[58703] in North American Network Operators' Group
RE: IANA reserved Address Space
daemon@ATHENA.MIT.EDU (Brennan_Murphy@NAI.com)
Fri May 30 08:50:09 2003
Date: Fri, 30 May 2003 05:49:28 -0700
From: <Brennan_Murphy@NAI.com>
To: <nanog@merit.edu>
Errors-To: owner-nanog-outgoing@merit.edu
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]=20
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. =20
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
>=20
>=20
> I'm tasked with coming up with an IP plan for an very large lab=20
> network. I want to maximize route table manageability and=20
> router/firewall log readability. I was thinking of building this lab=20
> with the following address space:
>=20
> 1.0.0.0 /8
> 10.0.0.0 /8
> 100.0.0.0 /8
>=20
> 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=20
> networks. What does it mean that they are IANA reserved? Reserved for=20
> what? http://www.iana.org/assignments/ipv4-address-space
>=20
> 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.=20
> http://www.rfc-editor.org/rfc/rfc3330.txt
>=20
> Thanks,
> BM
>=20
