RE: IANA reserved Address Space

[Joel Jaeggli <joelja () darkwing uoregon edu>]

Given that unallocated class A address space represents one of the biggest 
chunks of remaining address space fairly likely...

you'll notice that 60/8 was assigned in april 03 to apnic, lacnic was 
assigned 2 /8s in the last year and so forth...

On Fri, 30 May 2003 Brennan_Murphy () NAI com wrote:

> But not to be a pest but what are the odds
> the IANA would ever allocate the 1 and 100
> nets to someone? Is this an unpredictable
> matter or is there a schedule of what's
> next somewhere? Or which is more likely, the
> world adopts IP v6 or the 1 and 100 nets
> are deployed on the internet? :-) It is
> apparent that I really want to use these
> address ranges but I do need to grapple
> with the possibility that this lab will
> need internet connectivity at some point. 
>
> -----Original Message-----
> From: Murphy, Brennan 
> Sent: Friday, May 30, 2003 8:49 AM
> To: nanog () merit edu
> Subject: RE: IANA reserved Address Space
>
>
>
> Others have pointed out that I should stick to
> RFC 1918 address space. But again, this is a
> lab network and to use the words of another,
> one of the things I want to do is make it much
> easier to "parse visually" my route tables.
> Think of it as a "metric system" type of numbering
> plan.  The 1 and 100 nets would not be advertised
> via BGP obviously...not a hijack situation at all.
>
> If I take into account the possibility that this
> lab will have later requirements to connect to
> the internet, all I have to do is have a NAT plan
> in place...one that even takes into account that
> the 1 and 100 nets could become available some
> day, correct?
>
> Thanks to those who have responded so far.
>
> -----Original Message-----
> From: bmanning () karoshi com [mailto:bmanning () karoshi com] 
> Sent: Friday, May 30, 2003 8:08 AM
> To: Murphy, Brennan
> Cc: nanog () merit edu
> Subject: Re: IANA reserved Address Space
>
>
>
> networks 1 and 100 are reserved for future delegation.
> network 10 is delegated for private networks, such as your
> lab.
>
> if you use networks 1 and 100, you are hijacking these
> numbers.  
>
> that said, as long as your lab is never going to connect
> to the Internet,  you may want to consider using the following
> prefixes:
>
> 4.0.0.0/8
> 38.0.0.0/8
> 127.0.0.0/8
> 192.0.0.0/8
>
>
>
> > I'm tasked with coming up with an IP plan for an very large lab
> > network. I want to maximize route table manageability and 
> > router/firewall log readability. I was thinking of building this lab 
> > with the following address space:
> >
> > 1.0.0.0 /8
> > 10.0.0.0 /8
> > 100.0.0.0 /8
> >
> > I need 3 distinct zones which is why I wanted to separate them out. In
>
> > any case, I was wondering about the status of the 1 /8 and the 100 /8
> > networks. What does it mean that they are IANA reserved? Reserved for 
> > what? http://www.iana.org/assignments/ipv4-address-space
> >
> > Anyone else ever use IANA reserved address spacing for
> > lab networks? Is there anything special I need to know?
> > I'm under the impression that as long as I stay away
> > from special use address space, I've got no worries.
> > http://www.rfc-editor.org/rfc/rfc3330.txt
> >
> > Thanks,
> > BM

-- 
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Joel Jaeggli          Academic User Services   joelja () darkwing uoregon edu    
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