experts have views about depletion of IPv4?
> > >>>
> > >>> Best Regards,
> > >>>
> > >>> Nadeem Rafi
> > >>>
> > >>>
> > >>> Blogs and organic groups at http://www.ccie.net
> > >>>
> > >>>
> > >>>
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Received on Thu Oct 29 2009 - 12:19:11 ART