nanog mailing list archives

Re: Whois 172/12


From: Alex Ryu <r.hyunseog () ieee org>
Date: Sun, 15 Jan 2012 09:43:24 -0600

Similar to 1.0.0.0/8 case, which was allocated to APNIC last year or so...


On Sun, Jan 15, 2012 at 6:47 AM,  <bmanning () vacation karoshi com> wrote:
On Sun, Jan 15, 2012 at 06:36:12AM -0600, Robert Bonomi wrote:
From nanog-bounces+bonomi=mail.r-bonomi.com () nanog org  Sun Jan 15 02:02:00 2012
Subject: Re: Whois 172/12
From: "Patrick W. Gilmore" <patrick () ianai net>
Date: Sun, 15 Jan 2012 02:58:11 -0500
To: NANOG list <nanog () nanog org>

Read RFC1918.

Likely a machine on his local network (i.e. behind the same NAT box) is hitting him.


Patrick,
  I'v read RFC-1918.   I cannot find *any* reference to  172.0/12, as the OP
was asking about.  172.16/12, yes. but not 172.0/12.  Can you please clarify
your advice?

ZZ


       so as a stylistic point,   172/12  is supposed to equal 172.0.0.0/12?

       if memory serves, back in the day, there were records of allocations in this space,
       pre-ARIN. When RFC 1918 was settled on, there were some folks blocking 172.0.0.0/8
       so there was talk of relocating those folks into other space.

/bill



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