Whois 172/12

bmanning at vacation.karoshi.com bmanning at vacation.karoshi.com
Sun Jan 15 06:47:19 CST 2012


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