Re: A good read and a question

I had the chance to meet the author of this draft a couple of week ago.
Asked him why it is that almost nobody uses /31 on point-to-point links
despite the RFC (3021) is out there since december 2000 (he is also the
co-author for this one)...it happens that vendors took forever to
accept/include it in their codes, so I think same thing will apply to class
E and we might never use it if we are really moving to IPv6.

Nicolas
http://ccie-en-espanol.blogspot.com/

On Thu, Nov 19, 2009 at 9:11 AM, <Keegan.Holley_at_sungard.com> wrote:

> There will definitely need to be some code updates for this to work. I've
> had the same thought in the past and every device I've tried to configure
> in this range has rejected it. This includes network gear and servers.
>
> Rack1R1(config-if)#ip address
> *Mar 4 20:06:20.013: %LINEPROTO-5-UPDOWN: Line protocol on Interface
> Loopback99
> 9, changed state to up
> Rack1R1(config-if)#ip address 240.1.1.222 255.255.255.0
> Not a valid host address - 240.1.1.222
> Rack1R1(config-if)#
> Rack1R1(config-if)#
>
>
>
>
>
>
>
> From:
> Ravi Singh <way2ccie_at_googlemail.com>
> To:
> Cisco certification <ccielab_at_groupstudy.com>
> Date:
> 11/19/2009 07:01 AM
> Subject:
> A good read and a question
> Sent by:
> <nobody_at_groupstudy.com>
>
>
>
> A few minutes back I was day dreaming about the good old IPv4 Address
> classes ;-) and a thought flashed my mind that the 240.0.0.0/4 class E has
> always been reserved for future use. I then thought when would this future
> arrive when we already have the IPv4 space almost depleted .. A google
> search led me to this URL which does have certain information on how this
> address space can/shall be used .
>
> http://tools.ietf.org/html/draft-fuller-240space-02
>
> While this is a good read , has anyone in here really had a chance to use
> or
> work on this address space..If yes, where and how ? how does the router
> behave for such IP addresses ?
>
> Ravi
>
>
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Received on Thu Nov 19 2009 - 09:29:57 ART